What was found
VHF RADIO TRANSMISSION PROBLEMS. CANNOT TRANSMIT ON LEFT BOOM MICROPHONE. HAND MICROPHONE OK. REPLACED CAPTAIN`S BOOM MICROPHONE, NO HELP. ASSOCIATED HAND MICROPHONE OPERATES NORMALLY. REPLACED CAPTAIN`S RADIO, OPS CHECKED NORMAL.
- Difficulty date
- July 15, 2013
- Submitted
- August 21, 2013
- Operation
- Air carrier
- Aircraft
- N209UA
- Make and model
- Boeing 777222
- Aircraft serial
- 30215
- Aircraft time
- 58,434 hours, 7,316 cycles
- Engine
- Pwa PW4090
- System (JASC)
- 2350 · Audio Integrating System
- Part
- Radio
- Condition
- Malfunctioned
- Location
- Cockpit
- 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.