Installation of the Anti-Ice Vent Panel [CFMI]

TASK 71-11-00-400-044-A
Installation of the Anti-Ice Vent Panel

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

ZONE: 400

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 1M(3 FT)
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 2.3 and 2 lbf.ft (0.31 and 0.27 m.daN )

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
Inlet-Cowl Anti-Ice Vent-Panel

3. Job Set-up
Subtask 71-11-00-941-075-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on ENG control panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).

Subtask 71-11-00-010-071-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL, 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL, 448AR
(2) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.

4. Procedure
Subtask 71-11-00-420-064-A ** ON A/C NOT FOR ALL

A. Installation of the Anti-Ice Vent Panel
(1) Clean the sealant residue from the edge of the anti-ice vent panel. Refer to Nacelle SRM 54-10-00 Repair 10 (Collins Cage Code 51563).
(2) Install the bolts (5) and (10) and the anti-ice vent panel.
(3) TORQUE the bolts (5) and (10) to between 2.3 and 2 lbf.ft (0.31 and 0.27 m.daN )

.
(4) Apply the aerodynamic sealant around the anti-ice vent panel assembly perimeter. Refer to Nacelle SRM 54-10-00 Repair 10 (Collins Cage Code 51563).

5. Close-up
Subtask 71-11-00-410-067-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL, 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL, 448AR
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.02 06:31:53 UTC