What was found
PERFORMED NR 1 HF CHECK AND UNABLE TO RECEIVE OR TRANSMIT. GROUNDED - YES. REMOVED AND REPLACED THE #1 HF ANTENNA COUPLER PER B737-800 AMM 23-11-61/401. OP-CHECKS GOOD PER SAME.
- Difficulty date
- November 25, 2018
- Submitted
- November 30, 2018
- Operation
- Air carrier
- Aircraft
- N559AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35178
- Aircraft time
- 45,086 hours, 13,470 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Coupler
- Part number
- 8220987004
- Part serial
- 168896
- Condition
- Malfunctioned
- Location
- Nr 1 Hf
- Part time
- 29,935 hours, 8,941 cycles
- 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.