What was found
WHILE CONDUCTING A PHASE 2 INSP, EXCESSIVE EXHAUST DUCT WAS NOTED AROUND THE NR 2 CYLINDER EXHAUST ATTACH STUDS. 2 STUDS WERE PULLED LOOSE FROM THE CYLINDER. EXHAUST GASES WERE LEAKING INTO THE UNDER COWL AREA WITH BURN MARKS ON THE CYL COOLING FINS. THE CYLINDER WAS REMOVED AND 2 NEW STUDS WERE INSTALLED. SB 10-21-01 ADDRESSES THIS ISSUE WITH A NEW STYLE OF FRESH AIR INLET INTO THE EXHAUST HEATER. THE CYL NR 2 WAS REINSTALLED AND THE KIT REFERRED TO IN THE SB HAS BEEN ORDERED.