N2MF

BEECH 65-90 Fatal injury Part 91 — operator not named in the NTSB record

ATA 6340

Part: CONNECTOR — INTERMITTENT (XMSN PRESS IND)

DEPARTED HOME BASE ON AN IFR FLT. SWITCHED TO DEPARTURE FREQUENCY, TURNED ON THE INITIAL HEADING AND SAW TRANSMISSION PRESSURE GAUGE FLUCTUATING BELOW MINIMUMS. CANCELLED THE CLEARANCE WITH ATC AND RETURNED FOR A NORMAL LANDING PER THE EMERGENCY PROCEDURES. GAUGE CONTINUED TO FLUCTUATE BELOW MINIMUMS THROUGHOUT SHUTDOWN. REPLACED TRANSMISSION OIL PRESS TRANSDUCER AND CONNECTOR. ACFT GROUND RUN AND TRANSMISSION SHOWED NORMAL OPS PRESSURE.

ATA 2597

Part: LEAD — SHORTED · airframe 7,725 hrs

PRIOR TO AIRCRAFT START WHEN THE BATTERY BUSS TIE SWITCHES WERE TURNED ON, THE CREW DETECTED AN ELECTRICAL BURNING ODOR IN THE CABIN. POWER WAS SHUTOFF AND THE MECHANIC INSPECTED THE AIRCRAFT AND FOUND THE PORTABLE SUCTION PUMP POWER LEAD SHORTED OUT AND GFI PLUG HAD HEAT DAMAGE. REPLACED SUCTION PUMP POWER LEAD WITH SERVICEABLE LEAD AND THE GFI PLUG WITH A NEW GFI PLUG P/N 7599-W. OPERATIONAL CHECK OF THE SYSTEMS WERE PERFORMED AND NO DEFECTS WERE NOTED.

ATA 6210

Part: BLADE — CRACKED (MAIN ROTOR)

EXCESSIVE 1 PER REVOLUTION VIBRATION NOTICED IN MAIN ROTOR SYSTEM. THE AIRCRAFT WAS LANDED WITHOUT INCIDENT. INVESTIGATION REVEALED CORD WISE CRACKS IN UPPER AND LOWER SKINS AT STATION 1979 EXTENDING FROM THE TRAILING EDGE TO THE AFT SIDE OF THE SPAR. THE HONEYCOMB CORE OF THE BLADE IS ALSO SEPARATED AND DAYLIGHT CAN BE SEEN THROUGH CRACKS IN THE BLADE. THE CRACKS IN BOTH SKINS THEN EXTEND SPAN-WISE ALONG THE SPAR FROM STA 1925 TO STA 2075. THESE CRACKS ARE EXACTLY AS DESCRIBED IN TECH BULLETIN 109-50, PART 1 REQUIRES DAILY VISUAL INSPECTIONS OF BLADES WITH GREATER THAN 500 HOURS OF OPERATION BETWEEN STATIONS 1550 AND 3100. BT 109-50, PART II REQUIRES INSPECTION OF THIS AREA WITH A 3X MAGNIFYING GLASS EVERY 25 FLIGHT HOURS. NO DISCREPANCIES WERE NOTED DURING THESE INSPECTIONS PRIOR TO THE REPORT OF UNUSUAL VIBRATION. (K)

ATA 6210

Part: BLADES — CRACKED (MAIN ROTOR) · airframe 7,554 hrs

WHILE PERFORMING MAINTENANCE, PILOT FELT AN USUALLY HIGH VIBRATION LEVEL DURING LANDING. A POST FLIGHT INSPTION REVEALED A CORDWISE CRACKS FROM THE TRAILING EDGE TO THE AFT SIDE OF THE SPAR ON THE TOP AND BOTTOM SKINS. THE BLADE WAS REPLACED WITH P/N 109-0103-01-115 S/N P127. THE TRACK AND BALANCE AND OPERATIONAL CHECK FLIGHT WAS PERFORMED WITH NO DEFECTS NOTED.

ATA 7260

Part: GEARBOX — MAKING METAL (ENGINE)

THE ENGINE WITH SUBJECT GEARBOX STARTED MAKING METAL ON MAINTENANCE RUNS AFTER ENGINE INSTALLATION. METAL FOUND ON GEARBOX CHIP PLUG. AFTER OPENING UP GEARBOX, FOUND UNIDENTIFIED METAL RING INSIDE. NO VISIBLE SIGN OF DAMAGE TO GEAR TRAIN. RETURNED GEARBOX, FOR FURTHER EVALUATION.