NOTE: The area upwind of the airplane is the most important area to
____
keep clean.
TASK 10-11-03-862-015
3. Prepare the Airplane to be Parked in High Winds - Incorrect Configuration
__________________________________________________________________________
A. Special Tools and Equipment
(1) Nose Gear Tether Straps - designed for 18,000 pound strap loads
B. Procedure
S 492-012
(1) If the airplane configuration (gross weight and cg) will not be within the limits shown on Figure 201 for the anticipated wind gust velocity and ramp surface conditions, do the steps that follow:
(a)
Do all of the steps under "Prepare to Park the Airplane in High Winds - Correct Configuration" above.
(b)
Install tether straps on the nose landing gear as follows (Fig. 202): 1) Put the tether straps around the nose landing gear lower
tripod brace.
CAUTION: MAKE SURE THE ROUND SLING IS BELOW THE LIGHT HOUSING
_______ CONDUIT. IF THE SLING IS NOT BELOW THE CONDUIT, DAMAGE TO THE CONDUIT CAN OCCUR.
2) Make sure the round slind is installed below the light housing conduit. 3) Make sure the straps make an angle of approximately 30-degrees to the ground.
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A
747-400
MAINTENANCE MANUAL
A
LOWER TRIPOD BRACE LOWER TRIPOD BRACE SIDE BRACE
SIDE BRACE SEE A
ROUND SLING
ROUND SLING
ANCHOR SHACKLE 30` ANCHOR SHACKLE GROUND ANCHOR PLATES GROUND ANCHOR PLATES
A (VIEW IN THE AFT DIRECTION) NOSE GEAR FWD NOSE GEAR A-A
LOWER TRIPOD BRACE CONDUIT LIGHT HOUSING THROUGH THIS SPACE OF ROUND SLING INSERT LOOPED END
LIGHT HOUSING RUNWAY TURN-OFF
FWD
A
Nose Gear Tether Installation
Figure 202
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A47665
A 747-400 MAINTENANCE MANUAL
4) Attach the straps to the ground anchors.
(2) S 862-013Close and latch all the external doors, the hatches, and the access panels.
(3) S 942-014Remove all the stands and movable objects from the area.
NOTE:____ The area upwind of the airplane is the most important area to keep clean.
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A
747-400 MAINTENANCE MANUAL
PARKING (WITH ENGINES REMOVED) - MAINTENANCE PRACTICES
______________________________________________________
1. General_______
A. This procedure has this task:
(1) Parking with Engines Removed.
TASK 10-11-04-582-001
2. Parking with Engines Removed_____________________________
A. General
(1)
To supply ballast that is necessary during the engine removal or the installation, refer to AMM 71-00-02/401.
(2)
You can remove and install the engines without ballast. But to do this the airplane must have all its equipment on it and must be parked on all the landing gear. The crew, the payload, and the fuel does not have to be on the airplane to do this.
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