SDR ASAA2014082708975

Service difficulty report · Oil System · Boeing 737890

Difficulty date: August 27, 2014
Submitted: August 29, 2014
Operation: Air carrier
Aircraft: N558AS
Make and model: Boeing 737890
Aircraft serial: 35177
Aircraft time: 31,275 hours, 9,217 cycles
System (JASC): 2421 · AC Generator-Alternator
Part: Oil System
Condition: Low
Location: Idg
Stage of operation: DE
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

DURING DESCENT, NR 1 GENERATOR DRIVE LIGHT CAME ON AND WENT OUT THREE TIMES. NR 1 GENERATOR VOLTS, FREQUENCIES, AND CYCLES WERE NORMAL. ACFT GROUNDED. INSPECTED AND FOUND NR 1 IDG OIL LEVEL LOW, SERVICED IDG TO FULL IAW AMM 12-13-21. PERFORMED ENGINE RUN AND OPS TEST OF THE NR 1 IDG REF AMM 24-11-00, OPS CHECK GOOD. PERFORMED IDG STATIC LEAK CHECK REF AMM 24-11-00. NO FAULTS FOUND.