SDR ASAA2020052632753

Service difficulty report · Filter · Boeing 737890

Difficulty date: May 22, 2020
Submitted: May 27, 2020
Operation: Air carrier
Aircraft: N593AS
Make and model: Boeing 737890
Aircraft serial: 35107
Aircraft time: 45,949 hours, 13,783 cycles
Engine: Cfmint CFM567B262
System (JASC): 7920 · Engine Oil Distribution (Airframe Furnished)
Part: Filter
Part number: 41F9003
Condition: Contaminated
Location: Nr 2 Engine
Stage of operation: IN
How discovered: V
Nature of condition: O
Precautionary procedure: K

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

What was found

REF TSR705011, NR 2 ENG S/N 896366 SILVER METALLIC (NONMAGNETIC) HAIR LIKE MATERIAL WAS FOUND IN THE SCAVENGE FILTER ASSY, A SMALL AMOUNT WAS ALSO FOUND IN THE AFT SUMP CHIP DETECTOR. GROUNDED - YES. REPLACED THE NR 2 ENG SCAVENGE FILTER, LEAK CHECK GOOD IAW AMM 79-21-06/401.