Service difficulty report · Transistor

Difficulty date
September 6, 2015
Submitted
September 7, 2015
Operation
General aviation
Part
Transistor
Part number
00700381002
Condition
Burst
Location
Power Supply
Stage of operation
NR
How discovered
9
Nature of condition
B
Precautionary procedure
O

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

What was found

TRANSISTOR WHICH CATASTROPHICALLY FAILED SENDING FRAGMENTS THROUGHOUT THE KX155, AND SOMETIMES OUTSIDE THE KX155, UNLESS THE KX155 HAS BEEN EXTENSIVELY MODIFIED. MFG HAS NOT PUBLISHED ANY SB, MEMOS OR NOTICES ABOUT THE REQUIRED CHANGES; FOUND OUT ABOUT THIS AFTER I TALKED TO A RADIO TECH AT THIS MFG, ABOUT CONTINUED FAILURES OF Q402. WHEN THIS TRANSISTOR EXPLODES, THE RADIO IS DEAD.