Service difficulty report · Hf Tr Unit · Boeing 757222

Difficulty date
September 9, 1996
Submitted
March 26, 2000
Operation
Air carrier
Aircraft
N549UA
Make and model
Boeing 757222
Aircraft serial
25397
Engine
Pwa PW2037
Part
Hf Tr Unit
Condition
Damaged
Location
E/E Compt
Component
Collins · 6225272
Stage of operation
NR
Nature of condition
N
Precautionary procedure
A

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

What was found

TUNING RIGHT HIGH FREQ SYSTEM CAUSES ERRATIC AUTOPILOT AND FALSE RIGHT AFT EMERGENCY DOOR OPEN EICAS MESSAGE. REPLACED RIGHT HIGH FREQ TRANSCEIVER, OPERATION CHECKS NORMAL.