Service difficulty report · Warning System · Boeing 737890

Difficulty date
January 21, 2017
Submitted
January 23, 2017
Operation
Air carrier
Aircraft
N565AS
Make and model
Boeing 737890
Aircraft serial
35181
Aircraft time
38,758 hours, 11,746 cycles
Part
Warning System
Condition
False Activation
Location
Cockpit
Stage of operation
TX
How discovered
O
Nature of condition
N
Precautionary procedure
D

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

What was found

AFTER ENGINE START NR 2 ENGINE GEN OFF BUS AND SOURCE OFF LIGHTS ILLUMINATED. GEN TRIPPED OFF AFTER BEING CONNECTED TO BUS. GROUNDED - YES. ACCOMPLISHED NR 2 GENERATOR CONTROL UNIT BITE PROCEDURE. FOUND IDG FAULT LIGHT ILLUMINATED. RESET FAULT LIGHT. RE-CONNECTED NR 2 IDG. ACCOMPLISHED ENGINE RUN. NR 2 GENERATOR OPS CK GOOD. REF FIM 24-21 TASK 806. NO HISTORY PAST 30 DAYS. THIS CLEARS MEL 24-1B. AIRCRAFT CONDITION RESTORED TO NORMAL. LAMPS REINSTALLED INTO THE GENERATOR DRIVE LIGHT AND GEN OFF BUS LIGHT. RE-CONNECTED NR 2 IDG. VERIFIED VOLTS AND FREQS ON NR 2 GENERATOR. GEN DISCONNECT SWITCH GUARD RE-SAFETIED.