SDR ASAA2023101745763

Service difficulty report · Oil Filter · Boeing 7379

Difficulty date: October 17, 2023
Submitted: October 23, 2023
Operation: Air carrier
Aircraft: N949AK
Make and model: Boeing 7379
Aircraft serial: 43356
Aircraft time: 4,017 hours, 1,175 cycles
System (JASC): 7920 · Engine Oil Distribution (Airframe Furnished)
Part: Oil Filter
Part number: B131605066
Condition: Faulty
Location: #1 Engine
Stage of operation: IN
How discovered: V
Nature of condition: J
Precautionary procedure: K

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

What was found

#1 ENGINE IS ALERTING FOR OIL FILTER DELTA PRESSURE INCREASE AND APPROACHING OIL FILTER BYPASS INDICATION. (#PRI1/ETOPS)CNR 20231017063DO NOT EXTEND. GROUNDED - YES. REMOVED AND REPLACED OIL FILTER IAW AMM 79-21-07.INSPECTED OLD FILTER IAW AMM 79-21-07/79-00-00, NO CONTAMINATIONS FOUND.LEAK CHECK GOOD. REPLENISHED OIL THAT WAS DRAINED IAW 12-13-11, AMM.

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