What was found
DURING ANNUAL INSPECTION, FOUND FRETTING AT LEFT AND RIGHT MAIN GEAR LEGS (PN 35644-04 AND PN 35644-05) TO WING LOWER SPAR CAP ATTACH POINTS. INSPECTION REVEALED THAT LOWER ATTACH BOLTS (AN4-11A) WERE LOW ON TORQUE AND ATTACH HOLES IN GEAR LEGS AND SPAR CAPS WERE ELONGATED ALLOWING RELATIVE MOTION BETWEEN GEAR LEGS AND SPAR CAPS. CAUSE OF LOW TORQUE NOT DETERMINED. SUBMITTER RECOMMENDED CHECKING TORQUE OF BOLTS ON EACH 100 HR/ANNUAL INSPECTION.