What was found
HF RADIO TRANSMISSION PROBLEM. MAT FAULTS RT HF, ACCOMPLISHED FIM 23-11 TASK 809. REPLACED RT TRANSCEIVER PER MM, NO HELP. REPLACED ORIGINAL, REPLACED HF COUPLER PER MM, OPS CHECKED GOOD.
- Difficulty date
- September 20, 2011
- Submitted
- October 13, 2011
- Operation
- Air carrier
- Aircraft
- N223UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30224
- Aircraft time
- 42,724 hours, 5,230 cycles
- Engine
- Pwa PW40903
- System (JASC)
- 2310 · HF Communications System
- Part
- Coupler
- Part number
- 490S1
- Part serial
- 83
- Condition
- Faulty
- Location
- Hf Radio
- 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.