SDR ASAA2015011010194

Service difficulty report · Radio · Boeing 737890

Difficulty date: January 10, 2015
Submitted: January 12, 2015
Operation: Air carrier
Aircraft: N514AS
Make and model: Boeing 737890
Aircraft serial: 35193
Aircraft time: 24,159 hours, 7,379 cycles
System (JASC): 2310 · HF Communications System
Part: Radio
Condition: Malfunctioned
Location: Hf 1
Stage of operation: NR
How discovered: O
Nature of condition: N
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 FREQUENCY INDICATOR WILL SHOW "FAIL" SHORTLY AFTER SETTING FREQUENCY. RADIO WORKS FINE. ACFT GROUNDED. VERIFIED, CYCLED VHF 1 COMM CIRCUIT BREAKER FAULT WENT AWAY. ACCOMPLISHED HF BITE REF FIM 23-11, TASK 801, NO FAULTS, NO HISTORY PAST 30 DAYS. CONTROL INPUT FAIL PROBLEM INTERMITTEN REF FIM 23-11, TASK 802.