Service difficulty report · Filter · Boeing 737924ER

Difficulty date
September 18, 2023
Submitted
September 21, 2023
Operation
Air carrier
Aircraft
N68801
Make and model
Boeing 737924ER
Aircraft serial
42740
Aircraft time
31,277 hours, 11,338 cycles
Part
Filter
Part number
QA06422
Condition
Clogged
Location
Nr 2 Eng Oil
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
E, A

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

What was found

THE OIL FILTER BYPASS LIGHT STARTED BLINKING FOR APPROX 10 SEC F OLLOW ED BY STEADY BYPASS LGHT ACP IDT FOR CHIP DETECTORS AFTER DEBRIEFING CREW, IT WAS NOTED THAT ALL ENGINE PARAMETERS WERE NORMAL AND CREW MANUALLY SHUT ENGINE DOWN. CHIP DETECTORS REMOVED IN REFERENCE WITH BOEING AMM 79-21-05. CHIP DETECTORS INSPECTED IN REFERENCE WITH BOEING AMM 79-00-00-200-804-F00. CHIP DETECTORS FOUND CLEAN, O-RING REPLACED AND CHIP DETECTORS INSTALLED IN REFERENCE WITH BOEING AMM 79-21-05 PARTS USED: 29-7921-3-0034,QTY :1 SYSTEM TROUBLE SHOT USING BOEING AMM 79-05 TASK 817. CHECKED CHIP DETECTORS FOR CONTAINATION NO CONTAMINATION FOUND. REPLACED SCAVENGE OIL FILTER CLOGGING TRANSMITTER IN REFERENCE WITH BOEING AMM 79-21-07. REPLACED SCAVENGE OIL FILTER IN REFERENCE WITH BOEING AMM 79-21-04. REPLACED SUPPLY FILTER IN REFERENCE WITH BOEING AMM 79-21-03. ENGINE RAN IN REFERENCE WITH BOEING AMM 71-0-00. NO LEAKS EVIDENT, NO FAULTS STORED ON MCDU. PARTS USED: 29-7921-3-0039,QTY :1 29-7921-3-0021,QTY :1 29-7921-3-0037,QTY :1 29-7900-3-0036,QTY :1 00-0594-3-7114,QTY :1 31-3800-3-0003,QTY :1 40-0596-3-8363,QTY :1 99-7921-3-0008,QTY :1