What was found
HF 1 FAIL. GROUNDED - YES. PER FIM 23-11 TASK 801, HF #1 BITE TEST PASSED NO FAULT NOTED. PERFORMED HF #1 COMMUNICATION TEST NORMAL REF AMM 23-11-00-730-801, GROUND VERIFICATION TEST NORMAL, UNABLE TO DUPLICATE DISCREPANCY.
- Difficulty date
- September 19, 2019
- Submitted
- September 23, 2019
- Operation
- Air carrier
- Aircraft
- N478AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 44105
- Aircraft time
- 16,679 hours, 5,449 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Warning System
- Condition
- False Activation
- Location
- Cockpit
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- N
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.