Check Pressure at Life Raft Pressure Gauge (If Configuration Includes Visible Gauge)

TASK 25-66-41-210-001-A
Check Pressure at Life Raft Pressure Gauge (If Configuration Includes Visible Gauge)

ZONE: 200
FIN: 7517MM ** ON A/C NOT FOR ALL

1. Reason for the Job
Refer to the MPD TASK: 256600-02
CHECK PRESSURE AT LIFE RAFT PRESSURE GAUGE (IF CONFIGURATION INCLUDES VISIBLE GAUGE)
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE

B. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
TASK 25-66-00-00	FLOATATION AND SURVIVAL EQUIPMENT - DESCRIPTION AND OPERATION

3. Job Set-up
Subtask 25-66-41-861-050-A ** ON A/C NOT FOR ALL

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

Subtask 25-66-41-010-051-A ** ON A/C NOT FOR ALL

B. Get Access
(1) For the location of the life raft(s), refer to Para. Component Location (Ref. AMM D/O 25-66-00-00).
(2) Remove the supplemental life raft(s) from the related compartment(s).

NOTE: The location of the supplemental life raft(s) is shown with placard(s), which is (are) installed on the outside of the related compartment(s).

4. Procedure
Subtask 25-66-41-210-052-A ** ON A/C NOT FOR ALL

A. Visual Check Procedure
(1) Make sure that the pressure gage shows the correct pressure related to the temperature.
(2) For the table of pressure values related to different temperatures refer to the manufacturer's Component Maintenance Manual (CMMv) of the life raft.

NOTE: To find the CMM reference, you can use the applicable P/N in the IPC. You can use the FIN in the task title to find the applicable P/N.

(3) If the indicated pressure is above or below the limits, replace the supplemental life raft.

5. Close-up
Subtask 25-66-41-410-051-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Put the supplemental life raft(s) in the related compartment(s).
(2) Make sure that the work area is clean and clear of tools and other items.

Subtask 25-66-41-862-050-A ** ON A/C NOT FOR ALL

B. De-energize the ground service network
(Ref. AMM TASK 24-42-00-862-001).

[Rev.10 from 2021] 2026.03.31 23:41:42 UTC