8.4
8.4
Condition: Electrical smoke/fumes/fire is identified.
OXYGEN MASKS AND SMOKE GOGGLES
(if required) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ON
CREW COMMUNICATIONS
(if required) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ESTABLISH
RECIRCULATION FAN SWITCH . . . . . . . . . . . . . . . . . . . . .OFF
[Removes fan as a possible source of smoke/fumes. Stops recirculation of
smoke/fumes and increases fresh air flow.]
If smoke/fumes/fire source is known:
ELECTRICAL POWER
(affected equipment) . . . . . . . . . . . . . . . . . . . . . . . .REMOVE
If practical, remove power from affected equipment by
switch or circuit breaker in flight deck or cabin.
Continued on next page
ELECTRICAL SMOKE/FUMES OR FIRE
June 3, 2005
737 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
8.5
8.5
Continued from previous page
If smoke/fumes/fire persists or source is unknown:
BUS TRANSFER SWITCH . . . . . . . . . . . . . . . . . . . . . . . .OFF
[Prevents unwanted transfer of power.]
GALLEY POWER SWITCH . . . . . . . . . . . . . . . . . . . . . . .OFF
EQUIPMENT COOLING SUPPLY/EXHAUST
SWITCHES . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ALTERNATE
[Removes normal fans as a possible source of smoke/fumes.]
CABIN READING & GALLEY
ATTENDANT WORK LIGHTS . . . . . . . . . . . . . . . . . . . . . .ON
Instruct flight attendants to:
• turn on cabin reading lights
• turn on galley attendants work lights.
[Prepares cabin lighting prior to depowering cabin fluorescent lights.]
CABIN EQUIPMENT. . . . . . . . . . . . . . . . . . . . . . . . . . . . .OFF
Instruct flight attendants to:
• turn off galley power switches
• turn off cabin fluorescent light switches.
Plan to land at the nearest suitable airport.
Accomplish the SMOKE/FUMES REMOVAL checklist, if
required.
Condition: The FAULT light illuminated indicates both loops on
an engine have failed.
The fire detection system in one or both engines is
inoperative.
ENGINE FIRE/OVERHEAT
DETECTOR FAULT
June 3, 2005
737 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
8.6
8.6
Condition: Fire is detected in the associated engine; severe
damage which may be associated with airframe
vibration and/or abnormal engine indications has
occurred; or the engine has separated.
Continued on next page
ENGINE FIRE, SEVERE DAMAGE
OR SEPARATION
AUTOTHROTTLE (if engaged) . . . . . . . . . . . . . . .DISENGAGE
[Allows thrust lever to remain where manually positioned.]
THRUST LEVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CLOSE
[Assists in recognition of the affected engine.]
ENGINE START LEVER . . . . . . . . . . . . . . . . . . . . . . . . CUTOFF
ENGINE FIRE WARNING SWITCH. . . . . . . . . . . . . . . . . . .PULL
To manually unlock the engine fire warning switch, press
the override and pull.
If the engine fire warning switch or ENG OVERHEAT light
remains illuminated:
ENGINE FIRE WARNING SWITCH . . . . . . . ROTATE L or R
Rotate to the stop and hold for one second.
If after 30 seconds the engine fire warning switch or ENG
OVERHEAT light remains illuminated:
ENGINE FIRE
WARNING SWITCH . . . . . . . . . . . . . . . . . . . . ROTATE TO
REMAINING BOTTLE
Rotate to the opposite stop and hold for one
second.
June 3, 2005
737 Flight Crew Operations Manual
Copyright © The Boeing Company. See title page for details.
8.7
8.7
Continued from previous page
If high airframe vibration occurs and continues after engine
is shut down:
Without delay, reduce airspeed and descend to a safe
altitude which results in an acceptable vibration level. If
high vibration returns and further airspeed reduction and
descent are not practicable, increasing airspeed may
reduce vibration.
ISOLATION VALVE SWITCH . . . . . . . . . . . . . . . . . . . . . CLOSE
PACK SWITCH (affected side). . . . . . . . . . . . . . . . . . . . . . .OFF
[Causes operating pack to regulate to high flow in flight with flaps up.]
APU BLEED AIR SWITCH . . . . . . . . . . . . . . . . . . . . . . . . . .OFF
APU (if available) . . . . . . . . . . . . . . . . . . . . . START & ON BUS
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