What was found
UNABLE TO TRANSMIT HF 2. GROUNDED - YES. REPLACED HF COUPLER #2 REF B737-800 AMM 23-11-61 TESTED NORMAL CLEARS MEL 23-11A.
- Difficulty date
- December 22, 2018
- Submitted
- January 24, 2019
- Operation
- Air carrier
- Aircraft
- N564AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35103
- Aircraft time
- 46,472 hours, 14,024 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Coupler
- Part number
- 8220987004
- Part serial
- 166389
- Condition
- Failed
- Location
- Nr 2 Hf Comms
- Part time
- 36,318 hours, 10,809 cycles
- 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.