Service difficulty report · Hf Comm · Boeing 767323

Difficulty date
May 28, 2021
Submitted
June 1, 2021
Operation
Air carrier
Aircraft
N321CM
Make and model
Boeing 767323
Aircraft serial
29431
Aircraft time
81,221 hours, 13,493 cycles
Part
Hf Comm
Part number
6225272001
Part serial
1729
Condition
Intermittent
Part time
609 hours, 179 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

DISCREPANCY: HF COMMUNICATION SYSTEM TRANSMISSION ON LH HF INTERMITTENT ON ALL STATIONS. CORRECTIVE ACTION: DEFERRED PER MEL 23-11-01-02. REPLACED LH HF TRANSCEIVER AND OPS CHECK GOOD PER AMM 23-11-03. ETOPS GROUND VERIFICATION CHECK OK. ETOPS SS