Removal of the Fan-Cowl Hold-Open Rod [IAE]

TASK 71-13-12-000-010-A
Removal of the Fan-Cowl Hold-Open Rod

WARNING: BE CAREFUL IF YOU REMOVE THE HOLD OPEN ROD WHEN THE WIND SPEED IS 30 MPH (48KM/H) OR MORE. INJURY AND/OR DAMAGE TO THE ENGINE CAN OCCUR IF THE WIND MOVES THE FAN COWLS.

WARNING: DO NOT REMOVE THE HOLD OPEN RODS TOGETHER. YOU MUST KEEP ONE HOLD OPEN ROD IN POSITION. IF NOT, THE COWL DOORS CAN CLOSE QUICKLY AND CAUSE INJURY TO PERSONS AND/OR DAMAGE TO THE COWL.

WARNING: WHEN YOU REMOVE A HOLD OPEN ROD, YOU MUST IMMEDIATELY INSTALL A REPLACEMENT. YOU CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO THE COWL.

FIN: 1420KM1 ** ON A/C NOT FOR ALL
FIN: 1420KM2 ** ON A/C NOT FOR ALL
FIN: 1420KM3 ** ON A/C NOT FOR ALL
FIN: 1420KM4 ** ON A/C NOT FOR ALL

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

REFERENCE	QTY	DESIGNATION
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
Fan-Cowl Hold-Open Rod

3. Job Set-up
Subtask 71-13-12-941-051-A ** ON A/C NOT FOR ALL

A. 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(2) 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(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).

Subtask 71-13-12-010-052-A ** ON A/C NOT FOR ALL

B. Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR

4. Procedure
Subtask 71-13-12-020-051-A ** ON A/C NOT FOR ALL

A. Removal of the hold open rod
(1) Remove the hold open rod.
(a) Remove the bolts (6), the washers (7) and the nuts (3).
(b) Remove the hold open rod (1) from the fan cowl.
(2) Remove and keep these parts for installation to the replacement hold open rod.
(a) Remove the nut (5) and the washer (4).
(b) Remove the anchorage bracket (2) from the hold open rod (1).
(3) If the replacement hold open rods are not immediately installed, do the steps that follow:
(a) Close the cowling (Ref. AMM TASK 71-13-00-410-010)
(b) Make a warning placard in red letters on a white background FORWARD (AFT) HOLD OPEN ROD REMOVED. Temporarily attach the placard adjacent to the L (R) cowling latches.

[Rev.10 from 2021] 2026.04.01 02:29:27 UTC