What was found
FAIL ANNUNCIATION IS DISPLAYED ON HF #1 IN TUNING WINDOW. GROUNDED - YES. PERFORMED BITE TEST OF THE HF#1 SYSTEM. NO FAULTS. PERFORMED OPERATION TEST OF THE HF SYSTEM IAW B737-900 AMM 23-11-00. GROUND VERIFICATION TEST IS GOOD.
- Difficulty date
- December 21, 2018
- Submitted
- December 24, 2018
- Operation
- Air carrier
- Aircraft
- N468AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41735
- Aircraft time
- 17,919 hours, 5,929 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Warning Light
- Condition
- False Activation
- Location
- Nr 1 Hf Comms
- Stage of operation
- TX
- 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.