What was found
HF1 RECEIVES VERY GARBLED BUT SEEMS TO TRANSMIT OK. HF2 OPERATES NORMALLY. ACFT GROUNDED. CONFIRMED DISCREPANCY. REPLACED NR 1 HF TRANSCEIVER IAW AMM 23-11-21. NR 1 HG GROUND FUNCTIONAL CHECK SUCCESSFUL. ACFT OK FOR SERVICE.
- Difficulty date
- August 23, 2015
- Submitted
- August 25, 2015
- Operation
- Air carrier
- Aircraft
- N577AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35186
- Aircraft time
- 32,340 hours, 9,681 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Transceiver
- Part number
- 8220990004
- Part serial
- 17TCFL
- Condition
- Failed
- Location
- Hf Comms
- Part time
- 20,905 hours, 6,316 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.