What was found
HF RADIO TRANSMISSION PROBLEM. NO TRANSMIT. REPLACED COUPLER.
- Difficulty date
- April 27, 2012
- Submitted
- May 25, 2012
- Operation
- Air carrier
- Aircraft
- N798UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26928
- Aircraft time
- 62,990 hours, 9,074 cycles
- Engine
- Pwa PW40903
- System (JASC)
- 2310 · HF Communications System
- Part
- Coupler
- Part number
- 490S1
- 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.