What was found
HF #1 RECEIVE ONLY - UNABLE TO TRANSMIT AND ONE LONG TONE WHEN TRYING INITIAL COMM CHECK W/ SAN FRAN. GROUNDED - YES. REPLACED #1 HF COUPLER REF B737-800 AMM 23-11-61. OPS CHECK GOOD ON #1 HF REF AMM 23-11-61.
- Difficulty date
- June 22, 2022
- Submitted
- June 27, 2022
- Operation
- Air carrier
- Aircraft
- N566AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35182
- Aircraft time
- 56,666 hours, 16,685 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Hf Comm
- Condition
- Fault Message
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.