What was found
WHILE COMPLYING WITH PIPER SERVICE BULLETIN NR 1161B BY THE INSTALLATION OF PIPER WING RIB MODIFICATION KITS P/N 767-397 AND P/N 767-398, IT WAS FOUND THAT THE NOSE RIBS FORWARD OF THE REPAIR WERE CRACKED. NOSE RIB P/N 62021-00 ON LEFT WING AT STATION 49.25 AND NOSE RIB P/N 62021-01 ON RIGHT WING AT STATION 49.25 HAD TWO VERTICAL CRACKS ADJACENT TO THE HOLES USED TO BOLT ON THE MAIN LANDING GEAR TRUSS BRACKET ASSEMBLY P/N 95643-06 FOR LEFT WING AND P/N 95643-07 FOR THE RIGHT WING.