SDR ASAA2015042411498

Service difficulty report · Eec · Boeing 737890

Difficulty date: April 24, 2015
Submitted: April 28, 2015
Operation: Air carrier
Aircraft: N568AS
Make and model: Boeing 737890
Aircraft serial: 35183
Aircraft time: 31,213 hours, 9,673 cycles
Engine: Cfmint CFM567B27
System (JASC): 7320 · Fuel Controlling System
Part: Eec
Condition: Out Of Tolerance
Location: Nr 1 Engine
Stage of operation: IN
How discovered: O
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 ACCOMP T/C 78273000, FOUND #1 ENG W/ SHORT TIME FAULT 73-31351, APL VOLTAGE INPUT TO EEC IS OUT-OF-RANGE AND LONG TIME FAULT 74-30971, APL INPUT VOLTAGE FOR L EXCITER (IGN 1) IS OUT-OF-RANGE. GROUNDED - YES. ACCOMPLISHED TS PER FIM 73-22 TASK 808. PERFORMED BITE OF #1 ENGINE IAW FIM 73-00 TASK 801. NO FAULTS DETECTED. HISTORY ON MCDU SHOWS ONLY ONE OCCURRENCE ON FLIGHT LEG 10. NO PREVIOUS HISTORY IN LAST 60 DAYS.