CES TASK 53-11-00-220-002
Detailed Inspection of Aft Face of Forward Pressure Bulkhead, below Cockpit Floor Level, Including FR1 and Stringer Connections
1. Reason for the Job
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Refer to the MPD TASK: 531191-01
2. Job Set-up Information
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A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
R No specific access platform 1.8 m (5 ft. 11 in.)
B. Consumable Materials
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No specific masking paper
Material No. 08-074
MASKING TAPE (Ref. 20-31-00)
Material No. 11-004 USA MIL-T-81533
1.1.1TRICHLOROETHANE (METHYL CHLOROFORM)
(Ref. 20-31-00)
Material No. 15-005 AIB TN 10138 TYPE I GRADE 2 CORROSION PREVENTIVE TEMPORARY PROTECTIVE COMPOUND (Ref. 20-31-00)
Material No. 15-006 AIB TN 10138 TYPE I GRADE 3 CORROSION PREVENTIVE TEMPORARY PROTECTIVE COMPOUND (Ref. 20-31-00)
Material No. 19-003 USA AMS 3819
LINT-FREE COTTON CLOTH (Ref. 20-31-00)
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
25-80-00-000-001
25-80-00-400-001 R 52-41-00-010-002 R 52-41-00-410-002
53-12-13-000-001 53-12-13-400-001 SRM 511100 P.Block 001 SRM 512200 P.Block 001
R 53-11-00-991-062
3. Job Set-up
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Subtask 53-11-00-010-084
A. Get Access Removal of the Insulation BlanketsInstallation of the Insulation Blankets Open the Avionics Compartment Doors for Access Close the Avionics Compartment Doors after AccessRemoval of the avionics compartment floor panelsInstallation of the avionics compartment floor panels(for corrective action)(for corrective action) Fig. 653
R (1) Put an access platform in position at the zone 121 (122).
R (2) Open the avionics-compartment door 811 (Ref. TASK 52-41-00-010-002).
(3) Remove the forward avionics-compartment floor-panels (Ref. TASK 53-12-13-000-001).
R (4) Remove the insulation blankets (Ref. TASK 25-80-00-000-001).
(5) Move the wiring bundles.
Subtask 53-11-00-110-098
B. Cleaning of the Structure
WARNING : USE SOLVENTS/CLEANING AGENTS, SEALANTS AND OTHER SPECIAL
_______ MATERIALS ONLY WITH A GOOD SUPPLY OF AIR. OBEY THE MANUFACTURERS INSTRUCTIONS. PUT ON PROTECTIVE CLOTHING. DO NOT GET THEM IN YOUR MOUTH. DO NOT SMOKE. DO NOT BREATHE THE GAS. THESE MATERIALS ARE POISONOUS, FLAMMABLE AND SKIN IRRITANT. GET MEDICAL HELP IF YOUR SKIN OR EYES BECOME IRRITATED.
(1) Clean the inspection area with CLEANING AGENTS (Material No. 11-004) and a lint-free cotton cloth MISCELLANEOUS (Material No. 19-003), if necessary.
4. Procedure_________
Subtask 53-11-00-220-064
R A. Inspection (Ref. Fig. 653/TASK 53-11-00-991-062)
R (1) Do a detailed inspection of the structure of the aft face of the forward pressure bulkhead. This inspection is applicable below the cockpit floor level and includes FR1 and the stringer connections.
(2) Make sure that there is no:
R R (a) Corrosion damage: - If you find corrosion damage, refer to the Structural Repair Manual (Ref. SRM 512200 P.Block 001) for types of corrosion, inspection, removal and corrosion protection.
R R (b) - If you find corrosion on the pressure bulkhead above the avionics floor panels, you must examine the full aft face (top and bottom areas) of the pressure bulkhead.
(c) Other damage (cracks, scratches, stress, marks, dents, bumps, ...): - If you find other damage, refer to the Structural Repair Manual (Ref. SRM 511100 P.Block 001) for damage classification and corrective action.
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