What was found
HF NR 1 DISPLAYS "FAIL FAIL". GROUNDED - YES. CYCLED NR 1 HF C/B. FAIL ALERT WENT AWAY. HF NR 1 OPS CHECKS OK. REF AMM 20-60-01.
- Difficulty date
- May 15, 2019
- Submitted
- May 16, 2019
- Operation
- Air carrier
- Aircraft
- N491AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 44109
- Aircraft time
- 14,095 hours, 4,659 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Unknown
- Condition
- Malfunctioned
- Location
- Hf Comm
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.