Service difficulty report · Eec · Boeing 767332

Difficulty date
January 17, 2021
Submitted
January 19, 2021
Operation
Air carrier
Aircraft
N181DN
Make and model
Boeing 767332
Aircraft serial
25986
Aircraft time
127,523 hours, 18,711 cycles
Engine
Ge CF680C2B6F
Engine time
74,956 hours, 14,642 cycles
Part
Eec
Condition
Faulted
Location
Lt Engine
Stage of operation
CL
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

DUE TO AUTO-THROTTLE INOPERATIVE ALONG WITH VNAV DATA ISSUES AND SPEED RESTRICTED. CORRECTIVE ACTION: FOUND LEFT ENGINE EEC FAULT, REPLACED LEFT ENGINE EEC AND FMC PER B767AMM. DURING OPERATIONAL CHECK, FOUND LEFT ENGINE CHANNEL A BLANK. PIMU FAULTS CHANNEL A DATA BUS INOPERATIVE. RESEATED ALL LEFT ENGINE FIREWALL AND EEC CANNON PLUGS, OPERATIONAL CHECKS COMPLIED WITH NO FAULTS NOTED. TAT PROBE WAS REPLACED AS PRECAUTION. SYSTEM OPERATION IS NORMAL.