Service difficulty report · Controller · Boeing 767323

Difficulty date
April 25, 2022
Submitted
April 30, 2022
Operation
Air carrier
Aircraft
N399CM
Make and model
Boeing 767323
Aircraft serial
25451
Aircraft time
106,130 hours, 17,779 cycles
Part
Controller
Part number
77328915
Part serial
901190
Condition
Failed
Stage of operation
CR
How discovered
V
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

AT CRUISE LEFT ENGINE HPSOV EICAS ILLUMINATED, PERFORMED QRH. PER FIM 36-10 FAULT TREE 853 WAS REPLACED LEFT ENGINE HPC IAW AMM 36-11-08/401, INSTALLATION TEST NORMAL. NO TRAX INFO FOR UNIT.