TASK 24-22-00-860-814
5. Remove External Power
(Figure 201, Figure 202)
A. General
(1) This task has these procedures:
(a) Remove external power from the ground service buses.
(b) Remove external power from the 115V ac transfer buses.
B. Location Zones
Zone Area
211 Flight Compartment - Left
212 Flight Compartment - Right
C. Procedure
SUBTASK 24-22-00-860-007
(1) Do these steps to remove external power from the ground service buses:
(a) Push the GROUND SERVICE switch on the FWD ATTENDANT panel, P13.
1) Make sure the light in the GROUND SERVICE switch goes off.
(b) Remove power from the external power cable.
(c) Make sure these lights on the P19 panel go off:
1) EXTERNAL POWER CONN
2) EXTERNAL POWER NOT IN USE
WARNING
REMOVE ELECTRICAL POWER FROM THE EXTERNAL POWER CABLE
BEFORE YOU REMOVE THE CABLE FROM THE AIRPLANE. INJURY TO
PERSONS CAN BE CAUSED BY AN ELECTRICAL SHOCK.
(d) Remove the external power cable.
(e) Close the External Power Receptacle Door.
SUBTASK 24-22-00-860-008
(2) Do these steps to remove external power from the 115V AC transfer buses:
(a) Set the GRD PWR switch on the P5-4 panel to the OFF position.
(b) Make sure the GRD POWER AVAILABLE light on the P5-4 stays on.
(c) Make sure these lights on the P5-4 panel come on:
1) 1 SOURCE OFF
2) 2 SOURCE OFF
3) 1 TRANSFER BUS OFF
4) 2 TRANSFER BUS OFF
(d) Make sure the EXTERNAL POWER NOT IN USE light on the P19 panel comes on.
(e) Remove power from the external power cable.
(f) Make sure the EXTERNAL POWER CONN light on the P19 panel goes off.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
24-22-00
Page 208
D633A101-ILF Oct 15/2017
ECCN 9E991 BOEING PROPRIETARY - Copyright © Unpublished Work - See title page for details
EFFECTIVITY
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