SDR HEEA084638

Service difficulty report · Transponder · Bell 412

Difficulty date
February 14, 2003
Submitted
February 21, 2003
Operation
Air carrier
Aircraft
N107X
Make and model
Bell 412
Aircraft serial
33113
Aircraft time
16,400 hours
Part
Transponder
Part number
066107100
Part serial
4392
Condition
Intermittent
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 OUTPUT IS INTERMITTENT. FOUND CORROSION ON Q104, Q501 AND Q502 (ALL TRANSISTORS) AND CHASSIS. CLEANED CORROSION, REPAIRED. BENCH CHECK GOOD.

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