(2)
AMM 36-00-00/201, Pneumatic System
(3)
AMM 36-11-00/501, Engine Bleed Air Supply System
(4)
AMM 36-11-04/201, Pressure Regulating and Shutoff Valve
(5)
AMM 36-12-01/401, Engine Bleed Air Precooler
(6)
AMM 45-10-00/201, Central Maintenance Computer System
(7)
AMM 49-11-00/201, Auxiliary Power Unit
(8)
AMM 49-61-07/401, APU Controller
(9)
AMM 71-11-04/201, Fan Cowl Panels
(10)
AMM 71-11-06/201, Core Cowl Panels
(11)
AMM 78-31-00/201, Thrust Reverser SystemAccess
(1)
Location Zone 412 Engine 1 - Main Gearbox Aft Face 5 o'clock 422 Engine 2 - Main Gearbox Aft Face 5 o'clock 432 Engine 3 - Main Gearbox Aft Face 5 o'clock 442 Engine 4 - Main Gearbox Aft Face 5 o'clock
(2)
Access Panel 415 and 416 Thrust Reverser Halves - Engine 1 417 and 418 Core Cowl Panels - Engine 1 425 and 426 Thrust Reverser Halves - Engine 2 427 and 428 Core Cowl Panels - Engine 2 435 and 436 Thrust Reverser Halves - Engine 3 437 and 438 Core Cowl Panels - Engine 3 445 and 446 Thrust Reverser Halves - Engine 4 447 and 448 Core Cowl Panels - Engine 4
Prepare to Do the Leakage Check of the Engine Bleed Air Supply System
S 866-016
(1) Supply the electrical power (AMM 24-22-00/201).
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S 866-017
(2)
Make sure these circuit breakers are open and attach a DO-NOT-CLOSE tag:
(a)
On the main power distribution panel, P6: 1) 6F01, ENG 1 IGN 1 2) 6F02, NG 2 IGN 1 3) 6F03, ENG 3 IGN 1 4) 6F04, ENG 4 IGN 1 5) 6G19, STBY IGN ENG 1 6) 6G20, STBY IGN ENG 2 7) 6G21, STBY IGN ENG 3 8) 6G22, STBY IGN ENG 4 9) 6J18, ENG START AIR CONT 10) 6K18, APU ALTN CONT 11) 6K19, ENG 1 IGN 2 12) 6K20, ENG 2 IGN 2 13) 6K21, ENG 3 IGN 2 14) 6K22, ENG 4 IGN 2 15) 6L10, ENG 1 FUEL CONT VLV 16) 6L11, ENG 2 FUEL CONT VLV 17) 6L12, ENG 3 FUEL CONT VLV 18) 6L13, ENG 4 FUEL CONT VLV
S 866-018
(3)
Make sure these circuit breakers are closed:
(a)
On the main power distribution panel, P6: 1) 6C08, WING ANTI-ICE VLV 2) 6C09, WING ANTI-ICE CONT 3) 6F28, ZONE TEMP CONT AC 4) 6F29, ZONE TEMP CONT DC 5) 6F30, MASTER TRIM AIR CONT 6) 6F33, LWR CARGO A/C CONTROL 7) 6F34, CARGO A/C CONT PCA 8) 6H20, L ISO VLV AIR SUPPLY PWR 9) 6H22, APU ISO VLV AIR SUPPLY PWR 10) 6H24, R ISO VLV AIR SUPPLY PWR 11) 6H32, ENG 1 AIR SUPPLY CONT 12) 6H33, ENG 2 AIR SUPPLY CONT 13) 6H34, ENG 3 AIR SUPPLY CONT 14) 6H35, ENG 4 AIR SUPPLY CONT 15) 6H36, APU VLV AIR SUPPLY CONT 16) 6G33, LWR CARGO ZONE TEMP SENSORS
(b)
On the overhead circuit breaker panel, P7: 1) 7H09, CARGO HEAT AFT
(c)
On the DC power distribution panel, P180: 1) 180F01, FLOW CONT VLV PACK 2 2) 180F27, ALTN TEMP CONT 3) 180J01, FLOW CONT VLV PACK 1 4) 180J16, FLOW CONT VLV PACK 3
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(d) On the main power distribution panel, P414:
1) 414F02, LWR CARGO AIR COND VLVS
(e) On the main power distribution panel, P415:
1) 415L29, AFT CARGO HT PWR
S 866-019
(4) Put these switches in the on the P5 overhead panel to the OPEN position:
(a) L ISLN VALVE
(b) R ISLN VALVE
S 866-020
(5) Put these switches in the on the P5 overhead panel to the ON position:
(a) APU VALVE
S 866-021
(6) Put these switches in the on the P5 overhead panel to the OFF position:
(a) PACKS 1
(b) PACKS 2
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