A 747-400 MAINTENANCE MANUAL
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R = REVISED, A = ADDED OR D = DELETED CHAPTER 09 F = FOLDOUT PAGE EFFECTIVE PAGES E1 PAGE 1 FEB 18/02 LAST PAGE
D633U101-E1
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
CHAPTER 09 - TOWING AND TAXIING
TABLE OF CONTENTS
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Chapter Section Subject_______ Subject_______ Page
TOWING AND TAXIING 09-00-00
__________________ Description and Operation 1 TOWING 09-11-00
Maintenance Practices 201 Tow the Airplane in High Wind 249 Tow Airplane (Body Landing 230
Gear Not Centered) Nose and
Body Gear Tow Airplane (Emergency) 227 Tow Airplane (Engines Removed) 224 Tow Airplane (Maximum Weight 238
500,000 Pounds) Nose and Wing
Gear
Tow Airplane (Maximum Weight 243 500,000 Pounds) Nose and Wing Gear
Tow Airplane (Usual) 221
Tow Airplane Maximum (Weight 241 360,000 Pounds) Nose and Wing Gear
Tow Airplanes (With Flat 246 Tires) TAXIING 09-21-00 Maintenance Practices 201
Effectivity
ALLALL
ALL
9-CONTENTS
GUN Page 1 Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
TOWING AND TAXIING - DESCRIPTION AND OPERATION
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1. General_______
CAUTION: WHEN USING A TOW BAR THAT DOES NOT SEPARATE WHEN THE FUSE PIN
_______ SHEARS, UNCOORDINATED ATTEMPTS TO PANIC STOP THE TOW TUG AND/OR THE AIRPLANE FOLLOWING A FUSE PIN SHEAR CAN PRODUCE DYNAMIC LOADS THAT ARE IN EXCESS OF THE INITIAL FUSE LOAD. IN THE EVENT THAT THE TOW BAR FUSE PIN SHEARS, SMOOTHLY AND GENTLY APPLY THE BRAKES ON THE TOW TUG AND/OR AIRPLANE TO BRING THE COMBINATION TO A CONTROLLED STOP.
A. Usual towing, towing with an engine removed, emergency towing, and towing when the body landing gear is not centered, are presented in 09-11-00/201. Emergency cable towing for airplane recovery is possible if no damage has occurred to landing gear.
B. When you move the airplane on the ground, control of the airplane is similar to other tricycle-geared airplanes. Nose wheel steering and engine thrust are used as required. Always use the largest turning radius possible and never attempt to steer the nose wheel until the airplane is moving. Taxiing, airplane clearance, turning radii, engine danger areas, exhaust temperatures and exhaust velocities are presented in 09-21-00/201.
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09-00-00
ALL ú ú 01 Page 1 ú Oct 10/92
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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747-400 MAINTENANCE MANUAL
TOWING - MAINTENANCE PRACTICES
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1. General_______
A. This procedure contains these tasks:
(1)
Prepare to tow the airplane.
(2)
Usual airplane towing with the body landing gear in the center and locked.
(3)
Tow the airplane with engines removed.
(4)
Emergency towing of the airplane.
(5)
Tow the airplane with the body landing gear not in the center.
(6)
Tow the airplane supported by the nose gear and body gear (maximum weight 500,000 pounds).
(7)
Tow the airplane supported by the nose gear and wing gear (maximum weight 360,000 pounds).
(8)
Tow the airplane supported by the nose gear and wing gear (maximum weight 500,000 pounds).
(9)
Tow the airplane with a flat tire or flat tires.
(10)
Tow the airplane in high winds.
(11)
Put the airplane to its usual condition.
B. The design of the airplane will permit you to tow or push the airplane from the nose or main landing gear.
C. It is optional to tow the airplane with the entry doors, the upper and lower cargo doors, and/or the nose loading cargo door (if it is applicable) open.
NOTE: Make sure you do not tow the airplane with these doors open at
____ speeds more than 3 miles per hour. Also do not tow with the doors open in high winds or through jet engine exhaust.
CAUTION: DURING SOME WEIGHT AND CENTER OF GRAVITY (CG) CONDITIONS,
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