SDR ASAA2018082765923

Service difficulty report · Indicator · Boeing 737890

Difficulty date: August 26, 2018
Submitted: August 27, 2018
Operation: Air carrier
Aircraft: N537AS
Make and model: Boeing 737890
Aircraft serial: 35204
Aircraft time: 26,067 hours, 7,647 cycles
System (JASC): 4990 · APU Oil System
Part: Indicator
Part number: 38810521WE
Condition: Failed
Location: Apu Oil System
Stage of operation: IN
How discovered: 9
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

WHILE PERFORMING TC N8349002, FOUND APU OIL FILTER INDICATOR RED BUTTON EXTENDED. ACFT GROUNDED. COMPLIED WITH AN APU OIL FILTER INDICATOR SERVICING IAW AMM 49-91-13. NO DEBRIS FOUND IN THE FILTER ELEMENT OR THE MAGNETIC DRAIN PLUG. UNABLE TO RESET INDICATOR ON FILTER HOUSING. INSTALLED A NEW INDICATOR ON ORIGINAL FILTER HOUSING. INSTALLED NEW FILTER IAW AMM 49-91-12. LEAK CHECKED GOOD. INDICATOR CURRENTLY NOT EXTENDED.