What was found
HF#1 FAILED SELCAL CHECK ON 8.843 MHZ. GROUNDED - YES. PERFORMED INITIAL EVALUATION REF FIM 23-11 TASK 806. THE HF 1 COMMUNICATION SYSTEM OPERATES SATISFACTORILY, FAULT WAS INTERMITTENT. A/C OK FOR SERVICE.
- Difficulty date
- July 23, 2019
- Submitted
- July 25, 2019
- Operation
- Air carrier
- Aircraft
- N559AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35178
- Aircraft time
- 47,688 hours, 14,156 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Unknown
- Condition
- Malfunctioned
- Location
- Hf Comm
- 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.