Replace Pressure Reducer (P/N D41428 and D41552)

TASK 26-23-00-920-802-A
Replace Pressure Reducer (P/N D41428 and D41552)

ZONE: 130
ZONE: 150
ZONE: 160
ZONE: 170
FIN: 5014WM ** ON A/C NOT FOR ALL
FIN: 5015WM ** ON A/C NOT FOR ALL
FIN: 5044WM ** ON A/C NOT FOR ALL
FIN: 5045WM ** ON A/C NOT FOR ALL

1. Reason for the Job
Refer to the MPD TASK: 262318-01
REPLACE PRESSURE REDUCER (P/N D41428 AND D41552)
2. Job Set-up Information
A. 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
160	BULK CARGO COMPARTMENT AFT BULKHEAD OF AFT CARGO COMPARTMENT TO AFT BULKHEAD OF BULK CARGO COMPARTMENT
170	AFT CAB U/FLOOR COMPT AFT BHD OF BULK

B. Referenced Information

REFERENCE	DESIGNATION
TASK 26-23-18-000-001-A	Removal of the Pressure Reducer
TASK 26-23-18-000-002-A	Removal of the Pressure Reducer
TASK 26-23-18-400-001-A	Installation of the Pressure Reducer
TASK 26-23-18-400-002-A	Installation of the Pressure Reducer

3. Job Set-up
Subtask 26-23-00-941-056-A ** ON A/C NOT FOR ALL

A. There is no special job set-up for this task.

4. Procedure
Subtask 26-23-00-960-050-A ** ON A/C NOT FOR ALL

A. Replace the Pressure Reducer
(1) Replace the pressure reducer (Ref. AMM TASK 26-23-18-000-001) and (Ref. AMM TASK 26-23-18-400-001).

NOTE: Life limitation value for ETOPS is 20 years.

Subtask 26-23-00-960-050-B ** ON A/C NOT FOR ALL

A. Replace the Pressure Reducer
(1) Replace the pressure reducer (Ref. AMM TASK 26-23-18-000-001) and (Ref. AMM TASK 26-23-18-400-001) or (Ref. AMM TASK 26-23-18-000-002) and (Ref. AMM TASK 26-23-18-400-002).

NOTE: Life limitation value for ETOPS is 20 years.

5. Close-up
Subtask 26-23-00-942-061-A ** ON A/C NOT FOR ALL

A. No special close-up is necessary for this task.

[Rev.10 from 2021] 2026.03.31 23:45:49 UTC