What was found
UNABLE TO MAKE VOICE CONTACT WITH HF#1. HF#1 APPEARS TO RECEIVE VOICE. GROUNDED - YES. PERFORMED HF COMM SYSTEM OPS TEST IAW B737-800 AMM TASK 23-11-00-710-801 NO DEFECTS NOTED OPS CK NORMAL.
- Difficulty date
- April 22, 2022
- Submitted
- April 25, 2022
- Operation
- Air carrier
- Aircraft
- N537AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35204
- Aircraft time
- 37,948 hours, 10,955 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Comms Unit
- Part number
- UNKNOWN
- Condition
- Failed
- Location
- Unknown
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.