What was found
HF 1 AND HF 2 INOP. GROUNDED - YES. REMOVED AND REPLACED HF COUPLER #2 AND RESEATED HF COUPLER #1 IAW B737-900 23-11-61-000-801, 23-11-61-400-801, OPS CHECKS GOOD WITH NEW YORK.
- Difficulty date
- December 6, 2021
- Submitted
- December 8, 2021
- Operation
- Air carrier
- Aircraft
- N558AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35177
- Aircraft time
- 55,723 hours, 16,283 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Coupler
- Part number
- 8220987004
- Part serial
- 160463
- Condition
- Inoperative
- Location
- Vertical Fin
- Part time
- 35,957 hours, 10,564 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.