What was found
DURING PREFLIGHT, HF 1 SHOWS FAIL IN BOTH WINDOWS. GROUNDED - YES. ACCOMPLISHED B737-800 FIM 23-11 TASK 806. NO PREVIOUS HISTORY. GROUND VERIFICATION TEST NORMAL.
- Difficulty date
- December 3, 2019
- Submitted
- December 5, 2019
- Operation
- Air carrier
- Aircraft
- N581AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35188
- Aircraft time
- 47,648 hours, 14,275 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Warning Message
- Condition
- False Activation
- Location
- Hf 1
- Stage of operation
- TX
- How discovered
- V
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.