Installation of the Fan Cowl Locator [IAE]

TASK 71-11-11-400-011-A
Installation of the Fan Cowl Locator

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

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 2M (6 FT) - ADJUSTABLE
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 79.2 and 64.8 lbf.in (0.89 and 0.73 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V01-002)	cleaning fluid
(Material No.V04-004)	jointing compound
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
431AL, 437AL, 438AR
FOR [1000EM2] (ENGINE-2)
441AR, 447AL, 448AR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 71-11-11-000-011-A	Removal of the Fan Cowl Locator
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 Locator

3. Job Set-up
Subtask 71-11-11-860-052-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
(2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
(3) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position at zone:
(a) FOR [1000EM1] (ENGINE-1)
431AL
(b) FOR [1000EM2] (ENGINE-2)
441AR

Subtask 71-11-11-010-061-A ** ON A/C NOT FOR ALL

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

Subtask 71-11-11-110-061-A ** ON A/C NOT FOR ALL

C. Cleaning
(1) Use a clean Textile-Lint free Cotton - (Material No.14SBA1) , made moist with cleaning fluid (Material No.V01-002) to clean the mating surfaces of these parts:
(a) The guide bar
(b) The locator body
(c) The shim
(d) The guide angle
(e) The throat washer
(f) The bracket
(g) The guide (Post SB71-0259)

4. Procedure
Subtask 71-11-11-210-068-A ** ON A/C NOT FOR ALL

A. Do a dimensional check of the Fan Cowl Locator.

NOTE: Make sure that the task (Ref. AMM TASK 71-11-11-000-011) has been completed. The shim configuration must be recorded and you must also keep the locator body (6) to use in this Para 4. A.

Fan Cowl Locator ** ON A/C NOT FOR ALL

(1) On the used locator body:
(a) Measure the dimension A. Record this as A1.
(b) Measure the dimension B. Record this as B1.

NOTE: Make sure that the surface on which the measurement is being done has not been worn or damaged.

(c) Calculate C1 as the difference between A1 and B1 (C1=A1-B1) and record it.
(2) On the new locator body:
(a) Measure the dimension A. Record this as A2.
(b) Measure the dimension B. Record this as B2.
(c) Calculate C2 as the difference between A2 and B2 (C2=A2-B2) and record it.
(3) Use the same locator body shim(s) (7) configuration as recorded during the removal task.
(a) The dimension C1-C2 gives the thickness.
1 Remove the necessary shim(s) (7) if the number is negative, or add if result is positive.
2 Change the thickness calculated into the necessary number of shim(s) (7) to add or to remove.
3 Use the new shim(s) (7) configuration in 4.B.

Subtask 71-11-11-420-054-A ** ON A/C NOT FOR ALL

B. Install the Fan Cowl Locator.

Fan Cowl Locator ** ON A/C NOT FOR ALL

Pre SB71-0259
(1) Apply jointing compound (Material No.V04-004) to the mating surfaces of the parts.
(2) Attach the guide bar (5), the locator body (6), the shim (7) and the throat washer (4) to the angle guide (8) and the bracket (9). Use the bolts (3), the washers (2) and the nuts (1).
(3) TORQUE the nuts (1) to between 79.2 and 64.8 lbf.in (0.89 and 0.73 m.daN )

(Ref. AMM TASK 70-23-11-911-013).

SB71-0259
(4) Apply jointing compound (Material No.V04-004) to the mating surfaces of the parts. Do not apply jointing compound to the blocker bar (12).
(5) Attach the guide (10), the spring (11), the blocker bar (12), the guide bar (5), the locator body (6), the shim (7) and the throat washer (4) to the angle guide (8) and the bracket (9). Use the bolts (3), the washers (2) and the nuuts (1).
(6) TORQUE the nuts (1) to between 79.2 and 64.8 lbf.in (0.89 and 0.73 m.daN )

(Ref. AMM TASK 70-23-11-911-013).

Subtask 71-11-11-710-052-A ** ON A/C NOT FOR ALL

C. Do an operational test of the fan cowls (Ref. AMM TASK 71-13-00-410-010).

5. Close-up
Subtask 71-11-11-942-056-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) Remove the access platform(s).
(3) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(4) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 02:28:49 UTC