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selector in the SUPPLY position for periodic review of cabin temperature.
CD Verify TRIM AIR switch is OFF. Verify ZONE TEMP lights are
extinguished.
Note: B737-800/900 aircraft have had nuisance illuminations of one,
two or all three air conditioning system ZONE TEMP lights on the
forward overhead panel during master caution recall. Resetting
the master caution system typically extinguishes the ZONE TEMP
lights under this situation.
This problem occurs when the TRIM AIR switch is ON during any
aircraft power transfer (ground power to APU generators, APU
generators to engine generators, etc.). If the TRIM AIR switch is OFF
during power transfer, the temperature control system Built In
Test Equipment (BITE) does not test the three zone trim valves.
737 Sec. 3 Page 47
Flight Manual Continental Rev. 11/15/02 #41
This procedure will result in a slight degradation in heating
performance, especially when starting from a cold soaked aircraft
at very cold temperatures.
Place the control and passenger cabin temperature controls to AUTO.
Observe air mix valve and/or duct temperature. RAM DOOR FULL OPEN lights
should be illuminated.
Press to test the WING-BODY OVERHEAT switch. Observe both WING BODY
OVERHEAT lights, the MASTER CAUTION lights and AIR COND system
annunciator lights illuminate, and then extinguish when the test button is
released.
Note: Wing body overheat test not required on Through-Flights.
Verify that RECIRC FAN switch(es) are ON.
If air conditioning has not already been established, evaluate air
conditioning requirements. BCD The APU can supply adequate
pressure for dual pack operation. >>@ Normally operate one pack in
the AUTO or HIGH position. Two pack operation using the APU is allowed
for maximum heating only. Check the isolation valve switch in the AUTO
position, both engine bleed air switches on, APU bleed air switch ON unless
external air is in use for air conditioning or will be used for start, and
recirculating fan switch in AUTO.
The proposed cruise altitude should be set into the FLT ALT selector.
Destination field elevation should be set into the LAND ALT selector.
Two hundred feet below destination field elevation should be set into the
CABIN ALT selector (if installed).
Set the standby rate knob on the index and verify that the FLT/GRD switch is
in the GRD position (if installed).
Verify the pressurization mode selector is in the AUTO position, and the
AUTO FAIL light is extinguished.
Check that the pressurization indicators read zero differential pressure, zero
rate of climb, and field elevation.
Exterior Lights (Flow).........................................................(AS REQUIRED)
Position lights are to be ON any time there is electrical power on the
aircraft. Logo lights should be operated at night below 18,000 feet.
Sec. 3 Page 48 737
Rev. 11/15/02 #41 Continental Flight Manual
Ignition Select Switches (Flow) ..................................................... IGN L or R
The right ignitor will be selected for the first flight of the day. Alternating
the ignition select switch on subsequent starts should be accomplished.
BCD EFIS Control Panel (Flow).......................................................SET
MINS Reference Selector.......................................................AS DESIRED
Select RADIO or BARO. Adjust decision height or altitude reference, as
appropriate. BARO reference bug should be set at field elevation.
METERS Switch....................................................................AS DESIRED
BARO Reference Selector .....................................................................SET
Select IN or HPA. Set local altimeter setting.
VOR Switches........................................................................AS DESIRED
WARNING: In mountainous terrain below FL 250 at least one pilot will
monitor raw data to ensure navigational accuracy.
MODE SELECTOR...............................................................AS DESIRED
The MAP mode is recommended for departure.
CENTER Switch ....................................................................AS DESIRED
The use of CENTER MAP allows fixes behind the aircraft to be
viewed if the departure runway is not aligned with the route of flight.
RANGE Selector ....................................................................AS DESIRED
TRAFFIC Switch....................................................................AS DESIRED
MAP Switches........................................................................AS DESIRED
WXR Radar Switches.............................................................................OFF
Mode Control Panel ....................................................................................SET
　
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