As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WEAK RECEIVE AND TRANSMIT. FOUND RECEIVER GOOD BUT FOUND TRANSMIT POWER AND MODULATION DROPPING OFF AND INTERMITTENT. FOUND RF CONNECTOR NOT SOLDERED PROPERLY. RESOLDERED RF CONNECTOR. MODULATION STILL DROPS OFF. SWAPPED Q109 AND Q110 TRANSISTORS. NO HELP. SENT TO GREATLAKES AVIONICS FOR INSPECTION AND REPAIR.