N300ED
Registered owner: KV HELICOPTERS LLC, PA (owner ≠ operator)
Operators of this aircraft
Who operated this tail, and how firmly we know it.
| Operator | Role | Period | Basis |
|---|---|---|---|
| WARBELOWS AIR VENTURES INC (WVBA) | Operator | 2011-12-08 – 2011-12-08 | Operator named in NTSB report |
Accident & incident history
Maintenance disclosures
LANDING GEAR WOULD NOT EXTEND WITH GEAR HANDLE. GEAR LOWERED AND LOCKED WITH EMERGENCY PUMP HANDLE. UPON EXAMINATION FOUND LOWER FITTING ON LEFT INNER GEAR DOOR ACTUATOR CRACKED AND HOSE CHAFED TO BOTTOM FITTING. THE PROBLEM SEEMED TO COME FROM A ACTUATOR HOSE THAT WAS SLIGHTLY TO LONG AND TIRE THAT HAS A LARGER DIAMETER THAN THE TIRES NORMALLY USED. WE ARE CYCLING THE LARGER TIRES OUT OF OUR SYSTEM. AIRCRAFT REPAIRED AND RETURNED TO SERVICE.
DURING INSPECTION THIS AREA WAS LOOKED AT AFTER FINDING OTHER AIRCRAFT WITH THIS CHANNEL CRACKED THE PART WAS REMOVED AND REPLACED. IT MAY BE THAT THE CUT OUT NOT BEING. DRESSED TO BELIEVE THE STRESS CAUSED THE PART TO FAIL AS EXTRA STRESS. IS INDUCED FROM THE NOSE GEAR ACTUATOR ATTACH BRACKETS 2 REAR BOLTS COMING THROUGH THE CHANNEL. THIS ALSO SEEMS TO BE FOUND ON AIRFRAMES OVER 35,000 HOURS.
DURING PREINSPECTION RUN, IT WAS NOTED THAT THE ENGINE DRIVEN FUEL PUMP PRESSURE WAS LOW AFTER ADJUSTMENTS WERE MADE THE DESIRED PRESSURE SETTING WAS NOT OBTAINABLE. TROUBLESHOOTING, IT APPEARS THE RELIEF VALVE IS HUNG UP PUMP WAS REMOVED FROM SERVICE AND SENT OUT FOR REPAIR.
PILOT REPORTED RIGHT HYDRAULIC PUMP FAILED CHECK DURING RUN UP. PUMP WAS REMOVED AND IT WAS DISCOVERED THAT THE SHAFT HAD SHEARED. DURING REMOVAL OF THE FITTINGS IT WAS DISCOVERED THAT THE SMALL PRESSED IN NOZZLE, SPRING AND BALL HAD COME LOOSE WITH THE BALL JAMMING THE PUMP VANES AND CAUSING THE SHAFT TO SHEAR. NOTE: THIS WAS ON THE PRESSURE OUTLET SIDE. THE PUMP WAS REMOVED AND REPLACED.
PILOT REPORTED HEATER WOULD NOT FIRE OFF. IT WAS DETERMINED THAT THE IGNITION UNIT HAD NO OUTPUT. THE UNIT WAS REMOVED AND REPLACED.
DURING LANDING GEAR INSPECTION DISCOVERED THE FORWARD BRACKET FOR THE RIGHT INNER GEAR DOOR ACTUATOR WAS CRACKED THROUGH THE BOLT HOLE ON THE BEARING SIDE. NOTE: THIS BRACKET HAS A DOUBLER PIECE BEHIND THE STAMPED PIECE WHICH WAS NOT CRACKED.
DURING INSPECTION, METAL CONTAMINATION WAS DISCOVERED IN THE OIL FILTER. A CHECK OF VALVELIFT WAS DONE AND IT WAS DISCOVERED THAT NR 3 AND NR 4 INTAKE LOBES WERE EXCESSIVE. NR 3 CLYINDER WAS REMOVED AND DAMAGE OBSERVED ON THE CAM LOBES AND TAPPET FOLLOWERS. NOTE THIS IS THE 20TH ENGINE IN THREE YEARS.
DURING INSPECTION METAL CONTAMINATION WAS DISCOVERED IN OIL FILTER. A CHECK OF VALVE LIFT WAS DONE AND IT WAS DISCOVERED THAT NR5 AND NR6 INTAKE LOBES WERE EXCESSIVE. NR6 CYLINDER WAS REMOVED AND DAMAGE OBSERVED ON THE CAM LOBES AND TAPPET FOLLOWERS. NOTE: THIS IS THE 16TH ENGINE IN 3 YEARS.
PILOT REPORTED GEAR DOOR BROKEN. DISCOVERED FORWARD HINGE ON LEFT MAIN GEAR DOOR BROKEN IN HALF AND GEAR DOOR BENT FROM CONTACT WITH MAIN GEAR WHEEL. A NEW DOOR INSTALLED AND AIRCRAFT RETURNED TO SERVICE. SUBMITTER RECOMMENDED THESE HINGES BE STRIPPED OF PAINT PRIOR TO INSTALLATION TO FACILITATE PROPER INSPECTION OF THE LARGE INNER RADIUS OF THE HINGE FOR CRACKING. NOTE: BROKEN HINGE PN 47529-32 IS CORRECT. PART IAW AD 80-2605. (X)
DURING INSPECTION, METAL CONTAMINATION WAS DISCOVERED IN THE SPIN ON OIL FILTER. FURTHER INVESTIGATION FOUND NR 4 AND NR 6 CYLINDER INTAKE VALVE LIFT IN EXCESS. NR 6 CYLINDER REMOVED AND THE INTAKE LOBE OF NR 4/NR 6 CYLINDERS ON THE CAMSHAFT TO HAVE SEVERE WEAR AS WELL AS FACES OF THE TAPPETS. (X)
IN PREPARATION FOR LANDING, PILOT NOTICED LEFT ENGINE'S RPMS LAGGING THE RIGHT ENGINE. WITH ANY POWER REDUCTIONS, THE LEFT ENGINE'S RPMS LAGGED EVEN FURTHER. THERE WAS NO RESPONSE WHEN THE PROPELLER CONTROL LEVER WAS MOVED TO THE FULL FORWARD POSITION (INCREASE RPM, DECREASE PITCH). ON FINAL APPROACH WHEN THE LEFT ENGINE THROTTLE WAS MOVED TO IDLE, PROPELLER'S BLADES WENT TO THE FULL FEATHERED POSITION. SUBMITTER STATED CAUSE UNDETERMINED AT THIS TIME.
ON CLIMB-OUT FROM FAI, RIGHT ENGINE FAILED. NR 5 CYLINDER SEPARATED FROM ENGINE, NR 5 CONNECTING ROD BROKEN AT PISTON PIN. CASE RECEIVED MASSIVE DAMAGE.
DURING WORK ON REAR HEATER, HAD COVER OFF OF FUEL SHUT OFF SOLENOID. NOTICED FUEL LEAKING FROM GROMMET ON BODY OF SOLENOID. REMOVED PART FROM SERVICE AS IT PRESENTED A FIRE HAZARD.
UPON PULLING AIRCRAFT IN HANGAR FOR A SCHEDULED INSPECTION, FOUND THE ENGINE DRIVEN FUEL PUMP LEAKING FUEL FROM THE VALVE BODY PARTING FLANGES. PUMP WAS REMOVED FROM SERVICE. SUSPECT CAUSE, THE PARTING HALF FLANGE SCREWS FOR THE VALVE BODY MAY BE IMPROPERLY TORQUED. GASKET MAY BE PINCHED. THIS HAS BEEN A PROBLEM WITH OTHER PUMPS IN THE PAST.