Service difficulty report · Controller · Boeing 757222

Difficulty date
April 1, 2013
Submitted
May 9, 2013
Operation
Air carrier
Aircraft
N598UA
Make and model
Boeing 757222
Aircraft serial
28751
Aircraft time
55,546 hours, 15,561 cycles
Engine
Pwa PW2037
Part
Controller
Part number
520854
Part serial
15
Condition
Failed
Location
Cockpit
Stage of operation
IN
How discovered
C
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

HMG FAILED ACK OPS CK. REPLACED HMG CONTROLLER.