Federal Register / Vol. 82, No.

1 / Tuesday, January 3, 2017 / Rules and Regulations 7

(h) Corrective Actions sub-step. An AMOC is required for any DEPARTMENT OF TRANSPORTATION
If any defect (e.g., rifling, gouging, nicks, or deviations to RC steps, including substeps
burrs, or excessive surface roughness) is and identified figures. Federal Aviation Administration
found in any fastener hole (other than (ii) Steps not labeled as RC may be
normally produced during a typical reaming deviated from using accepted methods in 14 CFR Part 39
operation), during accomplishment of any accordance with the operator’s maintenance
inspection (related investigative actions) or inspection program without obtaining
required by this AD, and Boeing Alert [Docket No. FAA–2016–0457; Directorate
approval of an AMOC, provided the RC steps, Identifier 2015–NM–084–AD; Amendment
Service Bulletin 767–53A0267, Revision 1,
including substeps and identified figures, can 39–18751; AD 2016–25–25]
dated August 4, 2016, specifies to contact
Boeing for repair instructions: Before further still be done as specified, and the airplane
flight, repair in accordance with the can be put back in an airworthy condition.
RIN 2120–AA64
procedures specified in paragraph (k) of this (l) Related Information
AD. Airworthiness Directives; BAE
For more information about this AD,
(i) Exception to the Service Information Systems (Operations) Limited
contact Wayne Lockett, Aerospace Engineer,
Where Boeing Alert Service Bulletin 767– Airframe Branch, ANM–120S, FAA, Seattle
Airplanes
53A0267, Revision 1, dated August 4, 2016, ACO, 1601 Lind Avenue SW., Renton, WA AGENCY: Federal Aviation
specifies a compliance time ‘‘after the 98057–3356; phone: 425–917–6447; fax: 425–
original issue date of this service bulletin,’’ Administration (FAA), Department of
917–6590; email: wayne.lockett@faa.gov. Transportation (DOT).
this AD requires compliance within the
specified time after the effective date of this (m) Material Incorporated by Reference ACTION: Final rule.
AD.
(1) The Director of the Federal Register
(j) Credit for Previous Actions approved the incorporation by reference
SUMMARY: We are superseding
(IBR) of the service information listed in this
Airworthiness Directive (AD) 2012–11–
This paragraph provides credit for the 15 for all BAE Systems (Operations)
actions required by paragraphs (g) and (h) of paragraph under 5 U.S.C. 552(a) and 1 CFR
this AD, if those actions were performed part 51. Limited Model 4101 airplanes. AD
before the effective date of this AD using (2) You must use this service information 2012–11–15 required a one-time
Boeing Alert Service Bulletin 767–53A0267, as applicable to do the actions required by detailed inspection for cracks,
dated August 13, 2015; which is not this AD, unless the AD specifies otherwise. corrosion, and other defects of the rear
incorporated by reference in this AD. (i) Boeing Alert Service Bulletin 767– face of the wing rear spar, and repair if
(k) Alternative Methods of Compliance 53A0267, Revision 1, dated August 4, 2016. necessary. This new AD requires
(AMOCs) (ii) Reserved. repetitive detailed inspections, and
(3) For service information identified in repair if necessary. This AD was
(1) The Manager, Seattle Aircraft
Certification Office (ACO), FAA, has the this AD, contact Boeing Commercial prompted by new reports of cracking
authority to approve AMOCs for this AD, if Airplanes, Attention: Contractual & Data found in the wing rear spar and
requested using the procedures found in 14 Services (C&DS), 2600 Westminster Blvd., technical analysis results, which
CFR 39.19. In accordance with 14 CFR 39.19, MC 110–SK57, Seal Beach, CA 90740; confirmed that the crack initiation and
send your request to your principal inspector telephone 562–797–1717; Internet https:// propagation are due to fatigue, with no
or local Flight Standards District Office, as www.myboeingfleet.com. indication of any other crack initiation
appropriate. If sending information directly (4) You may view this service information mechanism (e.g., stress corrosion). We
to the manager of the ACO, send it to the at the FAA, Transport Airplane Directorate, are issuing this AD to address the unsafe
attention of the person identified in condition on these products.
1601 Lind Avenue SW., Renton, WA. For
paragraph (l) of this AD. Information may be
emailed to: 9–ANM-Seattle-ACO-AMOC- information on the availability of this DATES: This AD is effective February 7,
Requests@faa.gov. material at the FAA, call 425–227–1221. 2017.
(2) Before using any approved AMOC, (5) You may view this service information The Director of the Federal Register
notify your appropriate principal inspector, that is incorporated by reference at the approved the incorporation by reference
or lacking a principal inspector, the manager National Archives and Records of certain publications listed in this AD
of the local flight standards district office/ Administration (NARA). For information on as of February 7, 2017.
certificate holding district office. the availability of this material at NARA, call
(3) An AMOC that provides an acceptable 202–741–6030, or go to: http:// ADDRESSES: For service information
level of safety may be used for any repair, www.archives.gov/federal-register/cfr/ibr- identified in this final rule, contact BAE
modification, or alteration required by this locations.html. Systems (Operations) Limited, Customer
AD if it is approved by the Boeing Information Department, Prestwick
Commercial Airplanes Organization Issued in Renton, Washington, on International Airport, Ayrshire, KA9
Designation Authorization (ODA) that has November 25, 2016. 2RW, Scotland, United Kingdom;
been authorized by the Manager, Seattle John P. Piccola, Jr., telephone +44 1292 675207; fax +44
ACO, to make those findings. To be
approved, the repair method, modification Acting Manager, Transport Airplane 1292 675704; email RApublications@
deviation, or alteration deviation must meet Directorate, Aircraft Certification Service. baesystems.com; Internet http://
the certification basis of the airplane, and the [FR Doc. 2016–29678 Filed 12–30–16; 8:45 am] www.baesystems.com/Businesses/
approval must specifically refer to this AD. BILLING CODE 4910–13–P RegionalAircraft/index.htm. You may
(4) Except as required by paragraph (h) of view this referenced service information
this AD: For service information that at the FAA, Transport Airplane
contains steps that are labeled as Required Directorate, 1601 Lind Avenue SW.,
sradovich on DSK3GMQ082PROD with RULES

for Compliance (RC), the provisions of Renton, WA. For information on the
paragraphs (k)(4)(i) and (k)(4)(ii) apply.
availability of this material at the FAA,
(i) The steps labeled as RC, including
substeps under an RC step and any figures call 425–227–1221. It is also available
identified in an RC step, must be done to on the Internet at http://
comply with the AD. If a step or sub-step is www.regulations.gov by searching for
labeled ‘‘RC Exempt,’’ then the RC and locating Docket No. FAA–2016–
requirement is removed from that step or 0457.

VerDate Sep<11>2014 22:11 Dec 30, 2016 Jkt 241001 PO 00000 Frm 00003 Fmt 4700 Sfmt 4700 E:\FR\FM\03JAR1.SGM 03JAR1
 8 Federal Register / Vol. 82, No. 1 / Tuesday, January 3, 2017 / Rules and Regulations

Examining the AD Docket condition for all BAE Systems (Operations) Limited Jetstream Series
You may examine the AD docket on (Operations) Limited Model 4101 4100 Structural Repair Manual (SRM),
the Internet at http:// airplanes. The MCAI states: Volume 1, Revision 32, dated October
www.regulations.gov by searching for During an investigation of a fuel leak on 15, 2014, for damage criteria and repair
and locating Docket No. FAA–2016– the rear spar of a Jetstream 4100 aeroplane, instructions. We have revised this final
0457; or in person at the Docket 4 cracks were found between Ribs 6 and 7 rule to refer to Chapter 57 of the SRM
Management Facility between 9 a.m. (immediately inboard of the inboard engine instead of Subject 57–00–00.
and 5 p.m., Monday through Friday, rib). The cracks initiated at adjacent fastener
bores in the rear spar upper boom, and Conclusion
except Federal holidays. The AD docket progressed downwards, diagonally, into the
contains this AD, the regulatory We reviewed the available data and
rear spar web. determined that air safety and the
evaluation, any comments received, and These cracks, if not detected and corrected,
other information. The address for the public interest require adopting this AD
could propagate to a critical length, affecting
Docket Office (telephone 800–647–5527) the structural integrity of the area, possibly
as proposed, except for minor editorial
is Docket Management Facility, U.S. resulting in a fuel tank rupture with changes. We have determined that these
Department of Transportation, Docket consequent damage to the aeroplane and minor changes:
Operations, M–30, West Building injury to occupants. • Are consistent with the intent that
Ground Floor, Room W12–140, 1200 Prompted by these findings, EASA issued was proposed in the NPRM for
New Jersey Avenue SE., Washington, AD 2011–0096 [which corresponds to FAA correcting the unsafe condition; and
AD 2012–11–15, Amendment 39–17079 (77 • Do not add any additional burden
DC 20590. FR 36127, June 18, 2012)] to require a one- upon the public than was already
FOR FURTHER INFORMATION CONTACT: time [detailed] inspection [for cracks, proposed in the NPRM.
Todd Thompson, Aerospace Engineer, corrosion, and other defects] of the rear face
International Branch, ANM–116, of the wing rear spar and the Related Service Information Under 1
Transport Airplane Directorate, FAA, accomplishment of applicable corrective CFR Part 51
1601 Lind Avenue SW., Renton, WA actions [i.e., repair], depending on findings.
Initial analysis of the event did not lead to BAE Systems (Operations) Limited
98057–3356; telephone 425–227–1175; has issued Alert Service Bulletin J41–
the conclusion that the cracking was fatigue
fax 425–227–1149. related, therefore [EASA] AD 2011–0096 did A57–029, Revision 3, dated April 8,
SUPPLEMENTARY INFORMATION: not require repetitive inspections. 2014. The service information describes
Discussion Since that [EASA] AD [2011–0096] was detailed inspections for cracks,
issued, the results of the technical analysis corrosion, and other defects of the rear
We issued a notice of proposed confirmed that the cracks were due to fatigue, face of the wing rear spars.
rulemaking (NPRM) to amend 14 CFR with no indication of any other crack BAE Systems (Operations) Limited
part 39 to supersede AD 2012–11–15, initiation mechanism (e.g. stress corrosion). also has issued Chapter 57, Wings, of
Amendment 39–17079 (77 FR 36127, In addition, further similar in-service events
have been reported. During investigation of
the Jetstream Series 4100 SRM, Volume
June 18, 2012) (‘‘AD 2012–11–15’’). AD 1, Publication Ref. No. (Transmittal No.)
2012–11–15 applied to all BAE Systems those events, further metallurgical analysis
indicated that the crack initiation and SA 4–4100/SRM/400, Revision 32,
(Operations) Limited Model 4101 propagation are indeed fatigue driven and dated October 15, 2014. Among other
airplanes. The NPRM published in the occur at the same location. actions, Chapter 57 describes damage
Federal Register on January 21, 2016 To address this unsafe condition, a review criteria and procedures for repairing the
(81 FR 3350) (‘‘the NPRM’’). The NPRM of the inspection interval was undertaken wing structure.
was prompted by new reports of based on the cracks from both aeroplanes and This service information is reasonably
cracking found in the wing rear spar and BAE Systems (Operations) Ltd issued Service available because the interested parties
technical analysis results, which Bulletin (SB) J41–A57–029 Revision 3 in
order to reduce the inspection interval of the
have access to it through their normal
confirmed that the crack initiation and course of business or by the means
propagation are due to fatigue, with no wing rear spar from 2 000 flight cycles (FC)
to 1 600 FC. identified in the ADDRESSES section.
indication of any other crack initiation For the reasons described above, this
mechanism (e.g., stress corrosion). The Costs of Compliance
[EASA] AD supersedes [EASA] AD 2011–
NPRM proposed to require a one-time 0096, without retaining its requirements, We estimate that this AD affects 15
detailed inspection for cracks, introduces repetitive inspections and, airplanes of U.S. registry.
corrosion, and other defects of the rear depending on findings, requires the We also estimate that it takes up to 25
face of the wing rear spar, and repair if accomplishments of applicable corrective work-hours per product to comply with
necessary. The NPRM also proposed to action(s) [i.e., repair]. the basic requirements of this AD. The
require repetitive detailed inspections, You may examine the MCAI in the average labor rate is $85 per work-hour.
and repair if necessary. We are issuing AD docket on the Internet at http:// Based on these figures, we estimate the
this AD to detect and correct cracking in www.regulations.gov by searching for cost of this AD on U.S. operators to be
the wing rear spar, which could and locating Docket No. FAA–2016– up to $31,875, or up to $2,125 per
propagate to a critical length, possibly 0457. product.
affecting the structural integrity of the We have received no definitive data
area and resulting in a fuel tank rupture, Comments that enables us to provide a cost
with consequent damage to the airplane We gave the public the opportunity to estimate for the on-condition actions
and possible injury to its occupants. participate in developing this AD. We (repairing cracks, corrosion, and defects)
The European Aviation Safety Agency received no comments on the NPRM or specified in this AD.
sradovich on DSK3GMQ082PROD with RULES

(EASA), which is the Technical Agent on the determination of the cost to the
for the Member States of the European Authority for This Rulemaking
public.
Union, has issued EASA Airworthiness Title 49 of the United States Code
Directive 2015–0100, dated June 3, 2015 Explanation of Change in This AD specifies the FAA’s authority to issue
(referred to after this as the Mandatory The NPRM incorrectly referred to rules on aviation safety. Subtitle I,
Continuing Airworthiness Information, Subject 57–00–00, Wings General, of section 106, describes the authority of
or ‘‘the MCAI’’), to correct an unsafe Chapter 57, Wings, of the BAE Systems the FAA Administrator. ‘‘Subtitle VII:

VerDate Sep<11>2014 22:11 Dec 30, 2016 Jkt 241001 PO 00000 Frm 00004 Fmt 4700 Sfmt 4700 E:\FR\FM\03JAR1.SGM 03JAR1
 Federal Register / Vol. 82, No. 1 / Tuesday, January 3, 2017 / Rules and Regulations 9

Aviation Programs,’’ describes in more 2016–25–25 Bombardier: Amendment 39– (h) Repair Does Not Constitute Terminating
detail the scope of the Agency’s 18751; Docket No. FAA–2016–0457; Action Except for Certain Repairs
authority. Directorate Identifier 2015–NM–084–AD. Accomplishment of a repair as required by
We are issuing this rulemaking under (a) Effective Date paragraphs (g)(1) and (g)(2) of this AD, does
the authority described in ‘‘Subtitle VII, not constitute terminating action for the
This AD is effective February 7, 2017.
repetitive inspections required by paragraph
Part A, Subpart III, Section 44701:
(b) Affected ADs (g) of this AD, unless the approved repair
General requirements.’’ Under that required by paragraph (g)(2) of this AD states
section, Congress charges the FAA with This AD replaces AD 2012–11–15,
Amendment 39–17079 (77 FR 36127, June otherwise (e.g., the approved repair states the
promoting safe flight of civil aircraft in repair terminates the inspections for the
18, 2012) (‘‘AD 2012–11–15’’).
air commerce by prescribing regulations repaired area only).
for practices, methods, and procedures (c) Applicability
(i) Other FAA AD Provisions
the Administrator finds necessary for This AD applies to BAE (Operations)
safety in air commerce. This regulation Limited Model 4101 airplanes, certificated in The following provisions also apply to this
any category, all models and all serial AD:
is within the scope of that authority (1) Alternative Methods of Compliance
because it addresses an unsafe condition numbers.
(AMOCs): The Manager, International
that is likely to exist or develop on (d) Subject Branch, ANM–116, Transport Airplane
products identified in this rulemaking Air Transport Association (ATA) of Directorate, FAA, has the authority to
action. America Code 57, Wings. approve AMOCs for this AD, if requested
using the procedures found in 14 CFR 39.19.
Regulatory Findings (e) Reason In accordance with 14 CFR 39.19, send your
We determined that this AD will not This AD was prompted by new reports of request to your principal inspector or local
cracking found in the wing rear spar and Flight Standards District Office, as
have federalism implications under
technical analysis results, which confirmed appropriate. If sending information directly
Executive Order 13132. This AD will that the crack initiation and propagation are to the International Branch, send it to ATTN:
not have a substantial direct effect on due to fatigue, with no indication of any Todd Thompson, Aerospace Engineer,
the States, on the relationship between other crack initiation mechanism (e.g., stress International Branch, ANM–116, Transport
the national government and the States, corrosion). We are issuing this AD to detect Airplane Directorate, FAA, 1601 Lind
or on the distribution of power and and correct cracking in the wing rear spar, Avenue SW., Renton, WA 98057–3356;
responsibilities among the various which could propagate to a critical length, telephone 425–227–1175; fax 425–227–1149.
levels of government. possibly affecting the structural integrity of Information may be emailed to: 9-ANM-116-
the area and resulting in a fuel tank rupture, AMOC-REQUESTS@faa.gov. Before using
For the reasons discussed above, I with consequent damage to the airplane and any approved AMOC, notify your appropriate
certify that this AD: possible injury to its occupants. principal inspector, or lacking a principal
1. Is not a ‘‘significant regulatory inspector, the manager of the local flight
(f) Compliance
action’’ under Executive Order 12866; standards district office/certificate holding
2. Is not a ‘‘significant rule’’ under the Comply with this AD within the district office. The AMOC approval letter
compliance times specified, unless already must specifically reference this AD.
DOT Regulatory Policies and Procedures done.
(44 FR 11034, February 26, 1979); (2) Contacting the Manufacturer: As of the
3. Will not affect intrastate aviation in (g) Repetitive Inspections and Repair effective date of this AD, for any requirement
in this AD to obtain corrective actions from
Alaska; and Within 30 days after the effective date of
a manufacturer, the action must be
4. Will not have a significant this AD, or within 1,600 flight cycles since
the most recent detailed inspection was done accomplished using a method approved by
economic impact, positive or negative, the Manager, International Branch, ANM–
as specified in BAE Systems Alert Service
on a substantial number of small entities Bulletin J41–A57–029, whichever occurs 116, Transport Airplane Directorate, FAA; or
under the criteria of the Regulatory later: Do a detailed inspection for cracks, the EASA; or BAE Systems (Operations)
Flexibility Act. corrosion, and other defects (defects include Limited’s EASA DOA. If approved by the
scratches, dents, holes, damage to fastener DOA, the approval must include the DOA-
List of Subjects in 14 CFR Part 39 holes, or damage to surface protection and authorized signature.
Air transportation, Aircraft, Aviation finish) of the rear face of the wing rear spars, (j) Related Information
safety, Incorporation by reference, in accordance with the Accomplishment
Instructions of BAE Systems Alert Service Refer to Mandatory Continuing
Safety. Airworthiness Information (MCAI) EASA
Bulletin J41–A57–029, Revision 3, dated
Adoption of the Amendment April 8, 2014. Repeat the inspection Airworthiness Directive 2015–0100, dated
thereafter at intervals not to exceed 1,600 June 3, 2015, for related information. This
Accordingly, under the authority flight cycles. MCAI may be found in the AD docket on the
delegated to me by the Administrator, (1) If any cracking, corrosion, or other Internet at http://www.regulations.gov by
the FAA amends 14 CFR part 39 as defect is found within the criteria defined in searching for and locating Docket No. FAA–
follows: Chapter 57, Wings, of the Jetstream Series 2016–0457.
4100 Structural Repair Manual (SRM), (k) Material Incorporated by Reference
PART 39—AIRWORTHINESS Volume 1, Publication Ref. No. (Transmittal
No.) SA 4–4100/SRM/400, Revision 32, dated (1) The Director of the Federal Register
DIRECTIVES approved the incorporation by reference
October 15, 2014 (‘‘Chapter 57 of the SRM’’):
Before further flight, repair the affected area, (IBR) of the service information listed in this
■ 1. The authority citation for part 39 paragraph under 5 U.S.C. 552(a) and 1 CFR
in accordance with the repair instructions of
continues to read as follows: Chapter 57 of the SRM. part 51.
Authority: 49 U.S.C. 106(g), 40113, 44701. (2) If any cracking, corrosion, or other (2) You must use this service information
sradovich on DSK3GMQ082PROD with RULES

defect is found exceeding the criteria defined as applicable to do the actions required by
§ 39.13 [Amended] in Chapter 57 of the SRM: Before further this AD, unless this AD specifies otherwise.
flight, repair using a method approved by the (i) BAE Systems Alert Service Bulletin J41–
■ 2. The FAA amends § 39.13 by Manager, International Branch, ANM–116, A57–029, Revision 3, dated April 8, 2014.
removing Airworthiness Directive (AD) Transport Airplane Directorate, FAA; or the (ii) Chapter 57, Wings, of the BAE Systems
2012–11–15, Amendment 39–17079 (77 European Aviation Safety Agency (EASA); or (Operations) Limited Jetstream Series 4100
FR 36127, June 18, 2012), and adding BAE Systems (Operations) Limited’s EASA Structural Repair Manual, Volume 1,
the following new AD: Design Organization Approval (DOA). Publication Ref. No. (Transmittal No.) SA 4–

VerDate Sep<11>2014 22:11 Dec 30, 2016 Jkt 241001 PO 00000 Frm 00005 Fmt 4700 Sfmt 4700 E:\FR\FM\03JAR1.SGM 03JAR1
 10 Federal Register / Vol. 82, No. 1 / Tuesday, January 3, 2017 / Rules and Regulations

4100/SRM/400, Revision 32, dated October structure for excess tape or incorrect 2D15 (Regional Jet Series 705) airplanes,
15, 2014. tape installation, and corrective actions Model CL–600–2D24 (Regional Jet
(3) For service information identified in if necessary. We are issuing this AD to Series 900) airplanes, and Model CL–
this AD, contact BAE Systems (Operations)
address the unsafe condition on these 600–2E25 (Regional Jet Series 1000)
Limited, Customer Information Department,
Prestwick International Airport, Ayrshire, products. airplanes. The NPRM published in the
KA9 2RW, Scotland, United Kingdom; DATES: This AD is effective February 7, Federal Register on July 28, 2016 (81 FR
telephone +44 1292 675207; fax +44 1292 2017. 49577) (‘‘the NPRM’’). The NPRM was
675704; email RApublications@ The Director of the Federal Register prompted by a determination that the
baesystems.com; Internet http:// approved the incorporation by reference protective polyurethane tapes applied to
www.baesystems.com/Businesses/ the upper surfaces of the aluminum and
RegionalAircraft/index.htm.
of a certain publication listed in this AD
as of February 7, 2017. titanium floor structural members may
(4) You may view this service information
ADDRESSES: For service information not be trimmed properly, and on some
at the FAA, Transport Airplane Directorate,
1601 Lind Avenue SW., Renton, WA. For identified in this final rule, contact places may overhang the profiles of the
information on the availability of this Bombardier, Inc., 400 Côte-Vertu Road floor structural parts. Subsequent tests
material at the FAA, call 425–227–1221. West, Dorval, Québec H4S 1Y9, Canada; revealed that the overhanging pieces of
(5) You may view this service information Widebody Customer Response Center tapes that are not bonded to the
that is incorporated by reference at the structure do not meet the flammability
National Archives and Records
North America toll-free telephone 1–
866–538–1247 or direct-dial telephone: requirements and may allow fire
Administration (NARA). For information on propagation below the floor structure.
the availability of this material at NARA, call 1–514–855–2999; fax: 514–855–7401;
email: ac.yul@aero.bombardier.com; The NPRM proposed to require an
202–741–6030, or go to: http://
www.archives.gov/federal-register/cfr/ibr- Internet: http://www.bombardier.com. inspection of the polyurethane
locations.html. You may view this referenced service protective tapes installed on the floor
information at the FAA, Transport structure for excess tape or incorrect
Issued in Renton, Washington, on
Airplane Directorate, 1601 Lind Avenue tape installation, and corrective actions
December 6, 2016.
SW., Renton, WA. For information on if necessary. We are issuing this AD to
Dionne Palermo,
the availability of this material at the detect and correct overhanging pieces of
Acting Manager, Transport Airplane protective polyurethane tapes, which
Directorate, Aircraft Certification Service. FAA, call 425–227–1221. It is also
available on the Internet at http:// are not bonded to the structure and do
[FR Doc. 2016–30412 Filed 12–30–16; 8:45 am] not meet the flammability requirements;
www.regulations.gov by searching for
BILLING CODE 4910–13–P
and locating Docket No. FAA–2016– this condition may allow fire
8180. propagation below the floor structure.
Transport Canada Civil Aviation
DEPARTMENT OF TRANSPORTATION Examining the AD Docket (TCCA), which is the aviation authority
Federal Aviation Administration You may examine the AD docket on for Canada, has issued Canadian AD
the Internet at http:// CF–2016–14, dated May 18, 2016
14 CFR Part 39 www.regulations.gov by searching for (referred to after this as the Mandatory
and locating Docket No. FAA–2016– Continuing Airworthiness Information,
[Docket No. FAA–2016–8180; Directorate 8180; or in person at the Docket or ‘‘the MCAI’’), to correct an unsafe
Identifier 2016–NM–083–AD; Amendment Management Facility between 9 a.m. condition for certain Bombardier, Inc.
39–18760; AD 2016–26–02]
and 5 p.m., Monday through Friday, Model CL–600–2C10 (Regional Jet
RIN 2120–AA64 except Federal holidays. The AD docket Series 700, 701, & 702) airplanes, Model
contains this AD, the regulatory CL–600–2D15 (Regional Jet Series 705)
Airworthiness Directives; Bombardier, evaluation, any comments received, and airplanes, Model CL–600–2D24
Inc. Airplanes other information. The street address for (Regional Jet Series 900) airplanes, and
AGENCY: Federal Aviation the Docket Office (telephone: 800–647– Model CL–600–2E25 (Regional Jet Series
Administration (FAA), Department of 5527) is Docket Management Facility, 1000) airplanes. The MCAI states:
Transportation (DOT). U.S. Department of Transportation, An inspection revealed that the protective
ACTION: Final rule.
Docket Operations, M–30, West polyurethane tapes applied to the upper
Building Ground Floor, Room W12–140, surfaces of the aluminum and titanium floor
SUMMARY: We are adopting a new 1200 New Jersey Avenue SE., structural members installed on CRJ 700/900/
airworthiness directive (AD) for certain Washington, DC 20590. 1000 aeroplanes may not be trimmed
Bombardier, Inc. Model CL–600–2C10 FOR FURTHER INFORMATION CONTACT:
properly and on some places may overhang
(Regional Jet Series 700, 701, & 702) the profiles of the floor structural parts.
Fabio Buttitta, Aerospace Engineer, Subsequent tests revealed that the
airplanes, Model CL–600–2D15 Airframe and Mechanical Systems overhanging pieces of tapes which are not
(Regional Jet Series 705) airplanes, Branch, ANE–171, FAA, New York bonded to the structure, do not meet the
Model CL–600–2D24 (Regional Jet Aircraft Certification Office (ACO), 1600 flammability requirements. If not corrected,
Series 900) airplanes, and Model CL– Stewart Avenue, Suite 410, Westbury, this condition may allow fire propagation
600–2E25 (Regional Jet Series 1000) NY 11590; telephone: 516–228–7303; below the floor structure.
airplanes. This AD was prompted by a fax: 516–794–5531. This [Canadian] AD was issued to mandate
determination that the protective the [detailed] inspection and removal of any
SUPPLEMENTARY INFORMATION:
polyurethane tapes applied to the upper excessive pieces of overhanging tape [or
sradovich on DSK3GMQ082PROD with RULES

surfaces of the aluminum and titanium Discussion replacing incorrectly installed tape] found on
the floor structure.
floor structural members may overhang We issued a notice of proposed
the profiles of the floor structural parts rulemaking (NPRM) to amend 14 CFR You may examine the MCAI in the
and may allow fire propagation below part 39 by adding an AD that would AD docket on the Internet at http://
the floor structure. This AD requires an apply to certain Bombardier, Inc. Model www.regulations.gov by searching for
inspection of the polyurethane CL–600–2C10 (Regional Jet Series 700, and locating Docket No. FAA–2016–
protective tapes installed on the floor 701, & 702) airplanes, Model CL–600– 8180.

VerDate Sep<11>2014 22:11 Dec 30, 2016 Jkt 241001 PO 00000 Frm 00006 Fmt 4700 Sfmt 4700 E:\FR\FM\03JAR1.SGM 03JAR1