Avjet Corporation

THE NOSE GEAR ACTUATOR ATTACH POINT ON THE NOSE STRUT BROKE OFF DURING GEAR RETRACTION AFTER TAKEOFF. THIS WAS NOTICED BY A THUD AND THE GEAR POSITION WARNING LIGHT ILLUMINATED WHEN THE GEAR WAS RETRACTED FOLLOWING TAKEOFF. THE GEAR WAS SELECTED "DOWN" AND AN EMERGENCY WAS DECLARED TO LAND BECAUSE THE STEERING TILLER WAS NOT CENTERED. AFTER AN UNEVENTFUL LANDING AND IT WAS DISCOVERED THAT THE NOSE LANDING GEAR ACTUATOR ATTACH POINT CASTING ON THE NOSE GEAR STRUT HAD BROKEN OFF. UPON REMOVAL OF THE LANDING GEAR ACTUATOR, THE BEARING ON THE STRUT ATTACH END WAS ALSO NOTED AS BEING SEIZED.

NR 2 ENGINE STARTER/GENERATOR HAD A CATASTROPHIC BEARING FAILURE, ON THE FRONT SHAFT MOUNT OF THE STARTER/GENERATOR. THIS CAUSED A PRONOUNCED ENGINE VIBRATION ON THE NR 2 ENGINE, PROMPTING THE FLIGHT CREW TO SHUT THE ENGINE DOWN IN FLIGHT. COMPONENT WAS O/H, WO R11-03791.

ANTI-SKID CONTROL VALVE FAILED WITHOUT ANY COCKPIT INDICATION. NR 1 LEFT MAIN GEAR TIRE BLEW ON LANDING, EXCESSIVE RESULTING HEAT CAUSED NR 2 LT MLG TIRE TO BLOW ON ROLL-OUT. TROUBLESHOOTING INDICATED THE ANTI-SKID CONTROL VALVE SOLENOID WAS FUNCTIONING, HOWEVER, THE VALVE WAS NOT OPENING. (X)

DURING CLIMB-OUT, CREW NOTICED THE CABIN WAS NOT PRESSURIZING (CABIN WAS CLIMBING WITH AIRCRAFT). THE AIRCRAFT THEN RETURNED TO TAKEOFF POINT. INVESTIGATION OF THE AIRCRAFT REVEALED THE INLET COUPLING ON THE PRIMARY HAT EXCHANGER FAILED RESULTING IN NO AIR TO THE CABIN FOR PRESSURIZATION OR AIR CONDITIONING. ACTT: 8,216.5. HOURS. ACTC: 5,365.