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SDR ASAA2015062812258

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Service difficulty report · Eec · Boeing 737990ER

FAA SDR system

Difficulty date
June 28, 2015
Submitted
June 30, 2015
Operation
Air carrier
Aircraft
N440AS
Make and model
Boeing 737990ER
Aircraft serial
41705
Aircraft time
6,566 hours, 2,129 cycles
Engine
Cfmint CFM567B27E
System (JASC)
7320 · Fuel Controlling System
Part
Eec
Part number
2042M67P04
Part serial
FFFH2941
Condition
Faulted
Location
Nr 1
Part time
6,566 hours, 2,129 cycles
Stage of operation
IN
How discovered
9
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 PERFORMING TC 78273000, "INTERROGATE FMC CDU FAULTS" FOUND FAULTS ENGINE CONTROL LIGHT MSG NR: 73-20131, INTERNAL EEC FAULT. SHORT TIME MSG NR 73-20101, INTERNAL EEC FAULT, LONG TIME MSG NR 73-20131, INTERNAL EEC FAULT ON THE NR 1 ENGINE GROUNDED. REPLACED NR 1 ENGINE EEC. ALTERNATE DEACTIVATION PROCEDURES REVERSED. OPS CK GOOD. REF AMM 73-21-60/401.