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 in a closed area.
 (f)  If the humidity is less than 40 percent, no other steps are
 necessary.
 NOTE:____ The humidity is less then 40 percent when the
 humidity indicator has a blue color.
 (g)  If the humidity is more than 40 percent, replace the dessicant
 bags.
 NOTE:____ The humidity is more than 40 percent when the
 humidity indicator has a pink color.

 S 412-385
 (19)
 Close the left APU access door, 317AL, and right APU access door, 318AR:

 (a)  
Remove the two quick-release pins, disconnect the two hold-open rods and put the two hold-open rods in the two clips on the right access door.

 (b)  
Install the two quick-release pins in the two brackets on the right APU compartment bulkhead.

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747-400 MAINTENANCE MANUAL
 (c)  Lift the right access door until you can install the lanyard on
 the pin at the aft APU compartment bulkhead.
 NOTE:____ The lanyard will hold the right access door on the APU
 compartment bulkhead.
 (d)  Remove the two quick-release pins, disconnect the two hold-open
 rods and put the two hold-open rods in the two clips on the
 left access door.
 (e)  Install the two quick-release pins in the two brackets on the
 left APU compartment bulkhead.
 (f)  Make sure the insulation covers are correctly attach to the APU
 compartment firewall.
 (g)  Lift the left access door until the two APU access doors are
 approximately aligned.
 (h)  Close the two APU access doors.
 (i)  Close the six latches on the right access door.

 S 622-142
 (20) If the APU is removed, put it where there is protection from damage and the weather.
 TASK 49-11-00-632-118
 16. APU Depreservation (Less Than 7 Days)
_____________________________________
 A. General
 (1)  
This task gives the instructions for the depreservation of the APU. To do a depreservation of the APU is to put the APU back to a serviceable condition.

 (2)  
The depreservation of an APU unserviceable 0 to 7 days is not necessary.

 TASK 49-11-00-632-119
 17. APU Depreservation (8 Days to 28 Days)
______________________________________
 A. General
 (1)  This task gives the instructions for the depreservation of the APU. To do a depreservation of the APU is to put the APU back to a serviceable condition.
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MAINTENANCE MANUAL

 B. Access
 (1)  
Location Zones
 310 Fuselage - Station 2360 to Station 2792

 (2)  
Access Panels
 317AL APU Access Door - Left
 318AR APU Access Door - Right

 C.
Procedure

 S 012-389
 (1)  
Open the left APU access door, 317AL, and right APU access door, 318AR:

 (a)  
While you hold the two APU access doors in the closed position, open the six latches on the right access door.

 NOTE: The left access door will open fully and the right
____ access door will drop approximately one inch (2.5 cm) from the fuselage frame when the last latch is opened.
 NOTE: A lanyard is attached to the aft end of the right access
____ door to hold the access door to the APU compartment bulkhead.
 CAUTION: BE CAREFUL NOT TO MOVE THE TWO APU ACCESS DOORS TO THE
_______ OUTBOARD SIDE FROM THE FULL OPEN POSITION. THE FULL OPEN POSITION IS WHERE THE APU ACCESS DOOR IS DOWN AND THE TWO HOLD-OPEN RODS ARE CONNECTED TO THE TWO BRACKETS ON THE APU COMPARTMENT BULKHEAD. DAMAGE TO THE ELEVATOR CONTROL SURFACES CAN OCCUR.
 (b)  
　
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