What was found
HF #1 IS DISPLAYING "FAIL" ON BOTH THE ACTIVE AND STANDBY FREQUENCY WINDOWS. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 23-11 TASK 806 HF COM SYSTEM RT TROUBLESHOOT, HF #1 OPS TEST NORMAL.
- Difficulty date
- October 21, 2019
- Submitted
- October 23, 2019
- Operation
- Air carrier
- Aircraft
- N483AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 36350
- Aircraft time
- 16,834 hours, 5,441 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Warning Message
- Condition
- False Activation
- Location
- Nr 1 Hf Comms
- 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.