SDR ASAA2012103093214

Service difficulty report · Unknown · Boeing 737890

Difficulty date: October 30, 2012
Submitted: November 1, 2012
Operation: Air carrier
Aircraft: N588AS
Make and model: Boeing 737890
Aircraft serial: 35685
Aircraft time: 18,875 hours, 5,960 cycles
System (JASC): 2310 · HF Communications System
Part: Unknown
Condition: Unknown
Location: Hf Radio
Stage of operation: NR
How discovered: 9
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

NR 1 HF RADIO DISPLAYS SHOW FAIL. CAN SET NEW FREQENCIES WHEN TURNING KNOBS (REVERTS TO NORMAL DISPLAY FOR SEVERAL SECOND THEN FAIL LTS RETURN) WORKS OK EVEN WITH FAIL LTS NR 2 HF WORKS NORMAL. ACCOMPLISHED HF COMM SYS BITE TEST IAW FIM TASK 23-11-801. NO FAULTS FOUND. R & R HF TRANSCEIVER PRECAUTIONARY REF AMM 23-11-21. ACCOMPLISHED HF COM OPS TEST IAW AMM 23-11-00-710-801. OPS CHECKED GOOD.