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Maintainability & Maintenance Engineering + Maintenance Planning & Services
XM33 TrainingXM33 Training
Structures Analysistructures Analysis
Practical exampleractical example SSD 52.41SSD 52.41
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MARCH 07XM33 Training - Structures analysis / Practical example Page 2AIRBUS
DEUTSCHLAND
GMBH.
Allrightsreserved.
Confid
entialandproprietarydocument.
THIS PAGE INTENTIONALLY LEFT BLANK
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Ref. XM33 - Scheduled Maintenance Programs / SEPT.05 Page :AIRBUSS.A.S.
Allrights
reserved.
Confidentialandproprietarydocu
ment.
This document must be used for training purposes only.
Under no circumstances
should this document be used as a reference.
It will not be updated.
This document and all information contained herein is the sole
property of AIRBUS S.A.S. No intellectual property rights are
granted by the delivery of this document or the disclosure of
its content. This document shall not be reproduced or
disclosed to a third party without the express written consent
of AIRBUS S.A.S. This document and its content shall not beused for any purpose other than that for which it is supplied.
The statements made herein do not constitute an offer. They
are based on the mentioned assumptions and are expressed
in good faith. Where the supporting grounds for these
statements are not shown, AIRBUS S.A.S. will be pleased to
explain the basis thereof.
AN EADS JOINT COMPANY
WITH BAE SYSTEMS
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MARCH 07XM33 Training - Structures analysis / Practical exampleAIRBUS
DE
UTSCHLAND
GMBH.
Allrightsreserved.
Confid
entialandproprietarydocument.
THIS PAGE INTENTIONALLY LEFT BLANK
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MSG-3 ANALYSIS
SIGNIFICANT
STRUCTUREDOSSIER
52.41
Avionics Compartment Access Door
Applicability: A380-800
Date: 26 APR 04
Issue: 2.0
AA338800
STR05
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Dossier: 52.41 Title:Avionics Compartment Access Door Applicability: A380-800 Date: 26 April 2004 Page: 1.1
A380 Maintenance Program Significant Structure Dossier List of Revisions
Issue Date Reason for Revision Approval
1.0 26 JAN 04 Original Issue
Company/Department/Name Signature Date
Prepared by: LATECOERE / Customer Service / Nicolas Soret
Checked by: A irbus / SEM2T2 / Frdric GasztowttApproved by: Airbus / SEM2T2 / Grard Echeveste
2.0 26 APR 04 Lining add in the access
TPS Type I specified in the mechanism area.
Prepared by: LATECOERE / Customer Service / Nicolas Soret
Checked by: A irbus / SEM2T2 / Frdric GasztowttApproved by: Airbus / SEM2T2 / Grard Echeveste
STR06
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Dossier: 52.41 Title:Access Doors Applicability: A380-800 Date: 26 April 04 Page: 2.1
A380 Maintenance Program Significant Structure Dossier List of Effective Pages
Page Description Applicability Date Page Description Applicability Date
0.1
1.1
2.1
3.1
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10
5.11
5.12
5.13
Cover Sheet
List Of Revision
List of Effective Pages
List of Effective SSI Analysis
Supporting Data Sheet
Supporting Data Sheet
Supporting Data Sheet
Supporting Data Sheet
Supporting Data Sheet
Supporting Data Sheet
Supporting Data Sheet
Supporting Data Sheet
Supporting Data Sheet
Supporting Data Sheet
Supporting Data Sheet
Supporting Data Sheet
Supporting Data Sheet
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
26 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
6.1
7.17.2
8.1
9.1
10.1
11.1
SSI Management List
SSI diagrams SheetSSI diagrams Sheet
SSI Requirements Summary Sheet
SSI Requirements Consolidation Sheet
MRBR Report Interface Sheet
Task Data Sheet
A380-800
A380-800A380-800
A380-800
A380-800
A380-800
A380-800
26 Apr 04
26 Apr 0426 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
26 Apr 04
STR07
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Dossier: 52.41 Title:Access Doors Applicability: A380-800 Date: 26 April 04 Page: 3.1
A380 Maintenance Program Significant Structure Dossier List of Effective SSI Analyses
SSI SSI Title Applicability Issue Date SSI SSI Title Applicability Issue Date
52.41.S001
52.41.S002
Avionics compartment access door skin,external surface
Avionics compartment access door,internal structure including door stopsfittings.
A380-800
A380-800
1.0
1.0
26 Apr 04
26 Apr 04
STR08
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A380 Maintenance Program Structures Supporting Data Sheet
Dossier: 52.41 Title:Access Doors Applicability: A380-800 Date:26 April 04 Page: 5.1
510 mm
UP
FWD
690mm
FR 12
FR 14
STR 59
STR 65
510 mm
UP
FWD
UP
FWD
690mm
FR 12
FR 14
STR 59
FR 12FR 12
FR 14FR 14
STR 59
STR 65
Location and Description
The Avionics Compartment Access Door is installed on the Nose Lower Unit of the section 11/12 (pressurized area). It is located between FR12 and FR14 andbetween STR59 to STR65 LH
The door opens up inside the fuselage and provides access to the avionics compartment. The door can be opened from the inside or from the outside of the aircraft.
A latching mechanism keeps the door in the closed and latched position. A compensating mechanism reduces the force which is necessary to operate the door andmaintained the door in the open position.
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A380 Maintenance Program Structures Supporting Data Sheet
Dossier: 52.41 Title:Access Doors Applicability: A380-800 Date:26 April 04 Page: 5.2
EXT. STRUCTURESKIN PANEL INT. STRUCTURE DOOR MECHANISM
INTERNAL HANDLE
EXTERNAL HANDLE
Main design principle
The Avionics Compartment Access Door is of plug in type design.
Main Components
Door Structure,
Door Seal,
Door Fittings,
Door Mechanism,
Door Suspension and Compensating Mechanism.
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A380 Maintenance Program Structures Supporting Data Sheet
Dossier: 52.41 Title:Access Doors Applicability: A380-800 Date:26 April 04 Page: 5.3
Door Structure
The Avionics Compartment Access Door structure includes:
- a bended skin made from aluminium alloy CLAD 2024 T3,
- 2 machined beams made from aluminium alloy 7175 T7351,
- 4 bended frames made from aluminium alloy CLAD 2024 T42,
- 2 machined frames made from aluminium alloy 7175 T7351,
- 2 strips skin made from aluminium alloy CLAD 2024 T42,
- 6 finger plates made from aluminium alloy CLAD 2024 T42,
- 2 splices made from aluminium alloy CLAD 2024 T42.
Rivets universal head are used to assembly the primary structure. The door structure forms compartments for the installation of the latching mechanism. A guardcovers the latching mechanism. FINGER PLATE
STRIP SKIN
BEAM
INTERNAL HANDLE
HINGED ARMS
DOOR SEAL
DOOR STOP FITTING
COMPENSATING MECHANISM ATTACHMENT
FRAME
GUARD
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A380 Maintenance Program Structures Supporting Data Sheet
Dossier: 52.41 Title:Access Doors Applicability: A380-800 Date:26 April 04 Page: 5.4
Door stop fitting
Fuselage stopfitting
Pin (15-5 PH)
UP
FWD
Door stop fitting
Fuselage stopfitting
Pin (15-5 PH)
UP
FWD
Door Seal
A round seal made from elastomer provides an aircraft pressurisation seal. Retainers and screws attach the seal to the door structure. The seal makes the avionicscompartment pressure-tight and prevents the penetration of water.
Door FittingsFour door stop fittings made from titanium alloy Ti6AI6-4V transfer the load pressure to the fuselage and allow to adjust the door flush with the fuselage skin.
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A380 Maintenance Program Structures Supporting Data Sheet
Dossier: 52.41 Title:Access Doors Applicability: A380-800 Date:26 April 04 Page: 5.6
ACCESSIBILITY CONDITIONS
External fuselage
External Access is identified as door 811 as presented on the following illustration :
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A380 Maintenance Program Structures Supporting Data Sheet
Dossier: 52.41 Title:Access Doors Applicability: A380-800 Date:26 April 04 Page: 5.8
DRAINAGE PROVISIONS
Holes in the frames, the beams and the strips skin allows the water drainage when the door is opened. Some typical drainage provisions are shown below:
Dia = 8 mm
Dia = 8 mm
Dia = 8 mm
Dia = 8 mm
Dia = 8 mm
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A380 Maintenance Program Structures Supporting Data Sheet
Dossier: 52.41 Title:Access Doors Applicability: A380-800 Date:26 April 04 Page: 5.9
EQUIPMENT AND SYSTEMS INSTALLATIONS:
ATA on the avionics compartment access door System Repercussion on the Nose Fuselage Structure
52 (systems) Doors mechanism No repercussion
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A380 Maintenance Program Structures Supporting Data Sheet
Dossier: 52.41 Title:Access Doors Applicability: A380-800 Date:26 April 04 Page: 5.10
CORROSION PREVENTION
Nose fuselage is divided into different areas, according to environmentalconditions.
- Category A Contact with air/condensation, easy accessible dryareas
- Category B Contact with fuel (included pipes/pipe areas)
Category C Area which can be contaminated by : hydraulicfluid, toilet or galley liquids, water, lubricants, etc
Area in which condensation forms and/or iscollected to a greater extend
Areas of difficult access
Areas with a high risk of accidental damage
Category C is subdivided into :
- Cat. C1 Areas in contact with water, moisture andoccasional exposure to other liquids and/or areaswith a high risk of accidental damage
- Cat. C2-1 Areas in contact with water, moisture and frequentexposure to other liquids
- Cat. C2-2 Areas in which water, moisture and other liquids
can collect and areas of difficult access
Section Section
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A380 Maintenance Program Structures Supporting Data Sheet
Dossier: 52.41 Title:Access Doors Applicability: A380-800 Date:26 April 04 Page: 5.11
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A380 Maintenance Program Structures Supporting Data Sheet
Dossier: 52.41 Title:Access Doors Applicability: A380-800 Date:26 April 04 Page: 5.12
TEMPORARY PROTECTIVE SYSTEMS (TPS)
Water repellent fluids (WRF) and/or corrosion inhibitors (CI) shall be applied in areas which are very humid and where water may collect. TPS type III material(Socopac 65H or ARDROX AV15) shall be applied. In Mechanism area TPS Type I is applied instead of type III
The purpose is to reduce the risk of liquid penetration into small gaps, cracks in paint around fasteners etc. and to supply an additional protection required by someairlines. To maintain this protection, repetitive application in-service is required.
Temporary protection (Water repellent / Corrosion inhibitor) - AIMS 09-08-003
Note: applied on metallic structure only
LH side shownRH side symmetrical
FR0FR22
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A380 Maintenance Program Structures Supporting Data Sheet
Dossier: 52.41 Title:Access Doors Applicability: A380-800 Date:26 April 04 Page: 5.13
MODS PAGE:
MODN
MODPROPOSAL
N
ATA TITLE/DESCRIPTION P.O.E. SSIsAFFECTED
60002 ------ 52.40 FUSELAGE - NOSE FORWARD FUSELAGE - DEFINE
SECTIONS 11/12 LOWER UNITS OF THE A380-800 BASIC
AIRCRAFT
MSN1 &
Subsequent
All
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A380 Maintenance Program Structures SSI Management List
Dossier: 52.41 Title:Access Doors Applicability: A380-800 Date: 26 April 04 Page: 6.1
Acc. DamageANALYSIS
ED/CPCPANALYSIS
AgingANALYSIS
Fatigue DamageANALYSIS
SSINumber SSI Description A
pplicab
ility
Design
Concept
Typeof
Material
Included
Covered by Included
Covered by N/A
Included
Covered by N/A
Included
Pending
Covered by N/A
52.41.S001 Avionics compartment access door skin, external surface -800 DT MET X X X X
52.41.S002 Avionics compartment access door, internal structure including doorstops fittings.
-800 DT MET X X X X
STR11
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MSG-3
ANALYSIS
Date: Page:
A380A380
A380-800
Applicability
ATA Chapter No.
SS Dossier No.
SSI No.:
Title
Issue:
52
52.41
MSG-3
ANALYSIS
52.41.S001
MSG-3 ANALYSIS FOR STRUCTURECover Sheet
STR13
Avionics compartment access
door skin, external surface
Prepared by: Nicolas SORET
Approved by: AIRBUS/SEM2T2/FREDERIC GASZTOWTT 02
Doors
Access Doors
Date: 26 April 2004
Date: 26 April 2004
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MSG-3
ANALYSIS
Date: Page:
A380
Applicability
A380-800
Issue
No. Reason for RevisionDate
List of Revisions
STR14
SSI No.: 52.41.S001
26 April 2004
ORIGINAL ISSUE26 Jan
2004
26 April
2004
01
1.0
02 SECOND ISSUE ; FILIFORM CORROSION DELETED AFTER MWG5#3 DECISION
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MSG-3
ANALYSIS
Date: Page:
A380
Applicability
26 April 2004
Page Description Date
List of Effective Pages
STR14a
Applicability
A380-800
2.0
LIST OF REVISION
LIST OF EFFECTIVE PAGES
DATA SHEET
ILLUSTRATION SHEET
ACCIDENTAL DAMAGE ANALYSIS SHEET-METALLIC
ED AND CPCP ANALYSIS SHEET - METALLIC
1.0
2.0
3.0
4.0
5.0
7.0
7.0
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
SSI No.: 52.41.S001
26 April 2004
26 April 2004
26 April 2004
26 April 2004
26 April 2004
26 April 2004
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MSG-3
ANALYSIS
Date: Page:
A380 Data Sheet
26 April 2004
Description:
Zones: Access:
MaterialItem
Type of Material:Design Concept:
Protection
DAMAGE TOLERANT
AVIONICS COMPARTMENT ACCESS DOOR SKIN, EXTERNAL SURFACE
800
METALLIC
Applicability
STR15
CAA + PRIMER + TOP COAT
IVD + SEALANT
N / A
CLAD 2024-T3
T6AL-4V
A380-800
3.0
1. DOOR EXTERNAL SKIN
2. FASTENERS (INTERACTIVE PARTS)
SSI No.: 52.41.S001
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MSG-3
ANALYSIS
Date: Page:
A380 Illustration Sheet
ILLUSTRATION: NOT IN MAINTENANCE CONDITIONApplicability
STR17
A380-800
4.0
SSI No.: 52.41.S001
UP
FWD
1
510 mm
690mm
26 April 2004
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MSG-3
ANALYSIS
Date: Page:
A380 Accidental Damage Analysis Sheet - Metallic
2
1
4
3
5
Damage sources
Cargo handling equipment
Ground handling equipment
Operations procedure
Maintenance procedure
Weather effects
7
6
8
9
Runway debris
Bird strike
Manufacturing defects
Others
Damage Descriptionlikely unlikely
Damage selected:
(type, location, size)
Fatigue Impact:
Environmental Impact:
Remarks:
DETERIORATION OF PROTECTION, SCRATCHES
DETERIORATION OF PROTECTION, SCRATCHES
No Yes Damage to be considered in fatigue damage analysis
No Yes Damage to be considered in environmental deterioration analysis
Accidental Damage covered by another SSI?
No Yes SSI No.:
Applicability
STR18
A380-800
5.0
DETERIORATION OF PROTECTION, SCRATCHES.
SSI No.: 52.41.S001
DETERIORATION OF PROTECTION, SCRATCHES
26 April 2004
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MSG-3
ANALYSIS
Date: Page:
A380 ED and CPCP Analysis Sheet - Metallic
Threshold
Inspection Level
TPS
Interval
CPCP RequirementCOMPARE WITH ED REQUIREMENTS
AND CONSOLIDATE IN A UNIQUE
ED/CPCP REQUIREMENT
Threshold
Inspection Level
Interval
Sampling
Type of corrosion
ED RequirementPotential type of
corrosionStress
corrosion ratingEnvironmental
ratingProtection
ratingInspection
interval
Filiform
Uniform
Pitting
Intergranular
Fretting
Crevice
Galvanic
Microbiological
100% Threshold
Inspection Level
TPSType:
Interval
ED/CPCP Requirement
Sampling
Sampling Threshold
Zonal
AD to be considered?Material Selection:
Remarks / Justification:
CLAD 2024-T3 (CLAD SHEET 0.8
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MSG-3
ANALYSIS
Date: Page:
A380A380
A380-800
Applicability
ATA Chapter No.
SS Dossier No.
SSI No.:
Title
Approved by: AIRBUS/SEM2T2/FREDERIC GASZTOWTT Issue:
52
52.41
Prepared by: Nicolas SORET
MSG-3
ANALYSIS
52.41.S002
MSG-3 ANALYSIS FOR STRUCTURECover Sheet
STR13
Avionics compartment accessdoor, internal structure includingdoor stops fittings.
02
Doors
Access Doors
Date: 26 April 2004
Date: 26 April 2004
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MSG-3
ANALYSIS
Date: Page:
A380
Applicability
A380-800
Issue
No. Reason for RevisionDate
List of Revisions
STR14
SSI No.: 52.41.S002
1.026 April 2004
ORIGINAL ISSUE26 Jan
2004
26 April
2004
01
02 SECOND ISSUE: LINING TO BE ADDED IN THE ACCESS REQUIREMENT
TPS TYPE I SPECIFIED IN THE MECHANISM AREA
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MSG-3
ANALYSIS
Date: Page:
A380
ApplicabilityPage Description Date
List of Effective Pages
STR14a
Applicability
A380-800
2.0
LIST OF REVISION
LIST OF EFFECTIVE PAGES
DATA SHEET
DATA SHEET (CONT)
ILLUSTRATION SHEET
ACCIDENTAL DAMAGE ANALYSIS SHEET-METALLIC
ED AND CPCP ANALYSIS SHEET - METALLIC
1.0
2.0
3.0
3.1
4.0
5.0
7.0
SSI No.: 52.41.S002
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
A380-800
26 April 2004
26 April 2004
26 April 2004
26 April 2004
26 April 2004
26 April 2004
26 April 2004
26 April 2004
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MSG-3
ANALYSIS
Date: Page:
A380 Data Sheet
Description:
Zones: Access:
MaterialItem
Type of Material:Design Concept:
Protection
DAMAGE TOLERANT
AVIONICS COMPARTMENT ACCESS DOOR, INTERNAL STRUCTURE INCLUDING DOOR STOPS FITTINGS.
811
METALLIC
Applicability
STR15
CAA + PRIMER + TOP COAT
CAA + PRIMER + TOP COAT
CAA + PRIMER + TOP COAT
CAA + PRIMER + TOP COAT
CAA + PRIMER + TOP COAT
CAA + PRIMER + TOP COAT
811, LINING
CLAD 2024-T3
7175-T7351
7175-T7351
CLAD 2024-T42
CLAD 2024-T42
7175-T7351
A380-800
3.0
1. DOOR SKIN
2. UPPER BEAM
3. LOWER BEAM
4. DOOR FRAME (UPPER PART)
5. DOOR FRAME (CENTRAL PART)
6. DOOR FRAME (LOWER PART)
SSI No.: 52.41.S002
26 April 2004
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MSG-3
ANALYSIS
Date: Page:
A380 Data Sheet
MaterialItem ProtectionApplicability
SSI No.: 52.41.S002
STR16
3.1
CAA + PRIMER + TOP COAT
CAA + PRIMER + TOP COAT
CAA + PRIMER + TOP COAT
CAA + PRIMER + TOP COATNO PROTECTION
PASSIVATED
IVD
CLAD 2024-T42
CLAD 2024-T3
CLAD 2024-T42
CLAD 2024-T42Ti6Al6-4V
15-5 PH
T6AL-4V
7. SPLICE (UPPER AND LOWER)
8. HANDLE SUPPORT PLATE
9. FRONT STRIP SKIN
10. BACK STRIP SKIN11. DOOR STOP FITTING
12. STOP PIN
13. FASTENERS (INTERACTIVE PARTS)
A380-800
26 April 2004
+ TPS TYPE III & I APPLIED
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MSG-3
ANALYSIS
Date: Page:
A380 Illustration Sheet
Illustration: NOT IN MAINTENANCE CONDITIONApplicability
STR17
A380-800
4.0
SSI No.: 52.41.S002
FWD
11
12
10
3
1
2
7
4
5
8
UP
FWD
6
9
11
690
mm
510mm
7
26 April 2004
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MSG-3
ANALYSIS
Date: Page:
A380 Accidental Damage Analysis Sheet - Metallic
2
1
4
3
5
Damage sources
Cargo handling equipment
Ground Handling equipment
Operations procedure
Maintenance procedure
Weather effects
7
6
8
9
Runway debris
Bird strike
Manufacturing defects
Others
Damage Descriptionlikely unlikely
Damage selected:
(type, location, size)
Fatigue Impact:
Environmental Impact:
Remarks:
DETERIORATION OF PROTECTION, SCRATCHES
No Yes Damage to be considered in fatigue damage analysis
No Yes Damage to be considered in environmental deterioration analysis
Accidental Damage covered by another SSI?
No Yes SSI No.:
Applicability
STR18
A380-800
5.0
DETERIORATION OF PROTECTION, SCRATCHES.
SSI No.: 52.41.S002
26 April 2004
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MSG-3
ANALYSIS
Date: Page:
A380 ED and CPCP Analysis Sheet - Metallic
Threshold
Inspection Level
TPS
Interval
CPCP RequirementCOMPARE WITH ED REQUIREMENTS
AND CONSOLIDATE IN A UNIQUE
ED/CPCP REQUIREMENT
Threshold
Inspection Level
Interval
Sampling
Type of corrosion
ED RequirementPotential type of
corrosionStress
corrosion ratingEnvironmental
ratingProtection
ratingInspection
interval
Filiform
Uniform
Pitting
Intergranular
Fretting
Crevice
Galvanic
Microbiological
100% Threshold
Inspection Level
TPSType:
Interval
ED/CPCP Requirement
Sampling
Sampling Threshold
Zonal
AD to be considered?Material Selection:
Remarks / Justification:
7175 T7351(ROLLED PRODUCTS 6
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Dossier: 52.41 Title:Access Doors Applicability: A380-800 Date: 26 April 04 Page: 8.1
Threshold CandidateSSI
RequirementReference Zone Access
Insp.Level SSI Description Sample 100% Interval Applicab. Zonal ALI
52.41.S001.ED01811 N/A GVI Avionics compartment access door skin, external surface - 6 Yrs 6 Yrs A380-800 MWG5-TS-005 N/A
52.41.S002.ED01811 811, Lining
DET Avionics compartment access door, internal structure
including door stops fittings .
TPS Application: Type III & I
- 6 Yrs 6 Yrs A380-800 N/A N/A
STR27
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A380 Maintenance Program Structures SSI Requirements Consolidation Sheet
Dossier:52.41 Title:Access Doors Applicability:A380-800 Date: 26 April 2004 Page: 9.1
ThresholdMPPTask
Reference
SSIRequirement
Reference Zone AccessInsp.Level
SSI Description
Sample 100% Interval Applicab. Remarks
52.41.01.01.1 52.41.S002.ED01 811 811, Lining DET Avionics compartment access door, internalstructure including door stops fittings.
TPS Application: Type III & I
- 6 Yrs 6 Yrs A380-800
A380 Maintenance Program Structures MRB Report Interface SheetMRBR
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Dossier:52.41 Title:Access Door Applicability:A380-800 Date: 26 April 2004 Page: 10.1
ThresholdMPPTask
Reference
MRBRTask
Number Zone Access
Insp.Level MRBR Task Description Sample 100% Interval Applicab. Remarks
52.41.01.01.1 TBD 811 811, Lining DET Avionics compartment access door, in ternalstructure including door stops f ittings.
TPS Application: Type III & I
- 6 Yrs 6 Yrs A380-800
A380 Maintenance Program Structures Task Data Sheet
MRBR
Task Zone Access I
Elapsed Time : TBD
N f M 1
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TaskNumber
Zone Access Insp.
LevelMRBR Task Description
52..41.01.01.1 811 811, Lining DET Avionics compartment access door, internal s tructure including door
stops fittings.
.
No. of Men : 1
Man Hours : 1
Skill : TBD
Material : --
Tool /GSE : N/A
AMM Ref. : TBD
Dossier:52.41 Title:Access Doors Applicability:A380-800 Date: 26 April 04 Page: 11.1
(1) Make sure the inspection area is clean
(2) Inspection
(1) Do a detailed inspection of the Avionics compartment access door, internal structure including door stops fittings..
(2) Make sure that there is no :(a) Corrosion damage :(b) Other damage (cracks, scratches, marks, dents ,bumps,..) :
Re-apply Temporary Protection system in this area.
Note: TPS type III to be applied except in the mechanism area where type I should be applied.
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8/13/2019 H 1 Examples Struct
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