(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

 D.
Access

 (1)  
Location Zones
 412 Engine 1
 422 Engine 2
 432 Engine 3
 442 Engine 4

 (2)  
Access Panels
 416 and 417 Thrust Reverser Halves - Engine 1
 426 and 427 Thrust Reverser Halves - Engine 2
 436 and 437 Thrust Reverser Halves - Engine 3
 446 and 447 Thrust Reverser Halves - Engine 4

 E.
Prepare to Do the Cable External Jacket or Braid Repair

 S 018-107-N00
 (1)  Open the fan cowl panels (AMM 71-11-04/201).
 S 048-108-N00
 WARNING: DO THE THRUST REVERSER DEACTIVATION PROCEDURE TO PREVENT THE
_______ OPERATION OF THE THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
 (2)  
Do this procedure: Thrust Reverser Deactivation for Ground
 Maintenance (AMM 78-31-00/201).

 (3)  
Open the core cowl panels (AMM 71-11-06/201).

 S 018-109-N00
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 71-50-00
 ALL  ú ú N01 Page 817 ú Oct 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 018-110-N00
 WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (4)  
Open the thrust reversers (AMM 78-31-00/201).

 S 868-111-N00

 (5)  
Remove electrical power (AMM 24-22-00/201).

 S 868-112-N00

 (6)
Make sure the engine was not operated for a minimum of 5 minutes.

 F.
Do the Cable Insulated Jacket and Braid Repair.

 S 018-153-N00
 WARNING: DO NOT USE HEAT GUNS, SOLDERING GUNS, AND SOLDERING IRONS FOR
_______ THE ON-WING REPAIRS. THEY ARE NOT RESISTANT TO EXPLOSION AND CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
 (1)  
Remove the lacing tape and the harness clamps from the wire harness as necessary to get access to the damaged cable.

 S 358-114-N00

 (2)  
Clean the cable 3 inches (75 mm) on each side of the damage.

 S 438-115-N00

 (3)  
Wind one layer of the electrical silicone tape (Scotch 92) around the cable with 20% overlap on each turn of the tape.

 (a)  Extend the tape 1.0 inch (2.5 cm) more on each side of the worn area of the insulated jacket.
 S 438-116-N00
 (4)  
Wind one layer of the electrical silicone tape (Scotch 62) over the first layer of tape with a 20% overlap on each turn of the tape.

 (a)  Extend the tape 0.5 inch (13 mm) more on each side of the first layer of tape.

 (5)  
Install the lacing tape to the wire harness as necessary.

 S 438-118-N00

 (6)  
Install the harness clamps that you removed.

 G.
Put the Airplane Back to its Usual Condition

 S 438-117-N00
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 71-50-00
 ALL  ú ú N01 Page 818 ú Oct 10/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 418-119-N00
 WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO CLOSE THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (1)  
Close the thrust reversers (AMM 78-31-00/201).

 S 418-120-N00

 (2)  
Close the core cowl panels (AMM 71-11-06/201).

 S 418-121-N00

 (3)  
Close the fan cowl panels (AMM 71-11-04/201).

 S 448-122-N00

 (4)  
Do the activation procedure for the thrust reversers
 (AMM 78-31-00/201).

 TASK 71-50-00-358-123-N00
　
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