Resetting of the Visual Indicator [CFMB]

TASK 79-21-30-440-001-A
Resetting of the Visual Indicator

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

1. Reason for the Job

NOTE: This deactivation task is not related to an AFM-CDL/MMEL item.

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

REFERENCE	QTY	DESIGNATION
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP8001)	lockwire 0.032 in. (0.8 mm) dia.
(Material No.CP8002)	lockwire 0.032 in. (0.8 mm) dia

C. Work Zones and Access Panels

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

D. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-040-B	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-B	Closing of the Fan Cowl Doors
Resetting of the Visual Indicator (PRE SB CFM 79-0014)
Resetting of the Visual Indicator (POST SB CFM 79-0014 or POST SB CFM 79-0023 or POST SB CFM 79-0036)

3. Job Set-up
Subtask 79-21-30-941-050-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 79-21-30-865-050-A ** ON A/C NOT FOR ALL

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 1000EM1 (ENGINE1)
121VU	ENGINE/ENG1/OIL/CHIP/DET	4EN1	N38
FOR FIN: 1000EM2 (ENGINE2)
121VU	ENGINE/ENG2/OIL/CHIP/DET	4EN2	N43

Subtask 79-21-30-010-050-A ** ON A/C NOT FOR ALL

C. Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR

4. Procedure
Subtask 79-21-30-440-050-A ** ON A/C NOT FOR ALL

A. Resetting of the visual indicator

PRE SB CFM 79-0014

Resetting of the Visual Indicator (PRE SB CFM 79-0014) ** ON A/C NOT FOR ALL

(1) Cut and remove the lockwire.
(2) Remove the cover assembly (20) from the visual indicator.
(3) Push the red pop-out type indicator (10) until it is kept by the magnet.
(4) Install the cover assembly (20) on the visual indicator. Tighten by hand.
(5) Safety the cover assembly (20) with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.

END OF PRE SB CFM 79-0014

POST SB CFM 79-0014 or POST SB CFM 79-0023 or POST SB CFM 79-0036

Resetting of the Visual Indicator (POST SB CFM 79-0014 or POST SB CFM 79-0023 or POST SB CFM 79-0036) ** ON A/C NOT FOR ALL

(6) Push the protective cap (30).

END OF POST CFM 79-0014 or POST SB CFM 79-0023 or POST SB CFM 79-0036

5. Close-up
Subtask 79-21-30-410-050-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 WARNING NOTICE(S).
(4) Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
4EN1, 4EN2.

[Rev.10 from 2021] 2026.04.01 13:14:06 UTC