S 172-066

 (2)  
Flush the plumbing for the crew oxygen system with dry nitrogen or clean air.

 S 422-067

 (3)  
Install the portable oxygen bottles and the crew oxygen bottle (with the regulator).

 S 862-068

 (4)  
Open the high pressure valves on the oxygen supply cylinders.

 S 422-069

 (5)  
Install oxygen masks for the crew.

 NOTE: You must examine crew oxygen masks that have been in storage
____ for more than three months. The rubber and plastic components must be in good condition.
 S 862-070
 (6)  
Plug the crew oxygen masks into the activated oxygen system and make sure they work correctly and supply oxygen.

 S 282-071

 (7)  
Make sure the passenger oxygen system and mask drop system operate correctly (AMM 35-22-00/501).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A
737-300/400/500MAINTENANCE MANUAL
 L. Potable Water System
 S 022-072
 (1)  
Remove the plugs from all drains.

 S 162-073

 (2)  
Disinfect the water system and install a new filter (AMM
 12-14-00/301).

 S 612-074

 (3)  
Service the water tanks (AMM 12-14-00/301).

 S 422-075

 (4)  
Install a new filter.

 M. Wing, Leading Edge, Trailing Edge, Empennage and Fuel System
 S 682-076
 (1)  
Drain all the collected water from the fuel tanks, surge tanks and boost pumps.

 S 682-077

 (2)  
Drain and aerate the fuel tanks and examine them for corrosion or deterioration if they have not been examined in the last 60 days.

 S 212-078

 (3)  
Examine the bladder cells.

 S 212-079

 (4)  
Fully examine all areas for corrosion or deterioration.

 NOTE: Make sure you examine the vertical and horizontal stabilizer
____ balance bays, access panels and all non-metallic parts (seals).
 S 212-080
 (5)  
Lower (or open) all flaps (the leading and trailing edge) and spoilers and examine them for corrosion.

 (6)  
Do a check of the structural drain holes to make sure they are open.

 (7)  
Lubricate all the flap tracks (AMM 12-22-51/301).

 S 022-083

 (8)  
Remove all cheesecloth, red flags and tape from all vent and cavity vent openings.

 (9)  
Make the tanks serviceable (AMM 28-21-00/501).

 S 212-081
 S 642-082
 S 612-084
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 442-085
 (10)
 Activate the Power Plants (AMM 71-00-03/201).

 S 442-086

 (11)
 Activate the APU (AMM 49-11-00/201).

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 HIGH WIND CONDITIONS PARKING - MAINTENANCE PRACTICES
____________________________________________________
 1.  General
_______
 A.  This procedure contains one task. It gives the instructions to make sure the airplane stays in its position while it is parked in high wind conditions. Do these instructions with the usual parking procedures.
 B.  The airplane is made to be resistant to high velocity ground winds from all angles without mooring. However, if you expect high velocity winds, do the Park the Airplane task that follows.
　
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