(6)
 Remove the access platform(s).

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 CES

 INTENTIONALLY BLANK

 **ON A/C 301-399,
 TASK 53-21-00-220-001-A
 Detailed Inspection of Cabin Floor Structure, below and 0.5 M around Galleys and Toilets (if Installed) and Emergency Exit Entrance Area, between FR 24 ...
 1. Reason for the Job
__________________
 Refer to the MPD TASK: 532105-01
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific  access platform 3.5 m (11 ft. 6 in.)
 B. Consumable Materials
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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. 15-007  AIB TN 10138 TYPE II GRADE 1 CORROSION PREVENTIVE TEMPORARY PROTECTIVE COMPOUND (Ref. 20-31-00)
 Material No. 15-008  AIB TN 10138 TYPE II GRADE 2 CORROSION PREVENTIVE TEMPORARY PROTECTIVE COMPOUND (Ref. 20-31-00)
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May 01/05
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 CES  -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------

Material No. 19-003  USA AMS 3819 LINT-FREE COTTON CLOTH (Ref. 20-31-00)
 C. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
25-31-41-000-001 Removal of the FWD Galley Unit (6475MM) 25-31-41-000-002 Removal of the FWD Galley Unit (6478MM or 6479MM) 25-31-41-400-001 Installation of the FWD Galley Unit (6475MM) 25-31-41-400-002 Installation of the FWD Galley Unit (6478MM or
 6479MM) 25-32-41-000-001 Removal of the MID RH Galley Unit (7000MM) 25-32-41-400-001 Installation of the MID RH Galley Unit (7000MM) 25-41-41-000-001 Removal of the Lavatory A 25-41-41-400-001 Installation of the Lavatory A 25-41-42-000-001 Removal of the Lavatory B 25-41-42-400-001 Installation of the Lavatory B 25-42-41-000-001 Removal of the Lavatory H 25-42-41-400-001 Installation of the Lavatory H 52-10-00-010-001 Opening of the Passenger/Crew Door 52-10-00-410-001 Closing of the Passenger/Crew Door 53-22-12-000-001 Removal of the Cabin Floor Panels 53-22-12-400-001 Installation of the Cabin Floor Panels SRM 511100 P.Block 001 (for corrective action) SRM 512200 P.Block 001 (for corrective action) 53-21-00-991-027 Fig. 624
 3. Job Set-up
__________
 Subtask 53-21-00-010-076
 A. Get Access
 (1)
 Put an access platform in position at zone 831 (841).

 (2)
 Open the forward passenger/crew door 831 (841) (Ref. TASK 52-10-00-010-001).

 (3)
 Remove the lavatories, if installed (Ref. TASK 25-41-41-000-001) (Ref. TASK 25-41-42-000-001) (Ref. TASK 25-42-41-000-001).

 EFF : 301-399,  53-21-00Page A650

May 01/05
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 CES

 (4)
 Remove the galleys, if installed (Ref. TASK 25-31-41-000-001) (Ref. TASK 25-31-41-000-002) (Ref. TASK 25-32-41-000-001).

 (5)
 Remove the cabin floor panels from FR24 to FR35.8 (Ref. TASK 53-22-12-000-001).

 Subtask 53-21-00-110-077
 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 53-21-00-220-071
 A. Inspection
　
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