(a)  
Examine the EEC programming plug and receptacle for bent pins or sockets, and contamination. 1) If it is necessary, carefully make the bent pins straight. 2) If it is necessary, clean the contamination.

 (b)  
Replace the EEC which has damaged sockets (AMM 73-21-04/401).

 (c)  
Align the keyway and push the EEC programming plug into the receptacle.

 (d)  
While you push in on the EEC programming plug, tighten the coupling ring with your hand.

 NOTE: The EEC programming plug is correctly installed when you
____ cannot see the color band nearest to the threads.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 73-21-08
 ALL  ú ú N02 Page 405 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 434-023-N00
 (3)  
Attach the lanyard for the EEC programming plug to the top rear support bracket of the EEC with a rivet pin and collar.

 E.
Put the Airplane Back to Its Usual Condition.

 S 414-010-N00
 (1)  
Close the right fan cowl panel (AMM 71-11-04/201).

 S 864-015-N00

 (2)  
For the applicable engine, remove the DO-NOT-CLOSE tags and close these circuit breakers as follows:

 (a)  
P6 Main Power Distribution Panel
 1) 6G15 SCU ALT PWR ENG 1
 2) 6G23 ENG SCU 1
 3) 6G16 SCU ALT PWR ENG 2
 4) 6G24 ENG SCU 2
 5) 6G17 SCU ALT PWR ENG 3
 6) 6G25 ENG SCU 3
 7) 6G18 SCU ALT PWR ENG 4
 8) 6G26 ENG SCU 4

 S 864-013-N00
 (3)  
Operate the EEC MAINT ENG 1 (2, 3, or 4) POWER switch on the pilot's overhead maintenance panel, P461, with the steps that follow:

 (a)  
Set the EEC MAINT ENG 1 (2, 3, or 4) POWER switch to TEST.

 (b)  
After 10 seconds, set the switch to NORM.

 S 714-012-N00
 (4)  Do the test of the EEC Programming Plug that is shown in the Power Plant Test Reference Table (AMM 71-00-00/501).
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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 ALL  ú ú N03 Page 406 ú Feb 15/99
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
EEC FUEL TEMPERATURE THERMOCOUPLE PROBE - REMOVAL/INSTALLATION
______________________________________________________________
 1.  General
_______
 A.  This procedure gives the instructions to remove and install the thermocouple probe for the EEC fuel temperature (fuel temperature probe).
 B.  The fuel temperature probe is installed on the top end of the fuel filter housing on the fuel pump. The fuel pump is attached on the forward face of the main gearbox at the 4 o'clock position.
 C.  You can get access to the fuel temperature probe through the right thrust reverser.
 TASK 73-21-09-004-001-N00
 2.  Remove the EEC Fuel Temperature Thermocouple Probe (Fig. 401)
__________________________________________________
 A.  Standard Tools and Equipment
 (1)
Container - 5 gallon (19 liters) capacity, to collect the fuel

 B.  
References

 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 71-11-04/201, Fan Cowl Panels

 (3)  
AMM 71-11-06/201, Core Cowl Panels

 (4)  
AMM 78-31-00/201, Thrust Reverser System

 C.  
Access

 (1)  
Location Zone 412 Engine 1 - Main Gearbox Fwd Face 4 o'clock 422 Engine 2 - Main Gearbox Fwd Face 4 o'clock 432 Engine 3 - Main Gearbox Fwd Face 4 o'clock 442 Engine 4 - Main Gearbox Fwd Face 4 o'clock

 (2)  
Access Panel
 416 Right Thrust Reverser Half - Engine 1
 426 Right Thrust Reverser Half - Engine 2
 436 Right Thrust Reverser Half - Engine 3
 446 Right Thrust Reverser Half - Engine 4
　
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