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movement. Operate engine normally or at reduced thrust setting
that is surge and stall free.
* * * *
ENGINES, APU
Sec. 2.7 Page 20
Rev. 11/15/02 #41
Continental
737
Flight Manual
ENGINE LOW OIL PRESSURE
Accomplish this procedure when
· >>@ the amber LOW OIL PRESSURE light is illuminated.
· BCD engine oil pressure is in the amber band with takeoff thrust
set, LOW OIL PRESSURE alert illuminated, or oil pressure is at or below the
red line.
IF Engine Oil Pressure Is In The Amber Band Or The Amber LOW OIL
PRESSURE Light Is Illuminated With Takeoff Thrust Set:
Do Not Take Off.
>>@ The amber LOW OIL PRESSURE light illuminates at a pressure
below 13 PSI.
BCD The LOW OIL PRESSURE alert blinks indicating an impending
low oil pressure, and remains steady when oil pressure is at or below red
line.
IF Engine Oil Pressure Is At Or Below The Red Line:
Accomplish the ENGINE FAILURE / FIRE / SHUTDOWN / SEVERE
DAMAGE / SEPARATION checklist.
* * * *
737
Flight Manual
Continental
ENGINES, APU
Sec. 2.7 Page 21
Rev. 11/15/02 #41
ENGINE OIL FILTER BYPASS
The OIL FILTER BYPASS light illuminated indicates an impending bypass of
the main oil filter.
Throttle (Affected Engine) ........................................................RETARD
Disconnect Autothrottle, if required.
If not in a critical phase of flight, slowly retard the throttle.
IF The OIL FILTER BYPASS Light Extinguishes:
Operate the engine at reduced thrust to keep the light extinguished.
Monitor fuel balance.
* * * *
IF The OIL FILTER BYPASS Light Remains Illuminated:
Accomplish the ENGINE FAILURE / FIRE / SHUTDOWN / SEVERE
DAMAGE / SEPARATION checklist.
* * * *
ENGINE OIL PRESSURE IN THE
YELLOW BAND
IF On The Ground At Takeoff Thrust:
Do Not Takeoff.
* * * *
IF Inflight:
Oil pressure in the yellow band is normal at low thrust settings.
* * * *
OR
OR
ENGINES, APU
Sec. 2.7 Page 22
Rev. 11/15/02 #41
Continental
737
Flight Manual
ENGINE OVERHEAT
Autothrottle .........................................................................................OFF
Throttle (Affected Engine) ............................................................CLOSE
IF The ENG OVERHEAT Light Remains Illuminated:
Accomplish the ENGINE FAILURE / FIRE / SHUTDOWN / SEVERE
DAMAGE / SEPARATION checklist.
* * * *
IF The ENG OVERHEAT Light Extinguishes:
Operate the engine at reduced thrust to keep the light extinguished due
to the possibility of a bleed air leak. Monitor fuel balance.
It is recommended to configure the aircraft for a single engine
approach and landing due to the overheat and/or fire uncertainty with
application of thrust on the affected engine.
Accomplish the ONE ENGINE INOPERATIVE APPROACH AND
LANDING checklist at the appropriate time.
* * * *
ENGINE OVER TEMPERATURE DURING
TAKEOFF OR INFLIGHT
Over temperature above the red radial should be noted in the aircraft log. Note
the maximum temperature reached and the duration of the over-temperature.
Autothrottle.................................................................................................OFF
Throttle (Affected Engine) ...............................................................RETARD
Retard the throttle until EGT is within limits.
If unable to maintain EGT within limits, accomplish ENGINE
FAILURE / FIRE / SHUTDOWN / SEVERE DAMAGE /
SEPARATION checklist at the appropriate time.
* * * *
OR
737
Flight Manual
Continental
ENGINES, APU
Sec. 2.7 Page 23
Rev. 11/15/02 #41
ENGINE START - AIR START (BOTTLE PRESSURE)
When the B737 APU is inoperative, a low pressure ground air source may be
provided as an alternate, but because of the high bypass jet engines, both
compressor-type and bottle-type ground air units must meet certain
specifications and capabilities which are in some cases greater than other
narrow-body two engine aircraft. Units meeting the criteria listed below will
normally meet the B737 starting requirement.
Compressor-Type Unit
Must be capable of producing 125 - 135 PPM (pounds-per-minute) and 30 to
40 output PSIG (pounds-per-square-inch).
Bottle Type Unit
Must be capable of 450 - 500 PSIG operating pressure. At these pressures, the
amount of air should be between 4,000 and 5,000 standard cubic feet.
* * * *
ENGINE START - CROSSBLEED START
If difficulties are experienced with an external air source with one engine
running, a crossbleed start can be made. Prior to using this procedure, notify
　
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