What was found
NR 1 HF SEEMS TO BE MALFUNCTIONING, NR 2 HF IS CLEAR. ALL FREQUENCIES USED, TRIED ON NR 1 HF, VERY POOR QUALITY. ACFT GROUNDED. REPLACED NR 1 HF TRANSCEIVER IAW MM 23-11-21/401. OPS GOOD IAW TASK 23-11-00-710-801.
- Difficulty date
- December 3, 2014
- Submitted
- December 6, 2014
- Operation
- Air carrier
- Aircraft
- N593AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35107
- Aircraft time
- 25,759 hours, 7,966 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Transceiver
- Part number
- 8220990004
- Part serial
- 40F8PY
- Condition
- Failed
- Location
- Nr 1 Hf
- Part time
- 5,944 hours, 1,878 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.