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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400
MAINTENANCE MANUAL

 (2)  Access Panel 191AJ Wing/Body Fairing 192AJ Wing/Body Fairing 191CL Access Panel 192CR Access Panel 191EL Air-Conditioning Access Panel 191KL Fairing Access Panel 192KR Fairing Access Panel 191JL Pressure Relief Panel 191NL Air-Conditioning Access Door 192NR Air-Conditioning Access Door 191ML Air-Conditioning Access Panel 192MR Air-Conditioning Access Panel 192HR Air-Conditioning Access Door 415 Left Thrust Reverser Half - Engine 1 425 Left Thrust Reverser Half - Engine 2 435 Left Thrust Reverser Half - Engine 3 445 Left Thrust Reverser Half - Engine 4 452FL Access Door, Mid Lower Strut Aft - Engine 1 452ER Access Door, Forward Lower Midspar Pressure Relief -
Engine 1 452GR Access Door, Aft Lower Midspar Pressure Relief -
Engine 1 462FL Access Door, Mid Lower Strut Aft - Engine 2 462HL Access Door, Lower Midspar Aft Pressure Relief -
Engine 2 472FL Access Door, Mid Lower Strut Aft - Engine 3 472HL Access Door, Lower Midspar Aft Pressure Relief -
Engine 3 482FL Access Door, Mid Lower Strut Aft - Engine 4 482ER Access Door, Forward Lower Midspar Presure Relief -
Engine 4 482GR Access Door, Aft Lower Midspar Pressure Relief -Engine 4
 F. Procedure
 S 016-092
 (1)
Remove these section 42 wing/body fairings (AMM 06-09-02/201):

 (a)  
191AJ

 (b)  
192AJ.

 S 016-093
 (2)  
Open (or remove, as applicable) these section 44 access doors and panels (AMM 06-09-03/201):

 (a)  
191CL and 192CR

 (b)  
191EL

 (c)  
191JL

 (d)  
191KL and 192KR

 (e)  
191ML and 192MR

 (f)  
191NL and 192NR

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
 (g)  192HR.
 S 016-094
 (3)  
Open these strut access panels (AMM 06-09-09/201):

 (a)  
452ER, 452FL, and 452GR

 (b)  
462FL and 562HL

 (c)  
472FL and 472HL

 (d)  
482ER, 482FL, and 482GR.

 S 016-097
 WARNING: DO THE DEACTIVATION PROCEDURE FOR THE THRUST REVERSER TO
_______ PREVENT THE OPERATION OF THE THRUST REVERSER. ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
 (4)  
Open the thrust reverser halves (AMM 78-31-00/201).

 S 866-098

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

 S 866-099

 (6)  
Make sure that these circuit breakers are closed:

 (a)  
P6 Main Power Distribution Panel
 1) 6F19 PILOTS MISC IND 1
 2) 6F20 PILOTS MISC IND 2
 3) 6F28 ZONE TEMP CONT AC
 4) 6F29 ZONE TEMP CONT DC
 5) 6F33 PACK TEMP CONT AC-A
 6) 6F34 PACK TEMP CONT AC-B
 7) 6F35 PACK TEMP CONT DC-A
 8) 6F36 PACK TEMP CONT DC-B
 9) 6H20 L 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) 6J10 NACELLE ANTI-ICE 1
 16) 6J11 NACELLE ANTI-ICE 2
 17) 6J12 NACELLE ANTI-ICE 3
 18) 6J13 NACELLE ANTI-ICE 4

 (b)  
P7 Overhead Circuit Breaker Panel
 1) 7F09 EIU L
 2) 7F10 EIU C
 3) 7F15 EIU R
 4) 7H09 CARGO HEAT AFT

 (c)  
P180 DC Power Distribution Panel
 1) 180F01 FLOW CONT VLV PACK 2
 2) 180F27 ALTN TEMP CONT
 3) 180J01 FLOW CONT VLV PACK 1

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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