Service difficulty report · Transceiver · Boeing 737990ER

Difficulty date
March 11, 2018
Submitted
March 12, 2018
Operation
Air carrier
Aircraft
N467AS
Make and model
Boeing 737990ER
Aircraft serial
36362
Aircraft time
14,823 hours, 4,974 cycles
Part
Transceiver
Part number
8220990004
Part serial
478LNG
Condition
Failed
Location
Nr 2 Hf System
Part time
8,156 hours, 2,753 cycles
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

NR 2 HF TRANSMITTER INOPERATIVE. CAN HEAR SIDE TONE & VOICES, BUT CANNOT BE HEARD. ACFT GROUNDED. CONFIRMED DEFECT, NR 2 HF WILL TUNE WHEN KEYING MIC, BUT NO VOICE COMM POSSIBLE. REMOVED AND REPLACED THE NR 2 HF TRANSCEIVER IAW AMM 23-11-21-000-801, AND 23-11-21-400-801. OPS CHECKED GOOD.