Service difficulty report · Eec · Boeing 737990ER

Difficulty date
September 22, 2020
Submitted
September 28, 2020
Operation
Air carrier
Aircraft
N487AS
Make and model
Boeing 737990ER
Aircraft serial
44108
Aircraft time
18,846 hours, 5,889 cycles
Engine
Cfmint CFM567B27E
Part
Eec
Part number
2042M67P02
Part serial
EFFB0679
Condition
Faulted
Location
Nr 1 Engine
Part time
40,652 hours, 13,829 cycles
Stage of operation
IN
How discovered
V
Nature of condition
J
Precautionary procedure
K

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

What was found

FOUND NR 1 ENG SHORT TIME FAULT 73-20021 INTERNAL EEC FAULT. GROUNDED-YES. VERIFIED FAULT MSG STILL PRESENT ON RECENT. REMOVED & REPLACED NR 1 ENGINE EEC, REF B737-900 AMM 73-21-60. ALL INSTALLATION TEST PASSED.