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20120907018599I

Incident · Minor damage
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FAA incident report · Mitsubishi MU-2B-40 · Lincoln, RI · September 7, 2012

FAA Aviation Safety Information Portal

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Date
September 7, 2012 · 14:30 local
Place
Lincoln, RI
Phase of flight
Landing: Touchdown
Operating rules
General operating rules (Part 91)
Damage
Minor damage
Aircraft
N750CA
Reported as
Mitsubishi MU-2B-40
Reported engine
AiResearch TPE331 series
People aboard
2
Fatal injuries
0
Other injuries
0
Pilot’s certificates
Airline transport, flight instructor
Pilot’s flight hours
34,069 total1,442 in this make and model81 in the last 90 days
N750CARegistered now · Mitsubishi MU-2B-40S/N 407SA · Built 1979Airframe modelMitsubishi MU-2B-40Engine modelAiResearch TPE331 seriesTurbo-prop

From the FAA’s Accident/Incident Data System (AIDS), through its Aviation Safety Information Portal, as reported. The NTSB investigates accidents separately, and its record of an accident is the fuller one. The aircraft is matched to the registry by N-number and event date, checked against the reported make and model; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

What happened

The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.

This was an instructional flight, training the student in MU-2 iaw with sfar 108 from koqb to ksfz. Aircraft departed koqn runway 27 which is 3347FT long. At approximately 90 knots the aircraft made a significant lurch to the left. Instructor immediately took controls and continued the takeoff. After takeoff the landing gear appeared normal so it was retracted. The instructor assumed that the left main landing gear strut had deflated, causing the lurch to the left. Arriving at ksfz the landing gear was selected down and they did not get a normal gear down indication (no three green). The landing gear was extended using the emergency gear extension proceedures and they got a down and locked indication (three green lights). Upon touch down at ksfz the aircraft vered to the left. Skid marks from the left main landing gear were found from approximately the touchdown markings extending approximately 1500 ft to the location were the aircraft came to a stop. Skid marks from the right main gear were observed beginning approximately 700 ft from the touch down point to the point where the aircraft came to a rest. The aircrafty was located on the runway, on the left edge of the runway. The left main wheel was rotated 90 degrees from the normal direction of travel. The tire was flat and the wheel rim was ground flat approximatel inch from the edge consistent with dragging on the pavement at a 90 degree angle from normal. The left main landing gear yoke attachpoint casting for the pushrod that sets the caster of the main wheel had failed allowing the left main wheel to rotatate 90 degrees to the direction of travel. Subsequent to this investigation it was discover that the aircraft had landed short of the runway at brandywine airport, west chester, pa(oqn). As a result of the short landing the left propello suffered a prop strike and was not repaired in accordance with hartzell standard practices manual 202A and AD 95-01-02. No ferry permit could have been issued.

As the FAA filed it

THIS WAS AN INSTRUCTIONAL FLIGHT, TRAINING THE STUDENT IN MU-2 IAW WITH SFAR 108 FROM KOQB TO KSFZ. AIRCRAFT DEPARTED KOQN RUNWAY 27 WHICH IS 3347FT LONG. AT APPROXIMATELY 90 KNOTS THE AIRCRAFT MADE A SIGNIFICANT LURCH TO THE LEFT. INSTRUCTOR IMMEDIATELY TOOK CONTROLS AND CONTINUED THE TAKEOFF. AFTER TAKEOFF THE LANDING GEAR APPEARED NORMAL SO IT WAS RETRACTED. THE INSTRUCTOR ASSUMED THAT THE LEFT MAIN LANDING GEAR STRUT HAD DEFLATED, CAUSING THE LURCH TO THE LEFT.ARRIVING AT KSFZ THE LANDING GEAR WAS SELECTED DOWN AND THEY DID NOT GET A NORMAL GEAR DOWN INDICATION (NO THREE GREEN). THE LANDING GEAR WAS EXTENDED USING THE EMERGENCY GEAR EXTENSION PROCEEDURES AND THEY GOT A DOWN AND LOCKED INDICATION (THREE GREEN LIGHTS). UPON TOUCH DOWN AT KSFZ THE AIRCRAFT VERED TO THE LEFT.SKID MARKS FROM THE LEFT MAIN LANDING GEAR WERE FOUND FROM APPROXIMATELY THE TOUCHDOWN MARKINGS EXTENDING APPROXIMATELY 1500 FT TO THE LOCATION WERE THE AIRCRAFT CAME TO A STOP. SKID MARKS FROM THE RIGHT MAIN GEAR WERE OBSERVED BEGINNING APPROXIMATELY 700 FT FROM THE TOUCH DOWN POINT TO THE POINT WHERE THE AIRCRAFT CAME TO A REST. THE AIRCRAFTY WAS LOCATED ON THE RUNWAY, ON THE LEFT EDGE OF THE RUNWAY.THE LEFT MAIN WHEEL WAS ROTATED 90 DEGREES FROM THE NORMAL DIRECTION OF TRAVEL. THE TIRE WAS FLAT AND THE WHEEL RIM WAS GROUND FLAT APPROXIMATEL INCH FROM THE EDGE CONSISTENT WITH DRAGGING ON THE PAVEMENT AT A 90 DEGREE ANGLE FROM NORMAL.THE LEFT MAIN LANDING GEAR YOKE ATTACHPOINT CASTING FOR THE PUSHROD THAT SETS THE CASTER OF THE MAIN WHEEL HAD FAILED ALLOWING THE LEFT MAIN WHEEL TO ROTATATE 90 DEGREES TO THE DIRECTION OF TRAVEL.SUBSEQUENT TO THIS INVESTIGATION IT WAS DISCOVER THAT THE AIRCRAFT HAD LANDED SHORT OF THE RUNWAY AT BRANDYWINE AIRPORT, WEST CHESTER, PA(OQN). AS A RESULT OF THE SHORT LANDING THE LEFT PROPELLO SUFFERED A PROP STRIKE AND WAS NOT REPAIRED IN ACCORDANCE WITH HARTZELL STANDARD PRACTICES MANUAL 202A AND AD 95-01-02. NO FERRY PERMIT COULD HAVE BEEN ISSUED.