SDR ASAA2015091013033

Service difficulty report · Eec · Boeing 737990ER

Difficulty date: September 10, 2015
Submitted: September 15, 2015
Operation: Air carrier
Aircraft: N481AS
Make and model: Boeing 737990ER
Aircraft serial: 44106
Aircraft time: 142 hours, 46 cycles
Engine: Cfmint CFM567B27E
System (JASC): 7320 · Fuel Controlling System
Part: Eec
Condition: Out Of Tolerance
Location: Nr 2
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

T/C 78273000, NR 2 ENG SHOWS MAINTENANCE MESSAGE 73-21352, THE APC VOLTAGE INPUT TO THE ELECTRIC ENGINE CONTROL IS OUT OF RANGE, FLT LEG NR 7 SHORT TERM FAULT TO BE CORRECTED WITHIN 50 FLT HOURS. ACFT GROUNDED. ACCOMPLISHED REPAIR CONFIRMATION ELECTRONIC ENGINE CONTROL BITE SHOWS NO FAULT CODES PRESENT AND ELECTRONIC TEST PASS WITH NO ELECTRONIC ENGINE CONTROL FAULTS, REF FIM 73-22, TASK 808. THIS CLEARS THIS PLT.