As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT SQUAWK: IGNITION KEY STICKS IN OFF POSITION. MAINTENANCE REMOVED IGNITION SWITCH AND FOUND BURNED CONTACTS. THIS IS THE SAME SWITCH COVERED BY AD 83-05-06. HOWEVER, THE 172S MODEL IS NOT INCLUDED IN THE AD LIST. SUBMITTER STATED THE 172R''''S MODEL AIRCRAFT SHOULD BE INCLUDED IN AD. ACS KIT NR A3600 INSTALLED. OPERATIONAL CHECK GOOD. AIRCRAFT RELEASED. (X)