What was found
MAIN CABIN DOOR COUNTER BALANCER REQUIRES ADJUSTMENT. DOOR SLAMS CLOSED WITH SUCH EXCESSIVE FORCE THAT THERE IS A ROW OF RIVETS ON EXTERIOR PANEL OF THE DOOR THAT ARE STARTING TO POP. REMOVED STEP AND VISUALLY INSPECTED INSIDE STRUCTURE OF DOOR AND EXTERIOR OF DOOR IN VICINITY OF RIVET ROW; RIVETS NOT POPPED AND REMAIN SECURE. TOUCHED UP EXPOSED AREA ON EXTERIOR DOOR AS REQUIRED, REFERENCE STANDARD PRACTICES MANUAL CH 20-50-00. RESECURRED STEP IAW AMM CH 52-10-02. CHECKED TENSION ON COUNTERBALANCE CABLE, FOUND TO BE WITHIN LIMITS. COUNTERBALANCE OPS CHECKS GOOD,