What was found
NR 2 HF INOPERATIVE, WILL NOT TRANSMIT. ACFT GROUNDED. NO SIDE TONE OR KEY INTERLOCK LED WHEN TRANSMITTING FROM NR 2 HF TRANSCEIVER. REPLACED THE NR 2 HF COUPLER. INSTALLATION TEST FOR THE COUPLER PASSED IAW AMM 23-11-61/401.
- Difficulty date
- April 3, 2017
- Submitted
- April 6, 2017
- Operation
- Air carrier
- Aircraft
- N560AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35179
- Aircraft time
- 40,677 hours, 12,249 cycles
- System (JASC)
- 2310 · HF Communications System
- Part
- Coupler
- Part number
- 8220987004
- Part serial
- 153825
- Condition
- Failed
- Location
- Hf Transceiver
- Part time
- 40,529 hours, 11,917 cycles
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.