Open Pressure Relief Door on Engine 1 Fan Cowl

TASK 36-14-00-810-813-A
Open Pressure Relief Door on Engine 1 Fan Cowl

1. Possible Causes

pressure relief door 438BR

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE
No specific	AR	WARNING NOTICE(S)

3. Fault Confirmation
Subtask 36-14-00-700-062-A ** ON A/C NOT FOR ALL

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

Subtask 36-14-00-860-069-A ** ON A/C NOT FOR ALL

B. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1 shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1 pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1.
(c) Put an ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position in zone

4. Fault Isolation
Subtask 36-14-00-810-062-A ** ON A/C NOT FOR ALL

A. Maintenance Procedure
(1) Do these steps:
(a) Do a detailed visual inspection of the pressure relief door 438BR :
1 Make sure that there is no damage to these components:

The hinges
The spring loaded latches
The lanyards
The door panel.

2 If necessary, replace damaged component(s).
(b) Examine the engine 1 for damage and/or air leakage. Carefully examine the air ducts. Repair as necessary.
(c) After the subsequent flight, make sure that the fault does not continue.

5. Close-up
Subtask 36-14-00-860-070-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform.
(3) Remove the warning notice(s).

[Rev.8 from Aug 2018] 2026.04.04 04:34:02 UTC