What was found
REPORTED A VIBRATION IN CRUISE FLT. THE CREW ELECTED TO MAKE A PRECAUTIONARY LANDING AT WILLIAMSPORT DUE TO BEING OVERHEAD THE AIRPORT AT THE TIME. MAINTENANCE FOUND THE SEAL ON THE LEFT HAND SIDE OF THE VERTICAL STABILIZER TO HORIZONTAL STABILZER LOOSE. THE SEAL WAS REATTACHED AND THE AIRCRAFT RETUNED TO SERVICE. MAINTENANCE ALSO COMPLIED WITH INSPECTION OF THE ENGINE MOUNTS AND PROPELLAR ASSEMBLIES, ALL CHECKS GOOD.