(1)
AMM 71-11-06/201, Core Cowl Panel
(2)
AMM 78-31-00/201, Thrust Reverser System
(3)
AIPC 71-11-06, Fig. 1
C.
Access
(1)
Location Zone
417 and 418 Core Cowl Panel - Engine 1
427 and 428 Core Cowl Panel - Engine 2
437 and 438 Core Cowl Panel - Engine 3
447 and 448 Core Cowl Panel - Engine 4
D.
Procedure
S 044-034-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.
(1) Do this procedure: Thrust Reverser Deactivation for Ground Maintenance (AMM 78-31-00/201).
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
Equipment Installation
Figure 401 (Sheet 1)
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SEE A SEE B
1. BOOM HOIST
4. CORE COWL PANEL
(2 LOCATIONS) HOLES (REF) BOLT STORAGE 5. BOLT (2 LOCATIONS)7. BOLT 6. LIFT PAD (2 LOCATIONS) 10. BOLT HOLES (REF) BOLT STORAGE (2 LOCATIONS) 8. BOLT 9. LIFT PAD
A B
Figure 401 (Sheet 2) Equipment Installation
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
SEE A
SEE B
(4 LOCATIONS)
A
1. CORE COWL PANEL (REF)
2. WASHER
1. CORE COWL 3. NUT PANEL (REF)
HINGE FOR THE
CORE COWL PANEL
HINGE FOR THE
5. QUICK-RELEASE PINCORE COWL PANEL(REF)
4. BOLT WITH THE LOCK PIN (REF)
EXAMPLE (4 LOCATIONS) EXAMPLE (4 LOCATIONS)
B1 B
2
1 CORE COWL PANELS WITH THE HINGE BOLTS
2 CORE COWL PANELS WITH THE HINGE PINS
Core Cowl Panel Installation
Figure 402
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ALL ú ú N01 Page 404 ú Oct 10/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
S 024-041-N00
WARNING: USE CAUTION WHEN YOU REMOVE THE CORE COWL PANEL IN HIGH WINDS.
_______ IF YOU DO NOT USE CAUTION, YOU CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
WARNING: DO NOT HOLD THE CORE COWL PANEL WITH THE HOLD-OPEN RODS IF THE
_______ WIND VELOCITY IS MORE THAN 60 KNOTS. THE HOLD-OPEN ROD CAN HAVE A FAILURE IN HIGH WINDS, WHICH CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(2)
Remove the bolts (7 and 10) from the core cowl panel (4).
S 034-004-N00
(3)
Remove the bolts (5 and 8) from the bolt storage holes on the lift pads (6 and 9).
S 494-005-N00
(4)
Put the core cowl sling (3) on the core cowl panel (4).
S 494-006-N00
(5)
Install the lift pads (6 and 9) to the core cowl panel (4) with the bolts (5 and 8).
S 494-007-N00
WARNING: MAKE SURE THE BOLTS THAT ATTACH THE CORE COWL SLING TO THE CORE
_______ COWL PANEL ARE TIGHT. THE LEFT PANEL WEIGHS APPROXIMATELY 110 POUNDS (50 KGS). THE RIGHT PANEL WEIGHS APPROXIMATELY 90 POUNDS (41 KGS). IF THE CORE COWL PANEL FALLS, INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
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