What was found
FAIL DISPLAYED ON BOTH FREQUENCY INDICATORS FOR HF 1. GROUNDED - YES. BITE TESTED #1 AND #2 HF REF B737-900 FIM 23-11-00-810-801. TESTS OK. TESTED HF SYS REF 28-11-00-810-806. TESTS OK. FREQUENCY SELECTION NORMAL.
- Difficulty date
- September 26, 2018
- Submitted
- September 28, 2018
- Operation
- Air carrier
- Aircraft
- N468AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41735
- Aircraft time
- 16,971 hours, 5,650 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Fault Message
- Condition
- False Activation
- Location
- Nr 1 Hf
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- N
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.