SDR ASAA2012070792487

Service difficulty report · Eec · Boeing 737890

Difficulty date: July 7, 2012
Submitted: July 10, 2012
Operation: Air carrier
Aircraft: N535AS
Make and model: Boeing 737890
Aircraft serial: 35200
Aircraft time: 5,670 hours, 1,710 cycles
Engine: Cfmint CFM567B273
System (JASC): 7320 · Fuel Controlling System
Part: Eec
Condition: Failed
Location: Nr 1 Engine
Part time: 5,679 hours, 1,713 cycles
Stage of operation: CR
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

IN CRUISE, THE A/T LIM ADVISORY LIGHT ILLUMINATED. NO OTHER INDICATIONS. ON BITE TEST, THREE FAULTS LOGGED, MESSAGES 22-31410, 22-31512 AND 22-31411. A/C FROM BATTERY OFF WHEN GROUND POWER APPLIED ENG 1 ALTN POWER CHANNEL B CIRCUIT BREAKER TRIPPED. NR 1 EEC WAS REPLACED. ACCOMPLISHED POWER PLANT TESTS, REF 71-00-00-800-811-F00. ACCOMPLISHED AUTOTHROTTLE BITE TEST, OPS NORMAL, NO FAULTS, REF MM 22-31-00-810-801.