Service Bulletin No.

:
Service ERT-SB-1820
www.eirtechaviation.ie
Tel: +353 61 471 800
e-Mail: info@etas.ie
Bulletin(EASA.21J.452)
Issue: 8 Sheet 1 of 21

Service Bulletin Title: A320 LF-ULD Installation

Aircraft Applicability: A320 Series

Description: This Change installs a DK180 low frequency

underwater locator device in the Cargo Bay of an
A320 / A319 aircraft.

Written:

Technical Check:

Office of Airworthiness:

The technical content of this document is approved under the authority of DOA ref. EASA.21J.452.
© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Issue 6
 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 2 of 21

Document Issue Record

Issue Date Changes WRT CHK OoA

1 15 Feb 2019 Initial issue. SD CA TWM

§2 MSNs 7767, 7797 & 7886 added
to Group 2 applicability (Ref. Build
Standard ERT/1292-100-02).
§8 Added materials for Group 2 A/C.
§10.1 Airbus Mod 159277 added.
2 28 Feb 2019 §10.2 ERT/1292-100, ERT/1292-201, GI BR TWM
ERT/1292-600, AMS/1292-001 &
MMELS/1292-001 up-issued from Iss.
1 to Iss. 2.
§13 Instructions for Group 2 added.
§13.3 added.
Document updated throughout to
include Group 3 (Build Standard
ERT/1292-100-03) and group
3 02 Apr 2019 separation. CA JC TWM
Section 10.1 updated to reflect
corrected references.
MSN 4376 added to Group 1
effectivity.
4 18 April 2019 RM LOF TWM
Section 10.2 - AMS/1292-001 and
MMELS/1292-001 now at Issue 3.
§2 Build Standard ERT/1292-100-04
added. Air Arabia registered aircraft
previously listed in Build Standard
ERT/1292-100-02 moved to new
Build Standard ERT/1292-100-04.
5 01 May 2019 §1, 3, 7, 8, 9, 10 & 12 updated to JM BR TWM
Include Group 4 (Build Standard
ERT/1292-100-04).
§10.2 ERT/1292-100 up-issued from
Iss. 3 to Iss. 4.
§13.1, 13.2 & 13.5 Instructions for
Group 4 added.
MSN 4392 & 4414 added to Group 1.
6 13 Jun 2019 MSN 4376 moved from Group 4 to 1. RM BR TWM
Section 10.2 - AMS/1292-001 and
MMELS/1292-001 now at Issue 4.
Title page: Aircraft Applicability
changed to “A320 Series”.
MSN 3004 and 3050 added to Group
7 05 Aug 2019 1 effectivity. RM NC TWM
Section 10.2 - AMS/1292-001 and
MMELS/1292-001 now at Issue 5.
Issue of MPDS/1292-001 amended.

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 3 of 21

Document template updated to Issue

6.
§2 MSNs 4484 & 4519 added to
8 Group 1 applicability (Ref. Build
Standard ERT/1292-100-01).
§10.2 - AMS/1292-001 and
MMELS/1292-001 now at Issue 6.
This document is updated as a whole and not as individual pages.

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 4 of 21

1. SUBJECT
This Service Bulletin provides instructions to install a DK180 Low Frequency Underwater
Locator Device (LF-ULD), between FR56 and FR57 in the Aft Cargo Compartment, RH side,
of an A320 (Group 1-2 & 4) and between FR59 and FR60 in the Aft Cargo Compartment, RH
side, of an A319 (Group 3).

2. EFFECTIVITY
This SB is applicable to the following aircraft:

No A/C Type MSN Group

1 3004
A320-232
2 3050
3 4135
4 4349
5 4357
6 4376
7 4392
1 (Build Standard ERT/1292-100-01)
8 4414
9 4484
10 A320-214 4519
11 6689
12 6712
13 6871
14 6876
15 7767
16 7797 2 (Build Standard ERT/1292-100-02)
17 7886
18 A319-132 2032 3 (Build Standard ERT/1292-100-03)
19 3152
20 3246
21 4468
22 4524
23 4539
A320-214 4 (Build Standard ERT/1292-100-04)
24 4568
25 4806
26 4848
27 4890
28 4958

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 5 of 21

29 5017
30 5143
31 5206
32 5276
33 5307
34 5423
35 5452
36 5502
37 5576
38 5718
39 5772
40 5889
41 5903
42 5984
43 6000
44 6054
45 6080
46 6166
47 6176
48 6234
49 6293
50 6365
51 6430
52 6444
53 6481
54 6553
55 6665
56 6737
57 6942
58 7096
59 7226
60 7225
61 7315
62 7425
63 7614
64 6896

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 6 of 21

3. INTRODUCTION
This Service Bulletin provides instructions to install a DK180 Low Frequency Underwater
Locator Device (LF-ULD), between FR56 and FR57 in the Aft Cargo Compartment, RH side,
of an A320 (Group 1-2 & 4) and between FR59 and FR60 in the Aft Cargo Compartment, RH
side, of an A319 (Group 3).

4. AIRWORTHINESS APPROVAL BASIS

This Service Bulletin has been approved under the Eirtech Design Change number
ERT/CNG/1292.

5. COMPLIANCE
Eirtech Aviation recommends that this Service Bulletin be completed at the operators’
discretion.

6. CONCURRENT REQUIREMENTS
None.

7. MANPOWER
The table below shows an estimate of the task hours necessary to do this change for a single
aircraft. This estimate is for direct labour only, done by an experienced crew. The estimate
does not include lost time. Examples of lost time include:
• Time to adjust the workplace.
• Time to schedule the work.
• Time to inspect the work.
• Time to cure the materials.
• Time to make the parts.
• Time to find the tools.

Group 1-4:
No. of Task Elapsed
Task
Persons hours Hours
LF-ULD Installation 1 3.5 3.5
Total 3.5 3.5

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 7 of 21

8. PROVISIONING
8.1 Material Requirements
8.1.1 Parts supplied by Eirtech:
Group 1 & 4:

QTY Description Part Number Alternate P/N

1 LF–ULD INSTALLATION KIT ERT/1292-600-01 -

Group 2:

QTY Description Part Number Alternate P/N

1 LF–ULD INSTALLATION KIT ERT/1292-600-02 -

Group 3:

QTY Description Part Number Alternate P/N

1 LF–ULD INSTALLATION KIT ERT/1292-600-03 -

8.1.2 Parts supplied by the Customer:

Group 1 & 4:

Part Number /
QTY Description Alternate P/N
CML Reference
POLYSULFIDE SEALANT
AR 06AAC1 -
GENERAL PURPOSE
POLYSULFIDE SEALANT LOW
AR 06ACB1 -
DENSITY MULTI-PURPOSE
PRIMER EPOXY PAINT – TSA
AR ANODIZING CORROSION 04DEB2 -
INHIBITING STRUCTURE
COATING FLEXIBLE
AR 04QAB2 -
STRUCTURE
10 RIVET EN6081D4-48 OR EQUIVALENT

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 8 of 21

Group 2:

Part Number /
QTY Description Alternate P/N
CML Reference
PRIMER EPOXY PAINT – TSA
AR ANODIZING CORROSION 04DEB2 -
INHIBITING STRUCTURE
COATING FLEXIBLE
AR 04QAB2 -
STRUCTURE

Group 3:

Part Number /
QTY Description Alternate P/N
CML Reference
POLYSULFIDE SEALANT
AR 06AAC1 -
GENERAL PURPOSE
POLYSULFIDE SEALANT LOW
AR 06ACB1 -
DENSITY MULTI-PURPOSE
PRIMER EPOXY PAINT – TSA
AR ANODIZING CORROSION 04DEB2 -
INHIBITING STRUCTURE
COATING FLEXIBLE
AR 04QAB2 -
STRUCTURE
10 RIVET EN6081D4-48 OR EQUIVALENT

8.2 Special Tooling

No special tooling required.

9. WEIGHT & BALANCE

Group 1-2 & 4

CHANGE IN AIRCRAFT CHANGE IN AIRCRAFT

MOMENT ARM MOMENT
ITEM WEIGHT
(m)
(kg) (kg.m)
LF-ULD Installation +1.7 26.594 +45.2

Group 3

CHANGE IN AIRCRAFT CHANGE IN AIRCRAFT

MOMENT ARM MOMENT
ITEM WEIGHT
(m)
(kg) (kg.m)
LF-ULD Installation +1.7 24.345 +41.387

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 9 of 21

10. REFERENCES
10.1 Required Data Not Supplied with this Document
Group 1-2 & 4
➢ A320 AMM
➢ A320 SRM
➢ Airbus CML
➢ Airbus Mod 159277
➢ 80-T-34-3050
➢ Airbus PMS 01-06-12
➢ Dukane DK180 Technical Manual 03-TM-0064.

Group 3
➢ A319 AMM
➢ A319 SRM
➢ Airbus CML
➢ 80-T-34-3050
➢ Airbus PMS 01-06-12
➢ Dukane DK180 Technical Manual 03-TM-0064.

10.2 Data Supplied with this Document

DOCUMENT NO. ISSUE/REV TITLE Group

Drawing: General Arrangement: A320 1-4
ERT/1292-100 4
LF-ULD Installation
ERT/1292-201 2 Drawing: A320 LF-ULD Installation 1-2
ERT/1292-202 1 Drawing: A319 LF-ULD INSTALLATION 3
ERT/1292-600 3 Drawing: LF-ULD Installation Kit 1-4
Aircraft Manual Suplement: A320 LF- 1-2 & 4
AMS/1292-001 6
ULD Installation
Aircraft Manual Supplement: A320 LF- 3
AMS/1292-002 1
ULD Installation
MPDS/1292-001 1 Maintenance Planning Data Supplement 1-2 & 4
MPDS/1292-002 1 Maintenance Planning Data Supplement 3
Master Minimum Equipment List 1-2 & 4
MMELS/1292-001 6
Supplement
Master Minimum Equipment List 3
MMELS/1292-002 1
Supplement

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 10 of 21

10.3 Vendor Reference Data

None.

11. PUBLICATIONS AFFECTED

PUBLICATION CHAPTER/SECTION
AIPC 25-65
WBM 2
MMEL 25-65
AMM 25-65
MPD 25-65

12. INSTRUCTIONS FOR CONTINUED AIRWORTHINESS

A Maintenance Planning Data Supplement MPDS/1292-001 (Group 1-2 & 4) or MPDS/1292-
001 (Group 3) is included which captures the future planning and inspection requirements of
this unit. Aircraft Manual (AIPC & AMM) Supplement AMS/1292-001 (Group 1-2 & 4) or
AMS/1292-002 (Group 3) is introduced to detail the parts installed by this change and the
associated maintenance practices. Refer to Dukane Technical Manual 03-TM-0064 for ICA
which details inspection/maintenance practices for the DK180.
A Master Minimum Equipment List Supplement MMELS/1292-001 (Group 1-2 & 4) or
MMELS/1292-002 (Group 3) is provided with this Change to permit operation with the LF-
ULD inoperative.

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 11 of 21

13. ACCOMPLISHMENT INSTRUCTIONS

Group ALL
Notes:
1. It is recommended that this SB be read entirely prior to accomplishment.
2. To accomplish this SB gain access to the affected areas of the aircraft by opening
or removing appropriate doors and panels.
3. Refer to associated Maintenance Manual Supplements as required.
4. Ensure all parts being installed have an appropriate Form 1 or equivalent, and an
applicable burn test Certificate.
5. Obey all warnings and cautions given in the specified manual sections.
6. The accomplishment instructions described in section 13 of this SB show the
recommended sequence of steps. The sequence of these steps can be changed.
7. For the identification of zones, refer to AMM 06-20-00.
8. For the Frame (FR) identification, refer to AMM 06-31-53.
9. For the identification of access panels, refer to AMM 06-41-53.
10. For the specification of Material application codes given in this Service Bulletin,
refer to the aircraft CML.
11. Remove and install fasteners in accordance with SRM 51-42-00.
12. Get fastener hole diameters and drill data in accordance with SRM 51-44-00.
13. Apply sealant in accordance with SRM 51-24-00.
14. Renew the protective finish in accordance with SRM 51-75-12.
15. For the electrical bonding components with rivets, refer to ESPM 20-51-20 and
AMM Task 20-28-00-912-802-A.

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 12 of 21

Group ALL
CAUTION:
Always obey the precautions that follow to keep electrical wiring in a satisfactory
condition (electrically and mechanically serviceable). When you do maintenance
work, repairs or modifications, always keep electrical wiring, components and the
work area as clean as possible. To do this:
• Put protection, such as plastic sheeting, cloths, etc., as necessary on wiring
and components
• Regularly remove all shavings, unwanted material and
Other contamination
These precautions will decrease the risk of contamination and damage to the
electrical wiring installation. If there is contamination, refer to ESPM 20-55-00.

13.1 Preparation – All Groups MECH INSP

13.1.1 Make sure that the aircraft is electrically grounded, refer

to AMM Task 12-34-24-869-002-A.

13.1.2 GROUP 1-2 & 4 ONLY

Remove the sidewall Panel 152HW from the aft cargo
compartment, between Frame 56 and Frame 58 (RH
side), refer to AMM Task 25-55-11-000-003-A.

13.1.3 GROUP 3 ONLY

Remove the sidewall Panel 162AW from the aft cargo
compartment, between Frame 59 and Frame 62 (RH
side), refer to AMM Task 25-55-12-000-003-A.

13.2 Work Instructions – Group 1 & 4 ONLY MECH INSP

13.2.1 With reference to Drawing ERT/1292-201, temporarily

put in position:
LF-ULD BRACKET #2, P/N ERT/1292-511-02.

13.2.2 Drill five holes on the STGR29RH to align with the

existing holes on the bracket, in accordance with the
dimensions given in Drawing ERT/1292-201.
Note: Deburr the holes and clean the work area.
Note: Apply Polysulfide Sealant General Purpose
(ref: Section 8.1.2) to the interface of the structure and
the new bracket.

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 13 of 21

13.2 Work Instructions – Group 1 & 4 ONLY MECH INSP

13.2.3 IAW Drawing ERT/1292-201, attach the bracket (P/N

ERT/1292-511-02) to the STGR29RH with the specified
rivets.
Note: Apply Polysulfide Sealant Low Density Multi-
Purpose (ref: Section 8.1.2) around the edges of the
bracket, and the rivets.
Note: Refer to SRM 51-24-00, SRM 51-42-00, SRM 51-
44-00 and SRM 51-75-12 if required.

13.2.4 Perform the electrical bonding of the bracket (P/N

ERT/1292-511-02), refer to ESPM 20-51-20 and AMM
Task 20-28-00-912-802-A.

13.2.5 If required, renew the protective finish with:

• Primer Epoxy Paint – TSA Anodizing Corrosion
Inhibiting Structure (ref: Section 8.1.2)
• Coating Flexible Structure (ref: Section 8.1.2)

13.2.6 With reference to Drawing ERT/1292-201, temporarily

put in position:
LF-ULD BRACKET #1, P/N ERT/1292-511-01

13.2.7 Drill five holes on the STGR31RH to align with the

existing holes on the bracket, in accordance with the
dimensions given in Drawing ERT/1292-201.
Note: Deburr the holes and clean the work area.
Note: Apply Polysulfide Sealant General Purpose
(ref: Section 8.1.2) to the interface of the structure and
the new bracket.
13.2.8 IAW Drawing ERT/1292-201, attach the bracket (P/N
ERT/1292-511-01) to the STGR31RH with the specified
rivets.
Note: Apply Polysulfide Sealant Low Density Multi-
Purpose (ref: Section 8.1.2) around the edges of the
bracket, and the rivets.
Note: Refer to SRM 51-24-00, SRM 51-42-00, SRM 51-
44-00 and SRM 51-75-12 if required.

13.2.9 If required, renew the protective finish with:

• Primer Epoxy Paint – TSA Anodizing Corrosion
Inhibiting Structure (ref: Section 8.1.2)
• Coating Flexible Structure (ref: Section 8.1.2)

13.2.10 IAW Drawing ERT/1292-201, install the LF-ULD

mounting plate assembly (P/N ERT/1292-501-01),
between Frame 56 and Frame 57, using screws and
washers, per ERT/1292-201. Torque per 80-T-34-3050.

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 14 of 21

13.2 Work Instructions – Group 1 & 4 ONLY MECH INSP

13.2.11 Insert LF-ULD into cradle IAW Dukane Technical

Manual 03-TM-0064.

13.2.12 Install LF-ULD & Cradle onto the ERT/1292-501-01

mounting plate using screws and washers, per
ERT/1292-201. Torque per 80-T-34-3050.
Note: Perform the electrical bonding of the LF-ULD.
Refer to ESPM 20-51-20 and AMM Task 20-28-00-912-
802-A.

13.2.13 Install grounding wire (P/N ERT/1292-512-05) IAW

ESPM Chapter 20 guidelines, with ref to ERT/1292-
201, to the LF-ULD mounting plate and bracket, with
screws and washers, per ERT/1292-201. Torque per
80-T-34-3050.
Note: Perform the electrical bonding of the grounding
wire (P/N ERT/1292-512-05), with screws, refer to
ESPM 20-51-20 and AMM Task 20-28-00-912-802-A.

13.2.14 Perform a conductivity check to ensure that the bonding

path resistance is below the permitted values IAW AMM
Task 20-28-00-869-002-A and the ESPM.

13.2.15 Ensure the placards (ERT/1201-511-01) are bonded to

the mounting plate, IAW Drawing ERT/1292-201.

13.2.16 If required, modify the insulation blanket between

Frame 56 and Frame 57 in the Aft Cargo Compartment,
RH side, IAW AMM Task 25-80-00-200-001-A.
Ensure adequate area is provided for above the LF-
ULD to allow unobstructed access for quick removal.
Note: For the general removal of the insulation
blankets, refer to AMM Task 25-80-00-000-001-A.
Note: For the general installation of the insulation
blankets, refer to AMM Task 25-80-00-400-001-A.
Note: For the re-identification of parts, refer to
PMS 01-06-12.
13.2.17 If required, carry out the following marking on the
insulation blanket with indelible ink, IAW PMS 01-06-12:
‘‘This part has been modified in accordance with Eirtech
Service Bulletin ERT-SB-1820’’

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 15 of 21

13.3 Work Instructions – Group 2 ONLY MECH INSP

13.3.1 With reference to Drawing ERT/1292-201, ensure that

Airbus Mod 159277 has been accomplished on the A/C.
Ensure that the installed bracketry is electrically bonded
to the aircraft frame IAW ESPM 20-51-20. Refer to
AMM Task 20-28-00-802-A if bonding is required.
If required, renew the protective finish of the installed
brackets with:
• Primer Epoxy Paint – TSA Anodizing Corrosion
Inhibiting Structure (ref: Section 8.1.2)
• Coating Flexible Structure (ref: Section 8.1.2)
13.3.2 IAW Drawing ERT/1292-201, install the LF-ULD
mounting plate assembly (P/N ERT/1292-501-01),
between Frame 56 and Frame 57, using screws and
washers, per ERT/1292-201. Torque per 80-T-34-3050.

13.3.3 Insert LF-ULD into cradle IAW Dukane Technical

Manual 03-TM-0064.

13.3.4 Install LF-ULD & Cradle onto the ERT/1292-501-01

mounting plate using screws and washers, per
ERT/1292-201. Torque per 80-T-34-3050.
Note: Perform the electrical bonding of the LF-ULD.
Refer to ESPM 20-51-20 and AMM Task 20-28-00-912-
802-A.

13.3.5 Install grounding wire (P/N ERT/1292-512-05) IAW

ESPM Chapter 20 guidelines, with ref to ERT/1292-
201, to the LF-ULD mounting plate and bracket, with
screws and washers, per ERT/1292-201. Torque per
80-T-34-3050.
Note: Perform the electrical bonding of the grounding
wire (P/N ERT/1292-512-05), with screws, refer to
ESPM 20-51-20 and AMM Task 20-28-00-912-802-A.

13.3.6 Perform a conductivity check to ensure that the bonding

path resistance is below the permitted values IAW AMM
Task 20-28-00-869-002-A and the ESPM.

13.3.7 Ensure the placards (ERT/1201-511-01) are bonded to

the mounting plate, IAW Drawing ERT/1292-201.

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 16 of 21

13.3 Work Instructions – Group 2 ONLY MECH INSP

13.3.8 If required, modify the insulation blanket between

Frame 56 and Frame 57 in the Aft Cargo Compartment,
RH side, IAW AMM Task 25-80-00-200-001-A.
Ensure adequate area is provided for above the LF-
ULD to allow unobstructed access for quick removal.
Note: For the general removal of the insulation
blankets, refer to AMM Task 25-80-00-000-001-A.
Note: For the general installation of the insulation
blankets, refer to AMM Task 25-80-00-400-001-A.
Note: For the re-identification of parts, refer to
PMS 01-06-12.
13.3.9 If required, carry out the following marking on the
insulation blanket with indelible ink, IAW PMS 01-06-12:
‘‘This part has been modified in accordance with Eirtech
Service Bulletin ERT-SB-1820’’

13.4 Work Instructions – Group 3 ONLY MECH INSP

13.4.1 With reference to Drawing ERT/1292-202, temporarily

put in position:
LF-ULD BRACKET #2, P/N ERT/1292-511-02.

13.4.2 Drill five holes on the STGR29RH to align with the

existing holes on the bracket, in accordance with the
dimensions given in Drawing ERT/1292-202.
Note: Deburr the holes and clean the work area.
Note: Apply Polysulfide Sealant General Purpose
(ref: Section 8.1.2) to the interface of the structure and
the new bracket.
13.4.3 IAW Drawing ERT/1292-202, attach the bracket (P/N
ERT/1292-511-02) to the STGR29RH with the specified
rivets.
Note: Apply Polysulfide Sealant Low Density Multi-
Purpose (ref: Section 8.1.2) around the edges of the
bracket, and the rivets.
Note: Refer to SRM 51-24-00, SRM 51-42-00, SRM 51-
44-00 and SRM 51-75-12 if required.

13.4.4 Perform the electrical bonding of the bracket (P/N

ERT/1292-511-02), refer to ESPM 20-51-20 and AMM
Task 20-28-00-912-802-A.

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 17 of 21

13.4 Work Instructions – Group 3 ONLY MECH INSP

13.4.5 If required, renew the protective finish with:

• Primer Epoxy Paint – TSA Anodizing Corrosion
Inhibiting Structure (ref: Section 8.1.2)
• Coating Flexible Structure (ref: Section 8.1.2)
NOTE: Follow the appropriate AMM procedure if
applicable, standard practices, and refer to the
appropriate technical data sheet & material application
instructions.

13.4.6 With reference to Drawing ERT/1292-202, temporarily

put in position:
A319 LF-ULD BRACKET #1, P/N ERT/1292-513-01

13.4.7 Drill five holes on the STGR31RH to align with the

existing holes on the bracket, in accordance with the
dimensions given in Drawing ERT/1292-202.
Note: Deburr the holes and clean the work area.
Note: Apply Polysulfide Sealant General Purpose
(ref: Section 8.1.2) to the interface of the structure and
the new bracket.
13.4.8 IAW Drawing ERT/1292-202, attach the bracket (P/N
ERT/1292-513-01) to the STGR31RH with the specified
rivets.
Note: Apply Polysulfide Sealant Low Density Multi-
Purpose (ref: Section 8.1.2) around the edges of the
bracket, and the rivets.
Note: Refer to SRM 51-24-00, SRM 51-42-00, SRM 51-
44-00 and SRM 51-75-12 if required.

13.4.9 If required, renew the protective finish with:

• Primer Epoxy Paint – TSA Anodizing Corrosion
Inhibiting Structure (ref: Section 8.1.2)
• Coating Flexible Structure (ref: Section 8.1.2)
NOTE: Follow the appropriate AMM procedure if
applicable, standard practices, and refer to the
appropriate technical data sheet & material application
instructions.

13.4.10 IAW Drawing ERT/1292-202, install the LF-ULD

mounting plate assembly (P/N ERT/1292-501-01),
between Frame 59 and Frame 60, using screws and
washers, per ERT/1292-202. Torque per 80-T-34-3050.

13.4.11 Insert LF-ULD into cradle IAW Dukane Technical

Manual 03-TM-0064.

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 18 of 21

13.4 Work Instructions – Group 3 ONLY MECH INSP

13.4.12 Install LF-ULD & Cradle onto the ERT/1292-501-01

mounting plate using screws and washers, per
ERT/1292-202. Torque per 80-T-34-3050.
Note: Perform the electrical bonding of the LF-ULD.
Refer to ESPM 20-51-20 and AMM Task 20-28-00-912-
802-A.

13.4.13 Install grounding wire (P/N ERT/1292-512-05) IAW

ESPM Chapter 20 guidelines, with ref to ERT/1292-
202, to the LF-ULD mounting plate and bracket, with
screws and washers, per ERT/1292-202. Torque per
80-T-34-3050.
Note: Perform the electrical bonding of the grounding
wire (P/N ERT/1292-512-05), with screws, refer to
ESPM 20-51-20 and AMM Task 20-28-00-912-802-A.

13.4.14 Perform a conductivity check to ensure that the bonding

path resistance is below the permitted values IAW AMM
Task 20-28-00-869-002-A and the ESPM.

13.4.15 Ensure the placards (ERT/1201-511-01) are bonded to

the mounting plate, IAW Drawing ERT/1292-202.

13.4.16 If required, modify the insulation blanket between

Frame 59 and Frame 60 in the Aft Cargo Compartment,
RH side, IAW AMM Task 25-80-00-200-001-A.
Ensure adequate area is provided for above the LF-
ULD to allow unobstructed access for quick removal.
Note: For the general removal of the insulation
blankets, refer to AMM Task 25-80-00-000-001-A.
Note: For the general installation of the insulation
blankets, refer to AMM Task 25-80-00-400-001-A.
Note: For the re-identification of parts, refer to
PMS 01-06-12.
13.4.17 If required, carry out the following marking on the
insulation blanket with indelible ink, IAW PMS 01-06-12:
‘‘This part has been modified in accordance with Eirtech
Service Bulletin ERT-SB-1820’’

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 19 of 21

13.5 Close-up – All Groups MECH INSP

13.5.1 Make sure that the work areas are clean and clear of
tools and other items of equipment.

13.5.2 GROUP 1-2 & 4 ONLY

Install the sidewall Panel 152HW in the aft cargo
compartment between Frame 56 and Frame 58 (RH
side), refer to AMM Task 25-55-11-400-003-A.

13.5.3 GROUP 3 ONLY

Install the sidewall Panel 162AW in the aft cargo
compartment between Frame 59 and Frame 62 (RH
side), refer to AMM Task 25-55-12-400-003-A.

13.5.4 Return the aircraft to serviceable condition.

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 20 of 21

Embodiment Issue/Occurrence Report

In the event of any difficulty with the embodiment of this Service Bulletin, or operational
incident or occurrence resulting from it’s embodiment, contact the Eirtech Design
Organisation by telephone on 00 353 61 471 800. Following the telephone call, this sheet
should be used to describe the problem, issue or incident.
Please provide the following details

Aircraft Registration: Aircraft MSN: Component Part Number:

Submitted by (Name): Organisation: Department:

Telephone: e-Mail or Fax:

Description of Problem, Issue, Incident or Occurrence:

Requested Design Change (if any):

Attach additional sheets as necessary.

The completed form should be sent by e-mail attachment to ERT_Eng@etas.ie

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6

 Service Bulletin Number:
Service Bulletin ERT-SB-1820
(EASA.21J.452)
Issue: 8 Sheet 21 of 21

SERVICE BULLETIN REPORT SHEET

The Report Sheet is provided for the purpose of communicating to the Design Organisation any errors
or suggested improvements arising during accomplishment of this Service Bulletin.

Please rate on a scale of 1 to 4, with 4 being the highest score: 1 2 3 4

- Quality rating of this Design Change Work Order
- Quality rating of the Accomplishment Instructions
- Quality rating of the Illustrations / Drawings (if applicable)
- Ease of understanding

If you have had problems or issues raised in the accomplishment of this Service Bulletin please
indicate below the area(s) and give a brief description of the issue(s).

Planning Material Instructions

Effectivity Kit content Clarity of instructions

Description List of materials Embodiment instructions
References Tooling Test
Publication Re-identification Close-Up
Illustrations
Description of Problem or Issue:

Reporters Information Please return the completed form to:

Head of Design
Name: Eirtech Aviation Services Limited.
e-mail to: ERT_Eng@etas.ie
Title: Fax: +353 61 471 998
Address: 154 Shannon Industrial Estate
Organisation: Shannon
County Clare,
Ireland

© 2019 Eirtech Aviation Services Ltd. Form ERT/TEMP/030 Iss 6