Deactivation of the Access Door to Potable Water Filling and Drainage (133AL, 171AL, 192NB)
TASK 52-42-00-040-803-A
Deactivation of the Access Door to Potable Water Filling and Drainage (133AL, 171AL, 192NB)
CDL 52-03
ACCESS DOOR TO POTABLE WATER FILLING AND DRAINAGE 133 AL - 171 AL - 192 NB
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 52-42-00-010-055-A ** ON A/C NOT FOR ALL
Subtask 52-42-00-040-055-A ** ON A/C NOT FOR ALL
Subtask 52-42-00-410-060-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 06:28:17 UTC
Deactivation of the Access Door to Potable Water Filling and Drainage (133AL, 171AL, 192NB)
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobCDL 52-03
ACCESS DOOR TO POTABLE WATER FILLING AND DRAINAGE 133 AL - 171 AL - 192 NB
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.05RAB9) | Adhesive Film Tape-- Aluminium Foil - |
| (Material No.08BPA1) | Non Aqueous Cleaner-Non structural use - - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 130 | FWD CARGO COMPT AFT BULKHEAD OF AVNCS COMPT TO FWD PRESSURE BULKHEAD OF WING CENTER BOX |
| 170 | AFT CAB U/FLOOR COMPT AFT BHD OF BULK |
| 190 | BELLY FAIR, AIR CONDITIONING & HYD COMPT |
| 133AL, 171AL, 192NB |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-15-38-613-002-A | Fill the Potable Water Tank System (Aircraft Electrical Power not Available) |
| TASK 52-42-13-000-001-A | Removal of the Service Door |
| TASK 52-42-14-000-001-A | Removal of the Potable Water Service-Door |
| TASK 52-42-19-000-801-A | Removal of the Potable Water Service-Door |
Subtask 52-42-00-010-055-A ** ON A/C NOT FOR ALL
A. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the applicable access door.
4. Procedure(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the applicable access door.
Subtask 52-42-00-040-055-A ** ON A/C NOT FOR ALL
A. Deactivation of the Access Door to Potable Water Filling and Drainage (133AL, 171AL, 192NB)
(1) Before you start the deactivation, make sure that the potable water tank-system is filled for the subsequent flight.
(2) If necessary, fill the potable water tank-system (Ref. AMM TASK 12-15-38-613-002).
(3) Remove the applicable damaged access door:
(a) Push limit switch 5MA (1) and put the pins (2) in its holes.
(5) Make sure that the work area is clean and clear of tools and other items.
(6) Clean the belly fairing structure around the cutout with Non Aqueous Cleaner-Non structural use - - (Material No.08BPA1) . Make sure that you clean from the cutout edge to dimension X 25 mm (0.98 in.), for the correct application of the high-speed tape.
(7) Use the Textile-Lint free Cotton - (Material No.14SBA1) and make sure that you fully dry the belly fairing structure around the cutout to dimension X 25 mm (0.98 in.).
(8) Apply three layers of Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) on the cutout as follows:
(a) Apply the first layer longitudinally on the access door cutout. Apply the second and third layer diagonally so that the layers are on top of each other.
(b) All layers must have an overlap of dimension Y (50% of the width of the tape in use) or 12 mm (0.47 in.) minimum (if the tape has insufficient width).
(9) Do an inspection of the high-speed tape at each three days:
(a) If you find damage, refer to steps (6) thru (8) to replace the high-speed tape.
5. Close-up(1) Before you start the deactivation, make sure that the potable water tank-system is filled for the subsequent flight.
(2) If necessary, fill the potable water tank-system (Ref. AMM TASK 12-15-38-613-002).
(3) Remove the applicable damaged access door:
- 133AL (Ref. AMM TASK 52-42-19-000-801) or
- 171AL (Ref. AMM TASK 52-42-13-000-001) or
- 192NB (Ref. AMM TASK 52-42-14-000-001).
(a) Push limit switch 5MA (1) and put the pins (2) in its holes.
NOTE: The diameter of the pins is 3.5 -0 mm or +0.5 mm (0.1378 -0 in. or +0.0197 in.).
NOTE: You can use rivets as an alternative to the pins.
(b) Safety the pins (2) with Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) .(5) Make sure that the work area is clean and clear of tools and other items.
(6) Clean the belly fairing structure around the cutout with Non Aqueous Cleaner-Non structural use - - (Material No.08BPA1) . Make sure that you clean from the cutout edge to dimension X 25 mm (0.98 in.), for the correct application of the high-speed tape.
(7) Use the Textile-Lint free Cotton - (Material No.14SBA1) and make sure that you fully dry the belly fairing structure around the cutout to dimension X 25 mm (0.98 in.).
(8) Apply three layers of Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) on the cutout as follows:
(a) Apply the first layer longitudinally on the access door cutout. Apply the second and third layer diagonally so that the layers are on top of each other.
(b) All layers must have an overlap of dimension Y (50% of the width of the tape in use) or 12 mm (0.47 in.) minimum (if the tape has insufficient width).
(9) Do an inspection of the high-speed tape at each three days:
(a) If you find damage, refer to steps (6) thru (8) to replace the high-speed tape.
Subtask 52-42-00-410-060-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Make an entry in the logbook.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Make an entry in the logbook.
Access Door to Potable Water Filling and Drainage 192NB