Service difficulty report · Eec · Boeing 737890

Difficulty date
January 13, 2019
Submitted
January 15, 2019
Operation
Air carrier
Aircraft
N581AS
Make and model
Boeing 737890
Aircraft serial
35188
Aircraft time
44,766 hours, 13,393 cycles
Part
Eec
Part number
1853M33P06
Part serial
LMDN7321
Condition
Failed
Location
Nr 1 Engine
Part time
11,557 hours, 3,294 cycles
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 PERFORMING BITE ON NR 1 ENG EEC FOUND FAULT CODE 73-11351. ALSO FOUND C/B AT P18-2 A-5 ENG 1 ALTN PWR CHANNEL A OUT. GROUNDED - YES. FOUND VOLTAGE AT CONNECTOR DP0101. THE RESULT REQUIRES EEC REPLACEMENT. REMOVED AND REPLACED EEC IAW AMM 73-21-60. ALL TEST GOOD. REPAIR/GROUND CONFIRMATION GOOD.