Boeing 737 - ENGINE OIL FILTER BYPASS

737 Flight Crew Operations Manual
7.28
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D6-27370-4Q8-SJA
7.28
OIL FILTER BYPASS
1 Autothrottle (if engaged) . . . . . . . . . . .Disengage
2 Thrust lever
(affected engine) . . . Confirm . . . . . . . . . Retard
slowly until the
OIL FILTER BYPASS
light extinguishes or
the thrust lever is closed
3 Choose one:
4 Run the engine at reduced thrust to keep the light
extinguished.
PM398, PM411, PQ976 - PT832
5 Transponder mode selector . . . . . . . . . . . . . . TA
This step prevents climb commands which can
exceed reduced thrust performance capability.
▼ Continued on next page ▼
OIL FILTER
BYPASS
ENGINE OIL FILTER BYPASS
Condition:
Oil filter contamination can cause oil to
bypass the oil filter.
OIL FILTER BYPASS light extinguishes:
►►Go to step 4
OIL FILTER BYPASS light stays illuminated:
►►Go to the Engine Failure or
Shutdown checklist on page 7.14
■ ■ ■ ■
Note: Do not use FMC performance predictions.
June 15, 2020