Open Pressure Relief Door 471BL on Engine 1 Pylon/Wing Interface

TASK 36-14-00-810-809-A
Open Pressure Relief Door 471BL on Engine 1 Pylon/Wing Interface

WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK ON THE PNEUMATIC SYSTEM.

WARNING: BE CAREFUL WHEN YOU WORK ON THE ENGINE COMPONENTS IMMEDIATELY AFTER THE ENGINE IS SHUTDOWN. THE ENGINE COMPONENTS CAN STAY HOT FOR UP TO ONE HOUR.

1. Possible Causes

pressure relief door 471BL

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TSM TASK 36-22-00-810-842-A	Engine 1 Pylon Leak
AMM 54-53-11-200-001	Detailed Inspection of the Pressure Relief Door

3. Fault Confirmation
Subtask 36-14-00-700-058-A ** ON A/C NOT FOR ALL

A. Not Applicable
(1) No confirmation test is necessary.

4. Fault Isolation
Subtask 36-14-00-810-058-A ** ON A/C NOT FOR ALL

A. Maintenance Procedure
(1) Do the steps that follow:
(a) Do the detailed inspection of pressure relief door 471BL AMM 54-53-11-200-001.
(b) Do the trouble-shooting procedure for an air leak in the engine 1 pylon (Ref. TSM TASK 36-22-00-810-842).
(c) After the subsequent flight, make sure that the fault does not continue.

5. Close-up
Subtask 36-14-00-860-063-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Put the aircraft back to its initial configuration.
(2) Make sure that the work area is clean and clear of tools and other items.

[Rev.8 from Aug 2018] 2026.04.04 04:34:01 UTC