Reactivation of the Access Door to Potable Water Filling and Drainage (133AL, 171AL)

TASK 52-42-00-440-804-A
Reactivation of the Access Door to Potable Water Filling and Drainage (133AL, 171AL)

ZONE: 130
ZONE: 170

1. Reason for the Job
CDL 52-03
ACCESS DOOR TO POTABLE WATER FILLING AND DRAINAGE 133 AL - 171 AL
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE

B. Work Zones and Access Panels

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
133AL, 171AL

C. Referenced Information

REFERENCE	DESIGNATION
TASK 52-42-13-400-001-A	Installation of the Service Door
TASK 52-42-19-400-801-A	Installation of the Potable Water Service-Door
Access Door to Potable Water Filling and Drainage 133AL
Access Door to Potable Water Filling and Drainage 171AL

3. Job Set-up
Subtask 52-42-00-010-060-A

A. Get Access
(1) Put the ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE in position below the applicable access door.

4. Procedure
Subtask 52-42-00-440-056-A

A. Reactivation of the Access Door to Potable Water Filling and Drainage (133AL, 171AL)
(1) Remove the high-speed tape from the cutout of the access door.
(2) For access door 171AL, do the steps that follow:
(a) Remove the high-speed tape from the pins (2).
(b) Remove the pins (2) from limit switch 5MA (1).
(3) Install a serviceable access door:

5. Close-up
Subtask 52-42-00-410-058-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Make sure that applicable access door 133AL or 171AL is closed.
(3) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.02 06:28:17 UTC