Removal of the Fan Cowl Doors [CFMB]

TASK 71-13-11-000-041-A
Removal of the Fan Cowl Doors

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.

CAUTION: THIS PART IS A REMOVABLE STRUCTURAL COMPONENT (RSC), WHICH CAN BE MOVED BETWEEN AIRCRAFT. THUS IT CAN HAVE DIFFERENT OPERATION CONDITIONS AND A DIFFERENT LIFE RECORD (FLIGHT HOURS/FLIGHT CYCLES/CALENDAR) FROM THE AIRCRAFT IT IS INSTALLED ON OR REMOVED FROM. THE OPERATOR IS RESPONSIBLE FOR THE SPECIFIC TRACKING AND CONTINUED AIRWORTHINESS OF REMOVABLE STRUCTURAL COMPONENTS. INCORRECT MAINTENANCE OF THESE COMPONENTS CAN CAUSE A RISK FOR THE FLIGHT SAFETY.

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

1. Reason for the Job

NOTE: SB RA32071-163 (equivalent to Airbus service bulletin SB 71-1068) introduces a lockable latch in the forward position (Latch No.1) that must be opened and closed and locked with a key and flag assembly. The key and flag assembly are stowed in the cockpit and must not be used if there is damage to the key or flag. The key always has to stay with the latch.

NOTE: If the fan cowl to be removed has a strake installed, the replacement fan cowl must also have a strake installed.

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

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 1M(3 FT)
No specific	AR	PAD - UNIVERSAL ATTACH
No specific	AR	WARNING NOTICE(S)
RSE1113	1	SLING-FAN COWL
RSE1115	1	DOLLY-FAN COWL

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 71-13-00-010-040-B	Opening of the Fan Cowl Doors
Fan Cowl Door

3. Job Set-up
Subtask 71-13-11-941-050-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 71-13-11-010-050-A ** ON A/C NOT FOR ALL

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

4. Procedure
Subtask 71-13-11-020-055-A ** ON A/C NOT FOR ALL

A. Remove the filler plugs of the hoist points from the fan cowl door . Keep the plugs for installations when the task is completed.

Subtask 71-13-11-480-054-A ** ON A/C NOT FOR ALL

B. Installation of the Tooling
(1) Install the PAD - UNIVERSAL ATTACH (15) in the hoist points of the fan cowl door (10).
(2) Attach the RSE1113 SLING-FAN COWL (5) to the universal attach pads (15).

Subtask 71-13-11-020-050-A ** ON A/C NOT FOR ALL

C. Removal of the Fan Cowl

CAUTION: DO NOT LIFT OR LOWER THE FAN COWL DOOR AFTER THE REMOVAL OF THE HINGE BOLTS OR THE UPPER DOOR SEAL MAY BE DAMAGED. MOVE THE DOOR AWAY FROM THE PYLON AFTER THE HINGE BOLTS ARE REMOVED TO AVOID SEAL DAMAGE.

(1) Lift the fan cowl door (10) until the weight of the door is supported by the fan cowl sling (5).
(2) Remove the cotter pins (40) from the hinge bolts (20).
(3) Remove the hinge bolts (20), the washers (30), (45), and the nuts (35).
(4) Remove the fan cowl door (10) from the engine and put it on the RSE1115 DOLLY-FAN COWL.

Subtask 71-13-11-080-056-A ** ON A/C NOT FOR ALL

D. Removal of the Tooling
(1) Remove the RSE1113 SLING-FAN COWL from the PAD - UNIVERSAL ATTACH (15).
(2) Remove the PAD - UNIVERSAL ATTACH (15) from the fan cowl door (10).

Subtask 71-13-11-420-056-A ** ON A/C NOT FOR ALL

E. Install the filler plugs at the hoist points.

[Rev.10 from 2021] 2026.04.01 06:43:02 UTC