SDR O2GA2015031744001

Service difficulty report · Coax · Lear 60LEAR

Difficulty date: March 17, 2015
Submitted: March 27, 2015
Operation: Air carrier
Aircraft: N44RM
Make and model: Lear 60LEAR
Aircraft serial: 004
Aircraft time: 8,548 hours, 6,081 cycles
System (JASC): 2310 · HF Communications System
Part: Coax
Condition: Damaged
Location: Hf System
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.

What was found

IT WAS DISCOVERED THAT BOTH HF COMMUNICATIONS WOULD NOT TRANSMIT. THE CONTROLLERS COULD BE HEARD. CREW FOLLOWED REPORTS FROM PIGGY BACK, ACFT FLIGHT 1817 UNTIL THE LAST POSITION OF THE FLIGHT, AT THAT POINT COMMUNICATION VIA SATCOM. LANDING WAS UNEVENTFUL. TROUBLESHOOTING RESULTED IN COAX CONNECTORS FOR BOTH THE HF COUPLERS WERE FOUND TO BE SWAPPED. CONNECTORS WERE PROPERLY SECURED ON BOTH THE HF COUPLERS WITH A SUCCESSFUL OPERATIONAL CHECK. ACFT WAS RETURNED TO SERVICE.