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Airworthiness Directive

• Federal Register Information

) Header lnfonnatlon

• Preamble lnfonnatlon

• Regulatory lnfonnation

- m i l t o n Standard: Amendment 39-9420. Docket 95-ANE-32• . - _ m e n d m e n t 39-9062.

~ : Hamilton Standard Models 14RF-9, 14RF-19, 14RF-21, a n d - 1·4SF-7, 14SF-11, 14SFL11, 14SF-15, 14SF-17,
14SF-19, 14SF-23; and 6/5500/F propelers installed on but not limited to Embraer EMB-120 and EM~120RT, SAAB-SCANIA SF340B; Aerospatiate
ATR42-100, ATR42-300, ATR42-320, ATR72, ATR72-21 0; OeHavllland DHC-8-100 series, DHC-8-300, Construcclonas AeronautJcas SA (CASA) CN-
235 and CN-235-100; Canada1r CL215T and CL415, and Bnttsh Aerospace ATP airplanes. NOTE This airworthiness directive (AD) applies to each
propeller identrfied in the preceding appllcabtlity provision, regardless of whether It has been modified, altered, or repaired in the area subject to the
requirements of thts AD. For propeDers that have been modified, aHered, or repaired so that the performance of the requirements of this AD is
affected, the owner/operator must use the authonty provided in paragraph (e) to request approval from the Federal Aviation Adm1rnstralion (FAA). This
approval may address either no acbon, If the current configuration ehmmates the unsafe condJbon, or different acbons necessary to address the
unsafe condrhon descnbed m this AD. Such a request should include an assessment of the effect of the changed configuration on the unsafe condrbon
addressed by ttus AD. In no case does the presence of any modlflcabon, alteration, or repair remove any propeller from the apphcabdity of this AD.

Compliance Required as indicated, unless accomplished previously.

To prevent the inabihty to control the propeller blade angle due to tooth wear In the propeller control urnt (PCU) servo ballscrew internal spline (BIS)
assembly, accomplish the following.

(a) Inspect the PCU seNO BIS assembly for tooth wear 1n accordance with the Accomphshmenl lnstrucbons of the following Hamilton Standard Alert
SeMce Bulletins {ASB), all dated May 5, 1995, as applicable. No.14RF-9-61-A53, Rev1s1on 7, No. 14RF-19-61-A25, Revision 6, No. 14RF-21-61-
A38, Revision 6, No. 247F-61-A3, Revision 5, No. 14SF-61-A59, Revision 6, and No. 6/5500/F-61-A11, Revision 6, as follows

(1) For a PCU with unknown time m service (TIS), and unknown TIS since the last mspecbon, on the effective date of this /J.D, and that does not have
a baDscrew qu1H damper installed, inspect within 200 hours TIS after the effective date of this AD.

(2) For a PCU with 1,800 or more hours TIS or unknown TIS on the effective date of this AD, and either has not been inspected, or has been
inspected more lhan 500 hours pnor to the effecttve date of this AD, in accordance with the applicable Hamilton Standard ASB hsted m paragraph (a)
of this AD, and that does not have a ballscrew quill damper installed; Inspect within 200 hours TIS after the effective date of this AD.

(3) For a PCU with 1,800 or more hours TIS or unknown TIS on lhe effective date of this AD, and that has been Inspected within the prevrous 500
hours TIS in accordancewrth the applicable Hamilton Standard ASS listed in paragraph (a) of this AD, and that does not have a ballscrew quill
damper installed. inspect wtthm 500 hours TIS smce the last inspection m accordance with the applicable Hamilton Standard ASB hsted m paragraph
(a) ofth;sAD.

(4) For a PCU wtth less than 1,800 hours TIS on the effective date of this AD, and that does not have a ballscrew qum damper Installed, inspect pnor
to accumulating 1,800 hours TIS, or wlthm 300 hours TIS after the effecbve date of this AD, whichever occurs later.

(5) For a PCU that has a ballscrew quill damper Installed In production or m accordance with the following applicable Hamilton Standard Service
Bulletins (SB}, all dated September 27, 1994, or previous revisions No. 14SF-61-67, Rev1s1on 2, No. 14RF-9-61-61, Revision 1, No 14RF-19-61-29,
Revision 2, No. 14RF--21-61-48, Revision 2, No. 247F-61-6, ReVJsmn 2, and No. 615500/F-61-19, Rev,s10n 2; 1nspectwtthin 2,500 hours TIS smce
1nstallabon of the ballscrew qu~I damper.

(6) Thereafter, inspect at intervals described as follows

(i) For propellers that have a ballscrew quill damper installed m production or In accordance with the applicable Hamilton Standard SB listed 1n
paragraph (a)(5) of this AD, or preV1ous revisions, inspect at mtervals not to exceed 2,500 hours TIS Since the last mspectlon required by this AD.

(11) For propellers that do not have a ballscrew quill damper instaled in production or m acoordance With the appl1cal:ie Hamilton Standard SB listed in
paragraph (a)(5} of this AD, inspect at intervals not to exceed 500 hours TIS since the last inspection required by this AD.

(7) If PCU serro BIS teeth are worn beyond the hmmi specified m the Accomplishment Instructions of the applicable ASB's listed m paragraph (a) of
this AD, pnor to further flight, replace the PCU With a serviceable assembly in accordance with the Ac.compfishment Instructions of the applicable
ASB's hsted In paragraph (a} of this AD, and thereafter inspect m accordance with paragraphs (aX5) and (a)(6) of this AD.

(b) Prior to June 30, 1998, Install a Secondary Drive Quill (SDQ) In accordance with the Accompfishment Instructions of lhe following applicable
Hamilton Standard $B's, all Revision 1, all dated May 17, 1995 No. 14SF-61-82; No.14RF-9-61-76; No.14RF-1~1-0; No. 14RF-21-61-62; No.
247F-61-13, and No. 6/5500/F-61-33.
(c) lnstaHatlon of an SDQ m accordance with applicable SB's listed in paragraph (b) of this AD consbtutes termlnaUng action to the repettUve
rnspections required by paragraph (a) of this AD.

(d) With an SDQ Installed, perform an mrbal torque check mspecbon of the pnmary ballscrew quDI at 5,000 hours TIS smce installation of the SDQ, and
thereafter at intervals not to exceed 5,000 hours TIS since last inspection, and remove from seNlce and replace with a servlceable part, ff necessary,
m accordance with the following applicable Hamilton Standard SB's, en RevaS1on 2, dated June 22, 1995 No. 14SF-61-81, No. 14RF-EM31-75, No.
14RF-1!H:i1-41, No 14RF-21-61-60, No. 247F-61-12, and No 615500/F-61-32.

(e) An alternative meth&fOTcompl,anci or adJustmem OT tfle compliance time that proviaes-art accaptable--revernf safety may be used If approved by--
the Manager, Boston Alraaft Certrficabon Office. The request should be forwarded through an appropriate FAA Pnnc1pal Maintenance Inspector, who
may add comments and then send rt to the Manager, Boston Aircraft Certification Office NOTE. Information concerning the existence of approved
alternative method of comphance wrth this AO, If any, may be obtained from the Boston Aircraft Cerbficahon Office.

(f) sp8:c1al fhght permits may be issued m 8CCorclance with sections 21-:-197 and 21.199 oftne Federal Aviation Regulations (14 CFR 21.197 and
21.199) to operate the aircraft to a locat10n where the requirements of this AD can be accomplished.

(g) The acbons re u1red b this AD shall be done m accordance with the following Hamilton Standard service documents
1joocument No. IJPages ,!Revision IDate
..
.]. December 9, 1993
September 27, 1994
December 9, 1993

September 27, 1994

!Total pages: 14.

SB No. 14RF-21-61-48 !September 27, 1994 ~
riginal December 9, 1993
September 27, 1994
l!December 9, 1993
l!May 6, 1994
!Total pages: 14.
SB No. 247F-61-6 Se !ember 27, 1994
December 9, 1993
September 27, 1994
December 9, 1993
Ma 6 1994
!Total pages: 14.
!SB No. 6/5500/F-61-19

May 17, 1995

May 17, 1995

!Total pages: 33.

!SB No. 14SF-61-81
!Total pages: 12.
jsa No. 14RF-9-61-75 June 22, 1995
!Total pages: 10.
l!June 22, 1995

June 22, 1995

This Incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Coples
may be obtained from Hamilton Standard, One Hamilton Road, Windsor Locks, CT 06096-1010. Copies may be inspected at the FAA, New England
Region. Office of the Assistant Chief Counsel, 12 New England Executive Park, Burlington, MA; or at the Office of the Federal Register, 800 North
Capitol Street, NW., suite 700, Washington, DC.

(h) This amendment becomes effective on November 24, 1995 as to ail compliance paragraphs except paragraph (b) of this AD.

- --+- -- ---ffi-+l'lis-amendmet1Hleeemes-effeetive-on-May 6, 1996 as-to-eomplianee-paragraph{e}-oHhis-A·i:l>-- - -- - -- - - -- -- - - - - -- -

• Footer Information

•Comments
 RECOR D OF PROPE LLER IMODS I
SPECI AL INSPE CTION S 15/11 AND MODIF ICATIO NS
AIRWO RTHIN ESS DIREC TIVES IA/DI, SERVI CE BULLE TINS 15/BJ. LICl!:NCE
SIGNATURI !:
DETAILS o, WORK o• INSPECT ION Pl!:"l"O!ll!, 11!:0 NUM91!R
s/1, MD
MOOS .
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DAT!!:
.
Tills propeller 1s comphant with the followtng AD's, ASB's and SB's
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/ AD/ASB RECORD
I I :
I I / AD Number ADIA$B Date ASBNymb er Comphanc:c Descnptton
/ / !
I I J
/ 93-06-06 July 6, 1993 14SF-61-A61 ShtpPCd w1thP/N 814829-1 I
I
I
I
I
/
. 94-09-06 s..,..,..,.. 14SF-6l-A73 Inspection ofTaperbore I I

I
I
I
I
I
I
/
/
/ 95-0S-03 Superseded 14SF-61-A73
14SF-61-A74RI
14SF-61-A75

14SF-61-A88
-D -
Cork has been remo\'M and

lnspccbon ofTaperbo re I
I
I
I
I
'
/

I I / 95-18-06 Sup,""""1
/
14Sf-6l-A8 9 I
I I
/ 96-01-01 Superseded 14SF-61-A93 Cork has been removed and
/ 14SF-61-A95 taperborc IS $ho(pccncd I
I /
96-08-02 May 9,1996 14SF-61-A92Rl Blades above up senaJ # I
I /
/
14SF-61-A93
14SF-61-A9S
882038 I
I
I

•
I / "None" Jan 18,1996 14SF-61-A96 Blades above up senal # I
I I 14SF-61-A94 885751 ,1
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 RECORD OF PROPELL ER
SPECIAL INSPECTI ONS (S'I) AND MODIFICA TIONS (MODSI
AIRWORT HINESS DIRECTIV ES (A/DI, SERVICE BULLETIN S IS/Bl, LICENCE
OR INSPECTION PERFORMED SIGNATURE NUMBER
OF WORK
A/ O, S/ B, S/ I t.!ODS DETA!L.5

I
711J·-.-
DATE"'

Th.is propeller 1s compliant With the following AD's, ASB's and SB's I
~
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1I I AD/ASB RECORD -1
1
/I / I /
7
/ I
/ I
- /
/
TI - - - - - // AP Number ADIASBDate ASBNumher C.Omphancc DescrmllOn
7
IT - T, - - -- - 7 93-06-06 July 6, 1993 14SF-61-A61 Shipped with PIN 814829-1 7
I / 94-09-06 Supcrceded 14SF-61-A73 Inspection ofTaperbore I
I
Coric has been removed and
7 I / I /
95-05-03 Superseded 14SF-61-A73
14SF-61-A74Rl tapeJbore 1s shotpeened I
/ 14SF-61-A75 I
7 I / I
/ I / I / 9S-18-06 Supcrcedcd U-SF-61-A88 Inspection ofTapcrbore I
/ I / I / 14Sf-61-A89 7
/ I / I / 96-01-01 Supm«kd 14SF-61-A93 Cork bas been removed and 7
I / 14SF-61-A95 tapcrbore 1s shotpeened I
I /
-// - 1 1 - 96-08-02 May9,19% USF-61-A92RI Blades above up senal # I
14SF-61-A93 882038 I
l4SF-61-A95 ry
I / 14SF-6l-A96 Blades above up serial #
Jan 18,1996

I;5 z ~.-
885751
14SF-61-A94
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 AIRWORTHINESS DIRECTIVES (A/ DJ, SERVICE BULLETINS (S/BJ,
WORt< O R I NSPECT I ON PERFOR 1rr,t E.O S IG N ATURE
A / 0, S / 8, S / 1, MOOS DETAILS OF
DA T E

/ 1 4. Ftll. 1~

O7. JAN. 2002

/ 20.1«1. 21112

/ 2 0. MRZ. 21IIIZ
-
)

/ O8. JULI 2002

 RECORD OF PROPELLE R
~ AIRWORTH INESS DIRECTIVES (NDJ, SERVICE BULLETINS (SIB), 3
SPECIAL INSPECTIO NS (Sil) AND MODIFICAT IONS (MODS)
OAT e'
1...IC ll!: NCE
/ 06. SEP. 2Dl2 MU M Bl!R

'11 5. HOV. ZOOZ

111. APR. 201ll

, ..... ~

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