AERO CHARTER AND TRANSPORT, INC.

Operated by Aero Charter and Transport (per NTSB report)

Operated by Aero Charter and Transport, Inc. (per NTSB report)

Operated by Aero Charter & Transport (per NTSB report)

OIL LINE, FROM EXHAUST BYPASS VALVE TO VARIBLE ABSOLUTE PRESSURE CONTROLLER CRACKED AT ATTACHMENT FLARE. THIS CAUSED OIL LEAK THAT GOT WORSE DURING FLIGHT. DUE TO OIL LOSS, NR 4 PISTON CONNECTING ROD FAILED FROM OIL STARVATION DURNG TAXI.

NUMBER 4 CYLINDER SEPARATED FROM ENGINE CASE.

NR 4 CYLINDER'S CONNECTING ROD END CAP SEPARATED FROM CONNECTING ROD. INSPECTION OF ENGINE REVEALED THAT 1 OF THE 2 ATTACHMENT NUTS THAT SECURES END CAP TO CONNECTING ROD CRACKED INTO 4 PIECES ALLOWING END CAP TO STOP SECURING CONNECTING ROD TO CRANKSHAFT. CONNECTING ROD WAS FOUND INTACT. END CAP WAS FOUND IN 3 SEPARATE SECTIONS WITH 2 OF THE SECTIONS RETAINING LOWER HALVES OF ATTACHMENT BOLTS.

THE NR 5 CYLINDER HEAD SEPARATED FROM CYLINDER BARREL APROX .1250" ON RIGHT ENGINE.

DURING CRUISE CLIMBOUT, AT APPROX F.L. 14,000: PILOT REPORTED LOUD BANG SOUND FROM RT ENGINE, FELT ACFT YAW AND ENGINE INSTRUMENTS INDICATED THAT ENGINE WAS LOSING POWER, PILOT FEATHERED PROP AND SHUTDOWN ENGINE. ACFT RETURNED TO DEPARTURE AND LANDED WITHOUT INCIDENT. INSP OF ENGINE REVEALED THAT THE NR 4 CYLINDER CONNECTING ROD HAD BROKE AWAY FROM CRANKSHAFT AND WAS PRETRUDING FROM LT SIDE OF CASE HALF CAUSING 2.5 " DIAMETER HOLE.

RT ENG NR 2 CYL CONNECTING ROD FAILED NEAR END CAP. (K)

RT ALTERNATOR DRIVE HUB FAILED. FAILURE CAUSED DAMAGE TO IDLER GEAR AFIXED TO CRANKSHAFT THAT DRIVES ALTERNATOR. (K)

LT MAIN LANDING COLLAPSED ON LANDING. IT APPEARS THAT BELLCRANK ASSEMBLY, PN 50410015 FAILED DURING EXTENSION CYCLE. (K)

DURING LANDING (AT DESCISION HEIGHT) LT ENGINE SHUTDOWN CAUSING AIRCRAFT TO LAND WITH A YAW TO THE LT, PUTTING EXCESSIVE LOAD ON RT LANDING GEAR. AFTER LANDING, LT ENGINE WAS RESTARTED AND AIRCRAFT CONTINUED ITS TAXI, WHEN AC TURNED OFF RUNWAY. RT LANDING GEAR TORQUE LINK ASSY CENTER SECTION FAILED AT DESIGNED CONNECTION POINT. THIS CAUSED DAMAGE TO OB LANDING GEAR DOOR AND LOWER WING SKIN WERE GEAR DOOR ATTACHED. AC WAS NOT QUITE OFF RUNWAY WHEN THIS HAPPENED. AIRCRAFT HAD DESCENDED THRU HEAVY SNOW AND RAIN JUST PRIOR TO LANDING AND SUSPECT THAT THIS PLAYED A CONSIDERABLE FACTOR IN ENGINE PERFORMANCE. (K)

WHEN LANDING SYSTEM WAS IN DOWN AND LOCKED POSITION, LANDING GEAR (TRANSIT) LIGHT REMAINED ON (BUT ONLY PARTIALLY LIT) WHILE ALL (3) GREEN DOWN AND LOCK POSITION LIGHTS WERE ALSO ON. (K)

AIRCRAFT 30 MILES OUT, IN IMC CONDITIONS. PILOT TURNED ON ALL DE-ICE EQUIPMENT. WHEN PROP DE-ICE CYCLED BOTH ALTERNATORS WENT OFF LINE. WHEN PILOT TURNED OFF DE-ICE EQUIPMENT AND RECYCLED ALTERNATORS SWITCHES, ALTERNATORS CAME BACK ON LINE. INSPECTION FOUND FAULTY PROP-DE-ICE TIMER. (K)

IT APPEARS FOR SURE THAT NUT ON CONNECTING ROD CAP, LOOSEN. BOLT HEAD SHEARED OFF. ENGINE STOPPED RUNNING SOOP AFTERWARD. (BOLT NR 629340) (K)

LT MAIN GEAR TIRE BLEW OUT ON TAKEOFF. DAMAGE TO LT WING, LT GEAR HARNESS, BRAKE LINES, AND A DENT IN THE LT LOWER ENGINE COWL.

FULE LEAK IN COCKPIT, PILOT DECLARED EMERGENCY AND RETURNED TO FARMINGTON, NM AIRPORT. RIGHT FUEL FLOW GAUGE INDICATION WENT TO ZERO. REMOVED AND REPLACED RIGHT FUEL FLOW GAUGE PRESSURE LINE P/N CM2944-2-18.