SDR CALA2011070800473

Service difficulty report · Electronic Unit · Boeing 737724

Difficulty date: July 8, 2011
Submitted: July 20, 2011
Operation: Air carrier
Aircraft: N38727
Make and model: Boeing 737724
Aircraft serial: 28797
Aircraft time: 40,897 hours, 13,608 cycles
System (JASC): 2312 · VHF Communications System
Part: Electronic Unit
Part number: 514017
Part serial: 3064
Condition: Malfunctioned
Location: Vhf Comm
Part time: 32,359 hours, 11,445 cycles
Stage of operation: AP
How discovered: O
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

COMM NR 1, 2, 3 (HEAD) FAILED. COULD NOT TRANS/OR RECEIVE FOUND REU AT FAULT KEEPING A HOT MIC CONDITION. REMOVED AND REPLACED REU PER 23-51-01. OPS CHECK GOOD. ALL VHF'S TRANSMIT/RECEIVE ROTABLE PARTS CHANGE WAS INDICATED - TT 1433513, S/N OFF 03064 UNIT, ACCY, AUD OFF 29-2351-9-0001 3064 ON 29-2351-9-0001 2266.