What was found
UNABLE TO TUNE LT HF RADIO. DISPLAY SHOWS DASHS. TESTED OK ON GROUND. TRANSCEIVER ALREADY REPLACED, SUSPECT COUPLER. NON STOCK DENVER. HF-COUPLER PLACED IN LOB. REPLACED LT COUPLER.
- Difficulty date
- June 22, 2010
- Submitted
- June 23, 2010
- Operation
- Air carrier
- Aircraft
- N799UA
- Make and model
- Boeing 777222
- Aircraft serial
- 26926
- Aircraft time
- 53,713 hours, 7,865 cycles
- Engine
- Pwa PW4090
- System (JASC)
- 2397 · Communications System Wiring
- Part
- Coupler
- Part number
- 490S1
- Part serial
- 134
- Condition
- Inoperative
- 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.