# BAE Systems Inspection Service Bulletin ISB.57-072: Revision 3

- Rights: © BAE Systems. Filed by the FAA in regulations.gov docket FAA-2016-5465; AD 2016-16-11 incorporates this document by reference. Not covered by OpenAirDocs’ CC0 dedication.
- Document: [BAE Systems Inspection Service Bulletin ISB.57-072](https://openairdocs.org/service-documents/bae-systems/isb57-072.md)
- Title as filed: ISB.57-072R03
- Pages: 24
- PDF: https://openairdocs.org/files/sha256/85/3f/853fe8bdd0a6871d8afd11f62146e2fb10469850799bcbe6cc972e65c06aa8da
- Page: https://openairdocs.org/service-documents/bae-systems/isb57-072/file/853fe8bdd0a6

## Text

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### Page 1 (OCR)

BAE SYSTEMS (Operations) Limited, Prestwick International Airport, Ayrshire,
KA9  2RW, Scotland.
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
IRANSMITTAL FOR INSPECTION SERVICE BULLETIN REVISION
SERVICE BULLETIN No.ISB.57-072
DATE: 22-FEB-2008
TITLE: WING - INSPECTION OF WING FIXED LEADING EDGE AND FRONT SPAR
STRUCTURE, LEFT AND RIGHT WING.
REVISION: 3  DATE: 31-AUG-2010
ACTION:
FOR THOSE OPERATORS THAT HAVE PREVIOUSLY RECEIVED THIS BULLETIN:
(1) Remove and destroy service bulletin complete Revision No. 2.
(2) Insert service bulletin complete at Revision No. 3.
OVERVIEW OF CHANGE:
Deletion of cautionary note.
INCORPORATION OF THIS REVISION DOES NOT REQUIRE REWORK OF THE
MODIFICATION(S) EMBODIED BY EARLIER REVISIONS OF THIS INSPECTION
SERVICE BULLETIN.
DETAILS OF CHANGE:
Pare 2.C. (2). Cautionary note deleted regarding the need tor dummy
weights (if engines have been removed) to be used when the fixed
leading edges are being removed from the wing.
Date: 22-FEB-2008  REVISION TRANSMITTAL SHEET
ISB.57-072
Revision: 3 31-AUG-2010  Page 1 of 2
Printed in England

### Page 2 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
TRANSMITTAL FOR INSPECTION SERVICE BULLETIN REVISION
SERVICE BULLETIN No.ISB.57-072
This Page Is Intentionally Left Blank.
Date: 22-FEB-2008  REVISION TRANSMITTAL SHEET
ISB.57-072
Revision: 3 31-AUG-2010  Page 2 of 2
Printed in England

### Page 3 (OCR)

BAE SYSTEMS (Operations) Limited, Prestwick International Airport, Ayrshire,
KA9  2RW, Scotland.
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
TITLE: WING - INSPECTION OF WING FIXED LEADING EDGE AND FRONT SPAR
STRUCTURE, LEFT AND RIGHT WING.
1. Planning information
A.Effectivity
(1) Aircraft
Aircraft affected by this inspection are defined below :-
ALL BAe 146-100, 200, 300 Series.
ALL BAe 146-301 Series.
ALL AVRO 146-RJ70, RJ85, RJ100 Series.
B.Reason
During the removal of the wing removable leading edge for an
unrelated repair, corrosion was found on the wing fixed leading
edge structure. Investigation has established that existing
scheduled structural inspections would not have detected the
corrosion or fatigue damage. Corrosion or fatigue damage could
result in a degradation of the structural integrity of the wing.
C. Description
(1)  Inspection for corrosion is done on the left and right wing
removable leading edge, the wing fixed leading edge structure
and attachments and the front spar front face.
(2)  There were previously two alternative inspection procedures,  Method 1 was a combination of a detailed visual inspection  i sual inspect ton 299.
(DVI) and a visual inspection (VI). Method 2 is a DVI.
(a) Method 1 has been deleted. Operators who accomplished
Method 1 at last inspection must carry out Method 2 at next
inspection as defined by Table 1 and para 1.D.
(b) Method 2. Stress jack and trestle the aircraft, then remove
the inboard, centre and outboard removable wing leading
edges and do a DVI.
(3) The existing fatigue  and environmental inspections in the
Maintenance Review Board Report and Maintenance Planning
Document, Corrosion Prevention and Control Programme and
Supplemental Structural Inspection Document will be
superseded by this inspection service bulletin when the
service bulletin is subject to EASA AD action as follows:
Date: 22-FEB-2008  ISB. 57-072
Revision: 3 31-AUG-2010  Page 1 of 22
Printed in England

### Page 4 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
(a) This inspection service bulletin supersedes the Maintenance
Review Board Report SSI tasks 57-20-101 and 57-20-102,
57-40-105 (MPD tasks 572001-DVI-10000-1,
S/<001-DVI-10000-2, 572002-DVI-10000-1 and
0(4005-DVI-10000-1).
(b) This inspection  service bulletin supersedes the Corrosion
Prevention and Control Programme task C57-520-03-00.
(c) This inspection  service bulletin supersedes the
Supplemental Structural Inspection Document (SSID),
reference SSID S57-40-105.
(4) There are optional corrosion protection tasks in the
inspection service bulletin as follows:
(a) Part A provides enhanced corrosion protection on the wing
fixed leading edge and front spar structure and attachments
by the application of a coating of material number 16-655
on all inspectable structure referred to in para.2.C Method
(b) Part B provides corrosion protection on the wing fixed
and front spar structure and attachments by
the application of a coating of material number 15-522 or
15-520 on all inspectable structure referred to in para.2.C
Method 2.
This inspection service bulletin is in 3  sections,  Method
2, Part A and Part B and affects the left and right wing as
follows:
Work for Method 2 comprises:-
Jack and trestle the aircraft.
- Remove the inboard, centre and outboard removable wing
Leading edges, and  do a DVI of the leading edge structure at
the following  locations: -
Removable wing leading edge rear diaphragm and attachment
Front spar front face.
- Wing fixed leading edge upper and lower skins.
- Wing fixed leading edge stiffeners and diaphragms.
- Wing fixed leading edge upper and lower spanwise
members/stiffeners and attachments.
- Install the inboard, centre and outboard removable wing
Leading edges.
Remove jacks and trestle.
- Do a function check.
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 2 of 22
Printed in England

### Page 5 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
- Complete and return Inspection Report Form.
Work for Part A comprises:-
- Apply enhanced corrosion protection.
NOTE: Part A is optional and can only be accomplished after a
DVI of the structure is done.
Work for Part B comprises:-
- Apply corrosion protection.
NOTE: Part B is optional and can only be accomplished after a
DVI of the structure is done.
D. Compliance
The technical content of this inspection service bulletin is the
subject of EASA AIRWORTHINESS DIRECTIVE consultation.
Compliance with this inspection service bulletin is to be achieved
as follows:
The initial fatigue and environmental inspection must be
accomplished as shown below:
(a) For aircraft less than 9  years since entry into service at
receipt of this inspection service bulletin, inspect the
wing fixed leading edge and front spar structure in
accordance with para.2.C Method 2 within 2 years from the
initial issue of this inspection service bulletin or before
the aircraft age reaches 9 years whichever is the latest.
OR
(b) For aircraft 9 years to 15 years since entry into service
at receipt of this inspection service bulletin, inspect the
wing fixed leading edge and front spar structure in
accordance with para.2.C Method 2 within 2 years from the
initial issue of this inspection service bulletin, or prior
to achieving 16 years from entry into service, which ever
NOTE: Operators of fleets containing 2 or more aircraft
between 14 years and 15 years since entry  into
service can inspect those aircraft within 2 years of
the initial issue date of this inspection service
bulletin providing the following  criteria are met
(all fractional aircraft quantities to be rounded
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 3 of 22
Printed in England

### Page 6 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
At least 50 percent of the operator's fleet between 14
years and 15 years since entry into service must be
inspected within 1 year of the initial issue date of
this inspection service bulletin.
No corrosion findings on any of the inspected aircraft
in the operator's fleet.
If at any time the two criteria above become
unachievable the initial inspection compliance under
this Note reverts to 16 years from entry into service.
OR
(c) For aircraft over 15 years since entry into service at
receipt of this inspection service bulletin, inspect the
wing fixed leading edge and front spar structure in
accordance with para.2.C Method 2 within 1 year from the
initial issue of this inspection service bulletin.
NOTE: Operators of fleets containing 4 or more aircraft
that have exceeded 15 years since entry into service
can inspect those aircraft within 2 years of the
initial issue date of this inspection service
bulletin providing the following criteria are met
(all fractional aircraft quantities to be rounded
up) : -
1  At least 50 percent of the operator's fleet over 15
years since entry into service including at least 50
percent of the oldest quartile must be inspected within
1 year of the initial issue date of this inspection
service bulletin.
(Oldest quartile describes the oldest 25 percent of the
operator's fleet over 15 years since entry into
service).
No corrosion findings on any of the inspected aircraft
in the operator's fleet.
If at any time the two criteria above become
unachievable the initial inspection compliance under
this Note reverts to 1 year  from the initial issue date
of this inspection service bulletin.
Operators who accomplished Method 1 at last inspection
do not require retrospective inspection action.
repeat fatigue and environmental inspections must
be accomplished in accordance with para.2.C Method 2 at the
intervals specified in Table 1 Where previously applied,
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 4 of 22
Printed in England

### Page 7 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
check the enhanced corrosion protection for flaking, cracking
and blistering. Re-apply the protection as required
accordance with para.2.D Part A.
Table 1.
Area of Inspection  Inspection Method  Repeat Fatigue and Environmental
inspection.
Part A Enhanced Corrosion Protection
has been done?
YES  NO
Inboard  Method 1 VI  Not Applicable  6 years or 36000
Flights
(whichever is
sooner) *
Inboard  Method 2 DVI  12 years or 36000  6 years or 36000
Flights (whichever  Flights
is sooner)  (whichever is
sooner)
Centre  Method 1 VI  Not Applicable  6 years or 36000
Flights
(whichever is
sooner) *
Centre  Method 2 DVI  12 years or 36000  6 years or 36000
Flights (whichever  Flights
is sooner)  (whichever is
sooner)
Outboard  Method 1 DVI  12 years or 36000  6 years or 36000
Flights (whichever  Flights
is sooner) #  (whichever is
sooner) *
Outboard  Method 2 DVI  12 years or 36000  6 years or 36000
Flights (whichever  Flights
is sooner)  (whichever is
sooner)
NOTE: * Method 2 (DVI) to be accomplished within 6 years or
36000 Flights (whichever is sooner) of accomplishment of
Method 1.
NOTE:  # Method 2 (DVI) to be accomplished within 12 years or
36000 Flights (whichever is sooner) of accomplishment of
Method 1
Date: 22-FEB-2008  ISB. 57-072
Revision: 3 31-AUG-2010  Page 5 of 22
Printed in England

### Page 8 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
E. ApprovaL
The technical information contained in this document has been
approved under the authority of EASA Part 21 Approval No.
EASA.21J.047.
F. Manpower
To inspect as defined in para. 2 - 12 man-hours.
This man-hour estimate does not include time for gaining access
to, or cleaning the inspection area or application of optional
enhanced corrosion protection, or corrosion protection or the
functional tests of the wing leading edge systems.
G.Materials - cost and availability
None.
H.Tooling - cost and availability
None.
I.Weight and balance
No effect.
J. References
Aircraft Maintenance Manual AMM Chapters 07-00-00, 12-00-00,
20-00-00 and 57-41-00.
Structural Repair Manual SRM Chapter 51-00-00 .
K.Publications affected
Maintenance Review Board Report (MRBR).
Maintenance Planning Document (MPD).
Corrosion Prevention and Control Programme (CPCP).
Supplemental Structural Inspection Document (SSID).
NOTE: The MRBR, MPD, CPCP and SSID will be reviewed for inclusion
of scheduled tasks. When the inspection requirements and
procedures of this inspection service bulletin are published
in the MRBR, MPD, CPCP and SSID this inspection service
bulletin will be cancelled or revised to refer to the MRBR,
MPD, CPCP and SSID as the EASA agreed published sources.
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 6 of 22
Printed in England

### Page 9 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
L.Electrical load data
Not applicable.
M.Software accomplishment summary
No effect.
N.Aircraft Noise Levels
No effect.
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 7 of 22
Printed in England

### Page 10 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
This Page Is Intentionally Left Blank.
Date:  22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 8 of 22
Printed in England

### Page 11 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
2.Accomplishment instructions
A. General
(1) The following abbreviations are used within this document :-
AMM - Aircraft Maintenance Manual.
SRM - Structural Repair Manual.
VI - Visual Inspection.
DVI - Detailed Visual Inspection.
(2) Observe all WARNINGS and CAUTIONS appearing in the Aircraft
Maintenance Manual (AMM) referred to in this inspection
service bulletin.
(3) Care is to be taken to make certain all swarf is collected
and removed from aircraft.
B. Preparation
(1) Refer to AMM 12-00-00. Remove all aircraft electrical power.
(2) Display a warning notice in the flight compartment 'DO NOT
APPLY ELECTRICAL POWER TO AIRCRAFT'
C.Inspection
Method 2 - The following instructions are applicable to the left
wing (right wing similar) and are as follows:
(1) Refer to AMM Chapter 07-00-00. Jack and trestle the aircraft.
(2) Refer to AMM Chapter 57-41-00. Remove the inboard, centre and
outboard wing leading edges.
(3) Refer to Drawing 1, Drawing 2 and Drawing 3.
(4) Do a DVI of the inboard, centre  and outer removable wing
leading edges rear diaphragm and attachment angles.
(5) Do a DVI of the inboard, centre and outer front spar front
face.
(6) Do a DVI of the inboard, centre and outer wing fixed leading
edge upper and lower skins.
(7) Do a DVI of the inboard and centre wing fixed leading edge
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 9 of 22
Printed in England

### Page 12 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
stiffeners and diaphragms.
(8) Do a DVI of the inboard and centre wing fixed leading edge
upper and lower spanwise members and attachments.
(9) Do a DVI of the outboard wing fixed leading edge stiffeners.
(10) Do a DVI of the outboard wing fixed leading edge upper
spanwise stiffeners and attachments.
(11) Refer to Drawing 4. Complete an Inspection  Report Form for
each of the inspections done at para.2.C.(4) through
para.2.C. (10) and return by fax, mail or e-mail to BAE
Systems attached to the Inspection Report (Appendix 1).
NOTE: It is NOT necessary to duplicate the defect information
from the DVI Inspection MMM, Report Form into the
Findings section of the Inspection Report (Appendix 1).
(12) Rectify any defects found before further flight to an
approved BAE SYSTEMS repair scheme. Spanwise
members/stiffeners may be repaired in accordance with RIL
HC572H9527, issue 1 or later.
(13) Refer to SRM Chapter 51-00-00. Reprotect the structure as
required.
(14) Apply the enhanced protection (if required) in accordance
with para.2.D Part A or corrosion protection (if required) in
accordance with para.2.E Part B.
NOTE: Embodiment of the enhanced corrosion protection in
para. 2.D Part A increases the repeat inspection period
for the environmental inspection referred to in
para.1.D. (2).
Embodiment of the corrosion protection in para.2.E Part  It in at Bart
B does not affect the environmental repeat inspection
(15) Make certain work area is clean, and clear of tools and
miscellaneous equipment.
(16) Refer to AMM Chapter 57-41-00. Install the inner, centre and
outer wing leading edges left and right.
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 10 of 22
Printed in England

### Page 13 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
D. Reprotection
Part A - Enhanced corrosion protection.
Refer to and AMM Chapter 20-00-00. If no defects are found
during the DVI's done in accordance with para.2.C Method 2,
or following rectification of any defects done in accordance
with para.2.C. (12) apply a coat of material number 16-655 on
all structure  subject to a DVI referred to in para.2.C as
applicable.
NOTE: 1. Apply material number 16-655 in accordance with
manufacturers instructions.
NOTE: 2. Only remove the pipe clips necessary to allow
application of the enhanced corrosion protection coating
to the upper diaphragm/stiffeners.
E.Reprotection
Part B - Corrosion protection.
Refer to and AMM Chapter 20-00-00. If no defects are found
during the DVI's done in accordance with para.2.C Method 2,
or following rectification of any defects done in accordance
with para.2.C. (12) apply a coat of material number 15-522 or
15-520 on  all structure subject to a DVI referred to in
para. 2. C as applicable.
NOTE: 1. Apply material number 15-522 or 15-520 in accordance
with manufacturers instructions.
NOTE: 2. Only remove the pipe clips necessary to allow
application of the  corrosion protection coating to the
upper diaphragm/stiffeners.
F.Test
(1)  Refer to AMM Chapter 57-41-00. Do a function test of the wing
leading edge systems.
G. Close up
(1)  Make certain work area is clean, and clear of tools and
miscellaneous equipment.
(2)  Refer to AMM Chapter 07-00-00 and para.2.C. Remove jack and
trestle from aircraft.
(3)  Remove the warning notice in the flight compartment 'DO NOT
APPLY ELECTRICAL POWER TO AIRCRAFT'.
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 11 of 22
Printed in England

### Page 14 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
H.Documentation
(1)  Record the accomplishment of this inspection in the aircraft
technical records
(2)  Record the accomplishment (if done) of the enhanced corrosion
protection in accordance with para.2.D Part A or the
corrosion protection in accordance with para.2.E Part B in
the aircraft technical records.
I.Terminating action
None .
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 12 of 22
Printed in England

### Page 15 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
INBOARD
REMOVABLE
LEADING EDGE  CENTRE
REMOVABLE
LEADING EDGE  OUTBOARD
REMOVABLE
LEADING EDGE
FWD
REAR
DIAPHRAGM
TYPICAL
N5707205
REMOVABLE WING LEADING EDGE ALL.
DRAWING 1.
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 13 of 22
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### Page 16 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
UPPER
RIB  SPANWISE
MEMBER
RIB  ANGLE
7A
UPPER
DIAPHRAGM
RIB
8
sago  RIB
_ 8A
STIFFENER
ATTACHMENT
LOWER
SPANWISE
MEMBER
LOWER
DIAPHRAGM
FRONT SPAR
FRONT FACE
BOTTOM
SKIN
ACCESS
DOOR WAY
/c
TYPICAL
INSPECT ALL AREAS
WITHIN THE STRUCTURE
INCLUDING INSIDE FACE OF
UPPER/LOWER SPANWISE MEMBERS
TYPICAL
N5707204
AREA OF INSPECTION INNER AND CENTRE WING FIXED LEADING EDGE AND FRONT
SPAR STRUCTURE ONLY.
DRAWING 2.
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 14 of 22
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### Page 17 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
TOP SKIN
FRONT SPAR
FRONT FACE
STIFFENER
ANGLE
SPANWISE
STIFFENER  BRACKET
SPANWISE
STIFFENER
CHANNEL
DOUBLER
AND PACKER
TYPICAL
INSPECT ALL AREAS
WITHIN THE STRUCTURE
INCLUDING INSIDE FACE OF
SPANWISE STIFFENERS
E
TYPICAL
N5707206
AREA OF INSPECTION OUTER WING FIXED LEADING EDGE AND FRONT SPAR
STRUCTURE ONLY.
DRAWING 3.
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 15 of 22
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### Page 18 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
INSPECTION REPORT FORM
Title  INSPECTION OF WING FIXED LEADING EDGE AND  Date
FRONT SPAR STRUCTURE. LEFT AND RIGHT WING.
Service Bulletin No.  Operator  Aircraft Reg. No  Aircraft Const. No
ISB57-072
All series
LEFT SIDE FINDING: ALL STRUCTURE AND ATTACHMENTS
AREA OF
Tick box as
INSPECTION  appropriate
DVI
INBOARD
CENTRE
OUTBOARD
PART A. ENHANCED PROTECTION APPLIED?  YES  NO
RIGHT SIDE FINDING: ALL STRUCTURE AND ATTACHMENTS
AREA OF  Tick box as
INSPECTION  appropriate
DVI
INBOARD
CENTRE
OUTBOARD
PART A. ENHANCED PROTECTION APPLIED?  YES L  NO
BAE SYSTEMS USE ONLY. Customer Technical Support instructions
N5707207
INSPECTION REPORTING FORM.
DRAWING 4.
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 16 of 22
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### Page 19 (OCR)

BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
3. Material information
A Materials
(1) None.
(2) Materials required (Operator supplied).
DESCRIPTION  MATERIAL NUMBER  QTY
(REF. AMM 20-20-00 )
Paintlow VOC Polyurethane  16-655  A/R
Dinitrol AV15  15-522  A/R
Cor-Ban 35  15-520  A/R
NOTE: A/R denotes as required.
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 17 of 22
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BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
This Page Is Intentionally Left Blank.
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 18 of 22
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BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
APPENDIX 1
1.INSPECTION REPORT
A.Complete and return this form as detailed
OPERATOR:
AIRCRAFT REGISTRATION:
CONSTRUCTORS NUMBER:
FLIGHT HOURS:
LANDINGS:
DATE INSPECTION PERFORMED:
FINDINGS:
To:  Customer Technical Support (Building 37),
BAE SYSTEMS (Operations) Limited,
Prestwick International Airport,
Ayrshire,
KA9 2RW,
Scotland.
Fax + 44 (0) 1292 675432
e-mail raengliaisonabaesystems.com
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 19 of 22
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BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
This Page Is Intentionally Left Blank.
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 20 of 22
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BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
APPENDIX 2
1.CONTINUED AIRWORTHINESS INSTRUCTIONS
(1)  There are no continued airworthiness instructions applicable
to this service bulletin.
A.Scheduled Maintenance
(1) None.
B. Removal Procedures
(1) None.
C. Installation Procedures
(1) None.
D. Test Procedures
(1) None.
E. Troubleshooting
(1) None.
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 21 of 22
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BAE SYSTEMS
INSPECTION SERVICE BULLETIN
BAe 146 SERIES/AVRO 146-RJ SERIES AIRCRAFT
This Page Is Intentionally Left Blank.
Date: 22-FEB-2008  ISB.57-072
Revision: 3 31-AUG-2010  Page 22 of 22
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