What was found
WARRANTY REPAIR/EXCHANGE : S/N 198 ; BLADE WILL NOT TRACK, CLIMBS AND DIVES FROM GROUND TO HOVER TO FLIGHT. SINCE FEBRUARY 21,200 BLADE HAS ACCUMULATED ONLY 279.8 HOURS BUT HAS BEEN REMOVED FROM SIX DIFFERENT AIRCRAFT FOR REPAIR WITH THIS BEING THE SEVENTH TIME. THIS TIME BLADE WAS INSTALLED FOR A TOTAL OF 1.8 HOURS ON N911TG/7506. LAST REPAIR 9-090000-65 S/N 2254 ; BLADE WILL NOT TRACK, CLIMBS AND DIVES FROM GROUND TO HOVER TO FLIGHT. WE RECEIVED BLADE ON EXCHANGE UNDER OUR PO 8-080107-53. BLADE WAS INSTALLED FOR A TOTAL OF 1.8 HOURS ON N911TG/7506. BLADE HAS ACCUMULATED ONLY 19.3 HOURS BUT HAS BEEN REPAIRED THREE TIMES SINCE 11/13/2001.