Service difficulty report · Eec · Boeing 737890

Difficulty date
July 27, 2018
Submitted
September 11, 2018
Operation
Air carrier
Aircraft
N533AS
Make and model
Boeing 737890
Aircraft serial
35201
Aircraft time
29,520 hours, 8,653 cycles
Engine
Cfmint CFM567B27
Part
Eec
Part number
1853M33P06
Part serial
LMDN7670
Condition
Faulty
Location
Nr 2 Engine
Part time
54,874 hours, 18,367 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 ACCOMPLISHING T/C 78273000 FOUND MAINT MESSAGE 75-20832. T3 SIGNAL OUT OF RANGE. LONG TIME FAULT. DEFERRED PER T/C 78273000. GROUNDED - YES. PERFORMED FIM 75-33 TASK 802 AND FOUND EEC REQUIRES REPLACEMENT. REMOVED AND REPLACED NR 2 ENGINE EEC REF AMM 73-21-60/401. EEC TEST AND ACTUATORS TEST PASS. PERFORMED SUCCESSFUL REPAIR CONFIRMATION OF FIM 75-33 TASK 802. ETOPS GROUND VERIFICATION SUCCESSFUL. CLEARS THE PLT.