What was found
HF RADIOS 1 & 2 WILL NOT TRANSMIT OR RECEIVE, BUT CAN HEAR VOICE OF OTHER TRANSMISSIONS. DISPATCH CALLED ARINC, WE COULD NOT RECEIVE SELCAL CHECK. GROUNDED - YES. AIR TURNBACK. REMOVED AND REPLACED #2 HF COUPLER IAW AMM 23-11-61.
- Difficulty date
- November 20, 2022
- Submitted
- November 23, 2022
- Operation
- Air carrier
- Aircraft
- N492AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 44110
- Aircraft time
- 25,861 hours, 8,122 cycles
- System (JASC)
- 2397 · Communications System Wiring
- Part
- Coupler
- Condition
- Failed
- Location
- Hf Comms
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.