Service difficulty report · Transceiver · Boeing 777222

Difficulty date
August 1, 2010
Submitted
August 4, 2010
Operation
Air carrier
Aircraft
N227UA
Make and model
Boeing 777222
Aircraft serial
30555
Aircraft time
34,789 hours, 4,244 cycles
Engine
Pwa PW40903
Part
Transceiver
Part number
8220330001
Part serial
35
Condition
Faulted
Location
Hf System
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

LEFT HF RADIO FAILURE. ALL DASHES IN FREQUENCY WINDOWS. CYCLED L-HF CB, GND TEST PASSED. BUT THE DASHES APPEARED AGAIN DURING TUNING. NO HF TRANSCEIVER AVAILABLE. REPLACED LEFT HF COMM TRANSCEIVER PER MM.