What was found
(CAN) EASTERN AERO MARINE LIFE JACKET P/N P0723E105P WERE SENT FOR OVERHAUL AND RECERTIFICATION. 100 PERCENT OF THE JACKETS RETURNED WITH FAILED WATER ACTIVATED LIFE JACKET LIGHT ASSEMBLIES. THESE UNITS WERE ONLY 2 YEARS OLD, MANUFACTURED IN AUGUST/2001. THE LIFE JACKET LIGHT ASSEMBLIES WERE MANUFACTURED BY PROSAR TECHNOLOGIES INC. OF DEERFIELD BEACH, FLA. THE PART NUMBER OF THE DEFECTIVE UNIT IS WARL-8A. ALL WATER ACTIVATED LIGHT ASSEMBLIES WERE REPLACED AT OVERHAUL AND THE LIFE JACKETS WERE RE-INSTALLED BACK INTO THE AIRCRAFT. IN SPEAKING WITH THE OVERHAUL FACILITY, THEY CONFIRMED THAT IT IS VERY COMMON FOR THESE UNITS TO FAIL AT OVERHAUL INSPECTION.