As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT LANDED ON ROAD 15 MINUTES AFTER TAKEOFF DUE TO ROUGH ENGINE AND NOT ABLE TO MAINTAIN ALTITUDE. AIRCRAFT HAS NOT RUN IN A LONG TIME. RAN AIRCRAFT ON GROUND 15 TO 20 MINUTES. MAGS CHECKED GOOD UP UNTIL THEN. STARTED GETTING REAL ROUGH, BOTH MAGS AND THEN WORSE. AIRCRAFT IN LICENSE - AD 94-01-03R1 NOT COMPLIED WITH ON MAG COILS AND ROTATING MAGNETS.