Removal of the Emergency Ram Air Inlet Actuator

TASK 21-55-51-000-001-A
Removal of the Emergency Ram Air Inlet Actuator

FIN: 7HZ

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)-ADJUSTABLE
No specific	AR	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
191AB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
Emergency Ram Air Inlet Actuator

3. Job Set-up
Subtask 21-55-51-861-050-A

A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

Subtask 21-55-51-865-050-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	AIR COND/RAM/AIR/INLET	1HZ	D10

Subtask 21-55-51-010-050-A

C. Get Access
(1) Put the ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE in position at the access panel 191AB.
(2) Remove the access panel 191AB.

4. Procedure
Subtask 21-55-51-020-050-A

A. Removal of the Actuator
(1) Disconnect the bonding strip (9)
(a) Remove the nut (8).
(b) Remove the screw (11) and the washer (10).
(2) Disconnect the electrical connector (16).
(3) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(4) Remove and discard the cotter pins (1).
(5) Remove the nut (13) and the washer (12).
(6) Remove the bolt (14).
(7) Remove the nut (2) and the washer (3).
(8) Hold the actuator (15) and remove the bolt (5) and the washer (4).
(9) Remove the actuator (15), the bushings (6) and the washers (7).

[Rev.10 from 2021] 2026.04.02 06:11:33 UTC