Detailed Inspection of Continuity Fitting between FR 20 and FR 21, and Angle Fitting, Both Sides of FR 21, at Stringer 41 Location, LH/RH
TASK 53-11-00-210-021-A
Detailed Inspection of Continuity Fitting between FR 20 and FR 21, and Angle Fitting, Both Sides of FR 21, at Stringer 41 Location, LH/RH
Refer to the MPD TASK: 531157-01
DETAILED INSPECTION OF CONTINUITY FITTING BETWEEN FR 20 AND FR 21, AND ANGLE FITTING, BOTH SIDES OF FR 21, AT STRINGER 41 LOCATION, LH/RH
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 53-11-00-010-062-A
Subtask 53-11-00-220-085-A
Subtask 53-11-00-420-058-A
[Rev.10 from 2021]
2026.04.02 06:28:42 UTC
Detailed Inspection of Continuity Fitting between FR 20 and FR 21, and Angle Fitting, Both Sides of FR 21, at Stringer 41 Location, LH/RH
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobRefer to the MPD TASK: 531157-01
DETAILED INSPECTION OF CONTINUITY FITTING BETWEEN FR 20 AND FR 21, AND ANGLE FITTING, BOTH SIDES OF FR 21, AT STRINGER 41 LOCATION, LH/RH
NOTE: The effectivity of this task is "ALL". To know if this task is applicable for your aircraft, refer to the MPD task applicability and the weight variant data given in the SRM introduction.
2. Job Set-up InformationA. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 127 | REAR AVIONIC COMPARTMENT |
| 128 | REAR AVIONIC COMPARTMENT |
| 824 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 34-12-34-000-001-A | Removal of the ADIRU |
| TASK 34-12-34-400-001-A | Installation of the ADIRU |
| TASK 34-12-51-000-001-A | Removal of the ADIRU Mount (Nominal Procedure) |
| TASK 34-12-51-000-802-A | Removal of the ADIRU Mount (Alternative Procedure) |
| TASK 34-12-51-400-001-A | Installation of the ADIRU Mount with Alignment Tools |
| TASK 34-12-51-400-802-A | Installation of the ADIRU Mount without Alignment Tools |
| TASK 52-41-00-010-002-A | Open the Avionics Compartment Doors for Access |
| TASK 52-41-00-410-002-A | Close the Avionics Compartment Doors after Access |
| TASK 53-12-13-000-001-A | Removal of the avionics compartment floor panels |
| TASK 53-12-13-400-001-A | Installation of the avionics compartment floor panels |
| SRM 511100 | (for corrective action) |
| SRM 512200 | (for corrective action) |
Subtask 53-11-00-010-062-A
A. Get Access
(1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position in zone 824.
(2) Open the lateral avionics-compartment door 824 (Ref. AMM TASK 52-41-00-010-002).
Subtask 53-11-00-020-060-A (1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position in zone 824.
(2) Open the lateral avionics-compartment door 824 (Ref. AMM TASK 52-41-00-010-002).
B. Removal of the Components
(1) Remove the two quick-release pins (1) and lift and remove the ladder (2), if installed.
(2) Remove the ADIRU (Air Data/Inertial Reference Unit), if necessary (Ref. AMM TASK 34-12-34-000-001).
(3) Remove the ADIRU mount, if necessary (Ref. AMM TASK 34-12-51-000-001) or (Ref. AMM TASK 34-12-51-000-802).
(4) Remove the applicable floor panel (4) in the avionics compartment (Ref. AMM TASK 53-12-13-000-001).
Subtask 53-11-00-110-076-A (1) Remove the two quick-release pins (1) and lift and remove the ladder (2), if installed.
(2) Remove the ADIRU (Air Data/Inertial Reference Unit), if necessary (Ref. AMM TASK 34-12-34-000-001).
(3) Remove the ADIRU mount, if necessary (Ref. AMM TASK 34-12-51-000-001) or (Ref. AMM TASK 34-12-51-000-802).
(4) Remove the applicable floor panel (4) in the avionics compartment (Ref. AMM TASK 53-12-13-000-001).
C. Cleaning of the Structure
(1) Clean the inspection area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) , if necessary.
4. Procedure(1) Clean the inspection area with Non Aqueous Cleaner-General - - (Material No.08BAA9) and a lint-free cotton cloth Textile-Lint free Cotton - (Material No.14SBA1) , if necessary.
Subtask 53-11-00-220-085-A
A. Inspection
(1) Do a detailed inspection of:
- The continuity fitting (1) between FR20 and FR21
- The angle fitting (2) on the two sides of FR21, at STGR41, left and right sides.
(2) Make sure that there is no:
(a) Corrosion damage:
- If you find corrosion damage, refer to the Structural Repair Manual SRM 512200 for types of corrosion, inspection, removal and corrosion protection.
(b) Other damage (scratches, cracks, gouges, dents, creases):
- If you find other damage, refer to the Structural Repair Manual SRM 511100 for damage classification and corrective action.
5. Close-up(1) Do a detailed inspection of:
- The continuity fitting (1) between FR20 and FR21
- The angle fitting (2) on the two sides of FR21, at STGR41, left and right sides.
(2) Make sure that there is no:
(a) Corrosion damage:
- If you find corrosion damage, refer to the Structural Repair Manual SRM 512200 for types of corrosion, inspection, removal and corrosion protection.
(b) Other damage (scratches, cracks, gouges, dents, creases):
- If you find other damage, refer to the Structural Repair Manual SRM 511100 for damage classification and corrective action.
Subtask 53-11-00-420-058-A
A. Installation of the Components
(1) Install the applicable floor panel (4) in the avionics compartment (Ref. AMM TASK 53-12-13-400-001).
(2) Install the ADIRU mount, if removed (Ref. AMM TASK 34-12-51-400-001) or (Ref. AMM TASK 34-12-51-400-802).
(3) Install the ADIRU, if removed (Ref. AMM TASK 34-12-34-400-001).
(4) Install the ladder (2) on the floor fittings (3), if removed, and install the two quick-release pins (1).
Subtask 53-11-00-410-062-A (1) Install the applicable floor panel (4) in the avionics compartment (Ref. AMM TASK 53-12-13-400-001).
(2) Install the ADIRU mount, if removed (Ref. AMM TASK 34-12-51-400-001) or (Ref. AMM TASK 34-12-51-400-802).
(3) Install the ADIRU, if removed (Ref. AMM TASK 34-12-34-400-001).
(4) Install the ladder (2) on the floor fittings (3), if removed, and install the two quick-release pins (1).
B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the lateral avionics-compartment door 824 (Ref. AMM TASK 52-41-00-410-002).
(3) Remove the access platform(s).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the lateral avionics-compartment door 824 (Ref. AMM TASK 52-41-00-410-002).
(3) Remove the access platform(s).
Ladder