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Copyright . The Boeing Company. See title page for details.
SP.TOC.0.6 December 3, 2004
737 Operations Manual
General
This section contains procedures (adverse weather operation, engine crossbleed start, and so on) that are accomplished as required rather than routinely performed on each flight.
Supplementary procedures may be required because of adverse weather, unscheduled maintenance or as a result of a procedure referenced in a Non–Normal Checklist. Additionally, some may be performed if the flight crew must accomplish preflight actions normally performed by maintenance personnel.
At the discretion of the captain, procedures may be performed by recall, by reviewing the procedure prior to accomplishment, or by reference to the procedure during its accomplishment.
Supplementary procedures are provided by section. Section titles correspond to the respective chapter title for the system being addressed except for the adverse weather section.
Supplementary Procedures -Introduction 737 Operations Manual
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Copyright . The Boeing Company. See title page for details.
SP.05.2 December 1, 2000
737 Operations Manual
Interior Inspection
Emergency exit lights .................................................................... Check
Passenger signs .............................................................................. Check
Service and entry doors ................................................................. Check
Escape slides .................................................................... Check pressure
Emergency exits............................................................................. Check
Wing upper surfaces ...................................................................... Check
Lavatory fire extinguishers ............................................................ Check
Emergency equipment ................................................................... Check
Check availability and condition of emergency equipment, as
required.
Flight Deck Door Access System Test
Flight deck access system switch .................................................NORM
Flight deck door...............................................................................Open
Flight deck door lock selector........................................................AUTO
Emergency access code ...................................................................Enter
ENT key............................................................................................Push
Verify alert sounds.
Verify AUTO UNLK light illuminates.
Flight deck door lock selector....................................................... DENY
Verify AUTO UNLK light extinguishes.
Flight deck door lock selector.....................................................UNLKD
Flight deck access system switch ..................................................... OFF
Verify LOCK FAIL light illuminates.
Supplementary Procedures -Airplane General, Emer. Equip., Doors, Windows 737 Operations Manual
Flight deck access system switch ................................................. NORM Guard - Down
Verify LOCK FAIL light extinguishes.
Water System Draining
In the event the passenger water system becomes contaminated, or the airplane is to be parked in freezing temperatures for an extended period, it may be necessary to completely drain the system to prevent damage to the water lines or other equipment.
The system may be drained either by pressure or by gravity.
Pressure Draining:
APU .............................................................................................. ON
APU bleed switch ......................................................................... ON This will pressurize the water tank. If the APU is not usable, an external pneumatic cart may be used by positioning the Isolation Valve switch OPEN. The tank may also be pressurized through a valve on the external servicing panel.
Water Heaters...............................................................................OFF
CAUTION: Failure to do this could cause damage to the heaters when the water is drained.
Tank drain valve........................................................................OPEN
Shutoff/Drain valves ...............................................................DRAIN
When water stops flowing from outlets:
Tank Drain valve............................................................... CLOSE Shutoff/Drain valves ................................................................ ON Allow 2 minutes for the pressure to stabilize. To exhaust residual water, turn each shutoff/drain valve to DRAIN and then ON. Open each water faucet, galley water drain shutoff valve and coffee maker drain for 2 minutes, and then close. Depressurize the water tank by deactivating the air pressure source.
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