(b) P414 Power Distribution Center - Left
S 414-029-N00
WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00/201 WHEN YOU CLOSE THE
_______ THRUST REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
(2)
Close the right thrust reverser (AMM 78-31-00/201).
S 414-024-N00
(3)
Close the right core cowl panel (AMM 71-11-06/201).
S 414-025-N00
(4)
Close the right fan cowl panel (AMM 71-11-04/201).
S 444-026-N00
(5)
Do the activation procedure for the thrust reverser (AMM 78-31-00/201).
S 714-015-N00
(6)
Do the necessary tests for the EEC thermocouple probe (TT3) as shown in the Power Plant Test Reference Table (AMM 71-00-00/501).
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A
747-400 MAINTENANCE MANUAL
SUPPLEMENTAL CONTROL UNIT (SCU) - MAINTENANCE PRACTICES
_______________________________________________________
1. General_______
A. This procedure includes two tasks. The first task gives the instructions for the removal and installation of the supplemental control unit (SCU) from the temporary shipment position on the left side of the fan case to the flight position on the right side of the fan case. The second task gives the instructions for the removal and installation of the SCU from the flight position on the right side of the fan case to the temporary shipment position on the left side of the fan case.
TASK 73-21-15-802-001-N00
2. Remove and Install the Supplemental Control Unit (SCU) from the Storage_______________________________________________________________________ Position to the Flight Position on the Fan Case_______________________________________________
A. Equipment
(1) M303, M305, or M307 Bergen Mechanical Crimper
Bergen Cable Technologies Inc.
170 Gregg St.
P.O. Box 1300
Lodi, NJ 07644-9982
(2)
Pliers, soft-jawed - TG-69, Glenair or equivalent
(3)
Wrench, Strap - TG-70, Glenair or equivalent
B.
Consumable Materials
(1)
D00137 Engine Oil, PWA 521
(2)
G02334 Lockwire, AS3214-02 (P05-289) 0.032 inch (0.813 mm)
(3)
G02332 Ferrule, Safety (P05-292) (Optional)
(4)
G02335 Cable, Safety (P05-291) (Optional)
(5)
Alcohol, Denatured Ethyl (AMS 3002) (P11-009)
C.
References
(1)
AMM 71-00-00/501, Power Plant
(2)
AMM 71-11-04/201, Fan Cowl Panels
D.
Access
(1)
Location Zones
410 Engine No. 1
420 Engine No. 2
430 Engine No. 3
440 Engine No. 4
(2)
Access Panels
413 and 414 Fan Cowl Panels - Engine No. 1
423 and 424 Fan Cowl Panels - Engine No. 2
433 and 434 Fan Cowl Panels - Engine No. 3
443 and 444 Fan Cowl Panels - Engine No. 4
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A
747-400 MAINTENANCE MANUAL
E. Procedure
NOTE: It is necessary to have two persons to do this procedure.
____ S 012-002-N00
(1)
Open the fan cowl panels (AMM 71-11-04/201).
S 022-003-N00
(2)
Remove the SCU from the storage position on the left side of the engine:
(a)
Remove the two bolts, washers and nuts from the lower mount bracket for the supplemental control unit (SCU) on Flange A1.
