12-33-01
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
EXTREME COLD WEATHER MAINTENANCE - SERVICING
____________________________________________
1. General
_______
A. This procedure has these tasks:
(1)
Short term parking at temperatures below -22°F (-30°C).
(2)
Overnight or extended parking (airplane unattended) at temperatures below 5°F (-15°C).
(3)
Return the airplane to service after overnight or extended parking at temperatures below 5°F (-15°C).
(4)
Interior ice removal.
B. After every 50 flight hours when you operate continuously in cold weather, you must remove all interior ice.
TASK 12-33-02-603-067
2. Short Term Parking at Temperatures Below -22°F (-30°C)
______________________________________________________
A. General
(1)
Use this procedure when the cabin and flight deck temperature is kept above 32°F (0°C) and the engine oil temperature is kept above -40°F (-40°C) while the airplane is on the ground.
(2)
After every 50 flight hours when you operate continuously in cold weather, do the Interior Ice Removal procedure.
NOTE: Removal of the ice buildup will not impact the airplane's
____
center of gravity.
(3) Use the special requirements in this procedure to refuel the airplane in cold weather.
B. References
(1)
AMM 10-11-01/201, Park the Airplane (Normal Parking)
(2)
AMM 12-13-03/301, IDG Servicing
(3)
AMM 12-15-01/301, Main Landing Gear Shock Strut Servicing
(4)
AMM 12-15-02/301, Nose Landing Gear Shock Strut Servicing
(5)
AMM 12-15-03/301, Landing Gear Tires
(6)
AMM 12-33-01/301, Cold Weather Maintenance Procedure
(7)
AMM 12-33-02/301, Interior Ice Removal
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12-33-02
ALL ú ú 01 Page 301 ú May 28/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
C.
D.
E.
F.
A
757
MAINTENANCE MANUAL
(8)
AMM 21-00-00/201, Supply Conditioned Air to the Airplane
(9)
AMM 24-22-00/201, Supply Electrical Power
(10)
AMM 29-11-00/201, Main (Left, Right, and Center) Hydraulic Systems
(11)
AMM 32-41-08/401, Brake Hydraulic Diconnect Removal/Installation
(12)
AMM 32-42-00/501, Antiskid/Autobrake System Adjustment/Test
(13)
AMM 32-41-10/401, Main Gear Wheel Brake Removal/Installation
(14)
AMM 71-00-00/201, Power PlantEquipment
(1)
MARK I COLDBUSTER Heater - External Cabin, Trailer Mounted, Diesel Powered, Spencer Industries, Inc. (Vendor Code 12008) 8410 Dallas Ave. S , Seattle, WA 98108-4423
Consumable Materials
(1)
D00109 Oil - Aircraft turbine engine, synthetic baseAccess
(1)
Location Zones 100 Lower Half of Fuselage 200 Upper Half of Fuselage 300 Empennage 400 Powerplant and Nacelle Struts 500 Left Wing 600 Right Wing 700 Landing Gear and Landing Gear Doors 800 Doors
(2)
Access Panel
193DL Ground Air Service ConnectionProcedure
S 553-068
(1) Do the Cold Weather Maintenance procedure (AMM 12-33-01/301).
S 653-154
CAUTION: IF YOU CAN DRAIN THE FUEL FROM THE DRAIN VALVE AFTER YOU
_______ APPLIED HOT AIR TO THE EXTERIOR FOR 3 TO 5 MINUTES, DO NOT THINK THAT ALL THE ICE IS MELTED. THE ICE ADJACENT TO THE DRAIN VALVE UNIT CAN MELT AND LET SOME WATER AND FUEL FLOW FROM THE DRAIN. BUT, A PIECE OF ICE CAN STAY BEHIND. IF THE FUEL DOES NOT FLOW FROM THE DRAIN, CONTINUE TO APPLY HOT AIR FOR A SHORT TIME, AND FREQUENTLY DO A CHECK OF THE FLOW FROM THE DRAIN. CATCH THE FUEL IN A CONTAINER AND MAKE SURE ALL OF THE WATER IS REMOVED.
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