SDR ASAA2015091613072

Service difficulty report · Transceiver · Boeing 737990ER

Difficulty date: September 16, 2015
Submitted: September 18, 2015
Operation: Air carrier
Aircraft: N469AS
Make and model: Boeing 737990ER
Aircraft serial: 41702
Aircraft time: 4,355 hours, 1,405 cycles
System (JASC): 2310 · HF Communications System
Part: Transceiver
Condition: Malfunctioned
Location: Hf 1 And 2
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

HF 1 AND HF 2 QUIT TRANSMITTING AND RECEIVING AFTER 1 + 45 FLIGHT TIME. ACFT GROUNDED. CYCLED A/C POWER, PERFORMED BITE CK OF BOTH HF TRANSCEIVERS, NO FAULTS FOUND REF AMM 23-11-00, OPS CK OF HF SYSTEM CK'S OK, GROUND VERIFICATION CK'S SUCCESSFUL, NO HISTORY PAST 30 DAYS.