SDR HEEA084646

Service difficulty report · Transponder · Bell 412

Difficulty date: February 14, 2003
Submitted: February 21, 2003
Operation: Air carrier
Aircraft: N22347
Make and model: Bell 412
Aircraft serial: 36005
Aircraft time: 12,738 hours
System (JASC): 3452 · ATC Transponder System
Part: Transponder
Part number: 071119208
Part serial: 2508
Condition: Inoperative
Location: Cockpit
Stage of operation: NR
How discovered: 9
Nature of condition: O
Precautionary procedure: O

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

What was found

TRANSPONDER INOPERATIVE. FOUND HEADER P305, TRANSISTOR Q206, DISPLAY DS103 AND PHOTOCELL V101 BAD. ALSO FOUND CARBON UNDER P305 BETWEEN PINS 12 AND 13. REPLACED HEADER, TRANSISTOR, DISPLAY AND PHOTOCELL AND REMOVED CARBON. REPAIRED. BENCH CHECK GOOD.

More about the Bell 412