SDR ASAA2018010923159

Service difficulty report · Hf Comm · Boeing 737890

Difficulty date: January 9, 2018
Submitted: January 17, 2018
Operation: Air carrier
Aircraft: N586AS
Make and model: Boeing 737890
Aircraft serial: 35189
Aircraft time: 39,094 hours, 11,918 cycles
System (JASC): 2310 · HF Communications System
Part: Hf Comm
Condition: Intermittent
Location: Nr 2
Stage of operation: IN
How discovered: 9
Nature of condition: O
Precautionary procedure: K

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

What was found

WHILE PERFORMING TROUBLESHOOTING FOR THE NR 1 HF SYSTEM, FOUND THE NR 2 HF TO BE INTERMITTANT IN VOICE OPERATION. ACFT GROUNDED. INSTALLED THE CORRECT UPPER FEED LINE MOUNT HARDWARE IAW AMM DRAWING A-80023EO0009527. ACCOMPLISHED STEPS 1-4 WITH NO DISCREPANCIES NOTED. BONDING CHECKED GOOD. ALL FEED LINE ATTACH POINTS ARE SECURE IAW ASA DWG A-80023EO0009527, AMM 23-11-51.