Removal of Drainage - Forward or Aft Cargo Compartments

TASK 25-53-00-000-001-A
Removal of Drainage - Forward or Aft Cargo Compartments

ZONE: 130
ZONE: 150

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	1	WARNING NOTICE(S)

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
150	AFT CARGO COMPARTMENT FWD PRESS BULKHEAD TO AFT BULKHEAD OF AFT CARGO COMPARTMENT
131AG, 131BG, 131LF, 131SF, 131TF, 132AG, 132BG, 132SF, 132TF, 151AG, 151BG, 151TF, 151UF, 152AG, 152BG, 152TF, 152VF, 152WF

C. Referenced Information

REFERENCE	DESIGNATION
TASK 25-52-24-000-001-A	Removal of the Roller Assembly
TASK 52-30-00-860-001-A	Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 53-22-14-000-001-A	Removal of the Forward Cargo-Compartment Floor-Panels
TASK 53-42-14-000-001-A	Removal of the Aft Cargo-Compartment Floor-Panels Zone 150
Drainage - Forward and Aft Cargo Compartments

3. Job Set-up
Subtask 25-53-00-010-050-A ** ON A/C NOT FOR ALL

A. Get Access
(1) Open the forward and the aft cargo-compartment door (Ref. AMM TASK 52-30-00-860-001).
(2) Put the ACCESS PLATFORM 2M (6 FT) in position at the opening of the forward and the cargo-compartment door(s).
(3) Put the WARNING NOTICE(S) on the applicable control panel of the cargo loading system to tell persons not to use it.

Subtask 25-53-00-865-059-A ** ON A/C NOT FOR ALL

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
2000VU	WASTE WIP-DRAINMAST-FWD	1DU	B03
** ON A/C NOT FOR ALL
2000VU	SEMI AUTO CLS-FWD	3MY	E08
2000VU	SEMI AUTO CLS-FWD	2MY	E06
** ON A/C NOT FOR ALL
2000VU	WASTE WIP-DRAINMAST-FWD	1DU	B06
** ON A/C NOT FOR ALL
2001VU	WASTE WIP-DRAINMAST-MID	21DU	E02
** ON A/C NOT FOR ALL
2001VU	SEMI AUTO CLS-AFT	103MY	D08
2001VU	SEMI AUTO CLS-AFT	102MY	D06

Subtask 25-53-00-010-051-B ** ON A/C NOT FOR ALL

C. Get Access
(1) Remove the floor panels 131LF 131SF 132SF 131TF 132TF 131AG 132AG 131BG 132BG in the forward cargo compartment (Ref. AMM TASK 53-22-14-000-001).
(2) Remove the floor panels 151TF 152TF 151UF 152VF 152WF 151AG 152AG 151BG 152BG in the aft cargo compartment (Ref. AMM TASK 53-42-14-000-001).
(3) Remove the roller assembly to get access to the drain funnel in the roller track (Ref. AMM TASK 25-52-24-000-001).

4. Procedure
Subtask 25-53-00-020-051-A ** ON A/C NOT FOR ALL

A. Removal of the Filter and the Filter Holder

Drainage - Forward and Aft Cargo Compartments ** ON A/C NOT FOR ALL

(1) Remove the screws (1) from the filter holder (2).
(2) Remove and discard the filter (3).

Subtask 25-53-00-020-050-A ** ON A/C NOT FOR ALL

B. Removal of the Drain Funnel

Drainage - Forward and Aft Cargo Compartments ** ON A/C NOT FOR ALL

(1) Remove and discard the tie wrap (6) from the flexible hose (7).
(2) Pull the flexible hose (7) from the drain funnel (5).
(3) Remove the screws (9) and the nuts (8).
(4) Remove the drain funnel (5).

[Rev.10 from 2021] 2026.03.31 23:38:46 UTC