As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
OUT OF SVMC AFTER TAKEOFF WITH LANDING GEAR LEVER IN UP POSITION AND FLAPS FROM 5 DEGREES TO 2 DEGREES THE TAKEOFF WARNING HORN STARTED TO SOUND, ACCOMPLISHED AIR GROUND SENSOR PROCEDURES AND AIRCRAFT RETURNED TO SVMC. THE LEFT GROUND AIR SENSOR WAS REPLACED PER MM 32-09-221. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (M)