SDR ASAA2016080917657

Service difficulty report · Radio · Boeing 737990ER

Difficulty date: August 9, 2016
Submitted: August 11, 2016
Operation: Air carrier
Aircraft: N472AS
Make and model: Boeing 737990ER
Aircraft serial: 60580
Aircraft time: 5,382 hours, 1,712 cycles
System (JASC): 2310 · HF Communications System
Part: Radio
Condition: Malfunctioned
Location: Nr 2 Hf
Stage of operation: NR
How discovered: O
Nature of condition: J
Precautionary procedure: O

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

What was found

HF RADIO NR 2 HAS FAIL IN BOTH ACTING & STANDBY WINDOWS. CIRCUIT BREAKER CHECKED IN. HF RADIO NR 1 IS GOOD. ACFT GROUNDED. ACCOMPLISHED IAW AMM TASK 23-12-40-800-802. RESET TUNING PANEL AND OPERATION NORMAL WITH NO DISCREPANCIES NOTED.