Service difficulty report · Engine · Boeing 7379

Difficulty date
December 29, 2022
Submitted
January 3, 2023
Operation
Air carrier
Aircraft
N926AK
Make and model
Boeing 7379
Aircraft serial
43314
Aircraft time
3,552 hours, 1,051 cycles
Engine
Cfmint LEAP1B28
Engine time
3,563 hours, 1,054 cycles
Part
Engine
Condition
Making Metal
Location
Nr 2
Part time
3,563 hours, 1,054 cycles
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

#2 ENGINE OIL FILTER BYPASS CAUTION. ALL ENGINE BLOCK BLINKING CONTINUOUSLY. GROUNDED - YES. FOUND FAULT 79-42895 "OIL FILTER IMPENDING BYPASS" IN PRESENT LEG FAULTS. INTERROGATED ENG 2 EEC AND CONFIRMED #2 ENG OIL IMPENDING BYPASS MX MSG 79-42895. PERFORMED ODMS SENSOR INSPECTION, B737-9 AMM TASK G79-00-00-210-004-G000. AS PART FO THE IFIM TASK G79-32-00-810-840. FOUND PARTICLES ON #2 ODMS SENSOR GREATER THAN 0.0004 IN (0.10 MM). PARTICULATE FOUND IS OUT OF LIMITS. REF AMM 79-00-00-200-003-600. COMPLETED ODMS SENSOR INSPECTION AMM TASK 79-00-00-210-801-G00 UP TO STEP G. 1. B. 2) CHIP COUNT IS GREATER THAN 0. REMOVED #2 ENGINE ESN # 60A299 REF. ASA W/O # 1936265 ASA T/C # 71-ASA-01.

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