What was found
DURING ACCOMPLISHMENT OF SERVICE BULLETIN 505-55-0004 REV 01 (DATED 06/24/2020) WE NOTED THE FOLLOWING LEFT ELEVATOR ADJUSTABLE MASS BALANCE WEIGHTS BELOW TOLERANCE: PART NUMBER PE915109-L33 (4 EACH) UNDER THE WEIGHT LIMITS AS FOLLOWS (4=82 GRAMS), AS PRESCRIBED BY THE SERVICE BULLETIN (MINIMUM 84 GRAMS). ALL WEIGHTS HAS BEEN REPLACED WITH A NEW MASS WEIGHTS AND THE ELEVATOR BALANCING WAS PERFORMED WITH NO FURTHER DEFECTS NOTED. THE ELEVATOR WAS RE-IDENTIFIED TO PART NUMBER 505-11082-601, AS PER SERVICE BULLETIN INSTRUCTIONS. WE ALSO NOTED THE LEFT AILERON MASS BALANCE WEIGHT PART NUMBER PE915109-L31 WAS UNDER THE WEIGHT LIMITS (1743 GRAMS) AS PRESCRIBED BY THE SERVICE BULLETIN (MINIMUM 1787 GRAMS). THE WEIGHT HAS BEEN REPLACED WITH A NEW MASS WEIGHT AND THE AILERON BALANCING WAS PERFORMED WITH NO FURTHER DEFECTS NOTED. THE AILERON WAS RE-IDENTIFIED TO PART NUMBER 505-14735-643, AS PER SERVICE BULLETIN 505-55-0004 INSTRUCTIONS. THIS REPORT COMPLIES WITH FAA 14 CFR PART 135 OPERATOR’S GMM REQUIREMENTS.