12-33-02
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 WARNING: BOEING DOES NOT RECOMMEND TOWING THE AIRPLANE WHEN
_______ ELECTRICAL POWER IS NOT AVAILABLE TO OPERATE THE BRAKE HYDRAULIC SYSTEM. IF TOWING WITHOUT POWER IS REQUIRED, TELL THE TOW VEHICLE DRIVER. TOW SPEEDS MUST BE DECREASED TO WALKING SPEED (OR A SPEED WHICH WILL ALLOW THE TOW VEHICLE TO STOP THE AIRPLANE IN A SHORT DISTANCE) OR YOU MUST NOT TOW THE AIRPLANE. WITHOUT ELECTRICAL POWER, THERE IS ONLY ACCUMULATOR PRESSURE AVAILABLE TO OPERATE THE BRAKES THREE (3) TIMES. IF YOU DO NOT OBEY THIS WARNING, IT CAN CAUSE INJURY TO PERSONS OR DAMAGE TO THE AIRPLANE.
 (c)  
Tow the airplane (AMM 09-10-00/201).

 (d)  
Remove the main battery (AMM 24-31-11/201).

 S 553-038
 (13) Prepare the airplane for storage:
 (a)  AIRPLANES WITH FORWARD AIRSTAIR; Do these steps when the airstair is put in the stowed position:
 CAUTION: REMOVE ALL ICE AND SNOW FROM THE AIRSTAIRS BEFORE YOU STOW
_______ THE AIRSTAIR IN THE FUSELAGE. ICE AND SHOW WILL MELT INSIDE THE FUSELAGE AND CAN DRAIN ONTO THE ELECTRONIC EQUIPMENT.
 1)  Remove all ice and snow from the airstair before it is moved to the stowed position.
 2)  After the airstair is in the stowed postion, do these steps: a) Get access to the airstair through the Electronic
 Equipment Access Door, 1201L. b) Check for water on the drip shields and around the electronic equipment. c) Remove all water on the drip shields and around electronic equipment. d) Go out of the Electronic Equipment Bay and close the Electronic Equipment Access Door, 1201L.
 (b)  
Close the outflow valve.

 (c)  
Open the battery bus circuit breaker.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 12-33-02
 ALL  ú ú 01 Page 316 ú Mar 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 (d)  Close all the main cabin doors, galley service doors, cargo compartment doors, access doors, and flight compartment windows.
 NOTE: This will prevent snow from getting into the airplane
____
 interior.

 TASK 12-33-02-603-039
 4. Return the Airplane to Service After overnight or Extended Parking at
_____________________________________________________________________ Temperatures Below 5°F (-15°C)
______________________________
 A. General
 (1)  
If the temperature has remained above -40°F (-40°C), passenger cabin warming is not necessary.

 (a)  For temperatures below -4°F (-20°C), make sure the flight deck is warmed and maintained at -4°F (-20°C) for 30 minutes.

 (2)  
If the temperature has been below -40°F (-40°C) within the last 12 hours, then you must warm the airplane.

 B. References
 (1)  
AMM 10-11-00/201, Normal Parking

 (2)  
AMM 10-12-00/201, Prolonged Parking

 (3)  
AMM 12-13-21/301, CSD or VSCF Generator/Converter Oil Fill

 (4)  
AMM 12-15-31/301, Main Gear Shock Strut

 (5)  
AMM 12-15-41/301, Nose Gear Shock Strut

 (6)  
AMM 12-15-51/301, Landing Gear Tire Servicing

 (7)  
AMM 12-15-21/301, Oxygen

 (8)  
AMM 12-33-01/301, Cold Weather Maintenance

 (9)  
AMM 20-40-11/201, Static Grounding

 (10)
 AMM 22-10-00/501, Autopilot (Flight Controls)

 (11)
 AMM 24-22-00/201, Supply Electrical Power

 (12)
 AMM 24-31-11/201, Main Battery

 (13)
 AMM 29-15-00/201, Main Hydraulic Systems

 (14)
 AMM 32-41-41/401, Main Landing Gear Brake Removal/Installation

 (15)
 AMM 33-51-02/501, Emergency Lights - Operational Test

 (16)
 AMM 33-51-51/201, Power Supply - Battery Pack

 (17)
 AMM 71-00-00/201, Power Plant

 C. Equipment
 (1)  
Heater - Blower, Explosion Proof, Electric
 (Commercially available)

 (2)  
MARK I COLDBUSTER Heater - External Cabin, Trailer Mounted, Diesel Powered, Spencer Industries, Inc. (Vendor Code 12008) 8410 Dallas Ave. S., Seattle WA 98108-4423
　
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