14 Apr 2013: Needham Stoddard-Hamilton TD — Pilot

14 Apr 2013: Needham Stoddard-Hamilton TD (N95RL) — Pilot

No fatalities • Bloomington, IN, United States

Probable cause

The improper installation of a rudder control cable connector and its subsequent separation from the bellcrank, which resulted in the loss of directional control during takeoff.

— NTSB Determination

Accident narrative

On April 14, 2013, about 1645 eastern daylight time, an experimental amateur-built Stoddard-Hamilton TD, N95RL, impacted terrain following a loss of directional control during takeoff at Monroe County Airport (BMG), Bloomington, Indiana. A rudder cable separated at a connector during the takeoff. The private pilot was uninjured. The airplane sustained substantial damage to the fuselage and right wing. The airplane was registered to an individual and operated by the pilot under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed and a flight plan had not been filed for the local flight that was originating at the time of the accident.

The pilot stated that he applied partial engine power to start the takeoff roll and added right rudder to maintain directional control down the runway. As the tailwheel lifted off the runway, the pilot applied additional right rudder input and added more engine power. The pilot heard something break and lost rudder control. He "quickly" reduced engine power to idle, and the airplane made a hard left turn. The airplane veered off the left side of the runway into soft grass. The airplane came to rested on its nose.

The pilot's safety recommendation was "Closer inspection of rudder cable swages. Apply 'slippage indicator', i.e. torque seal, nail polish, to rudder cable at swage."

Examination of the airplane by a Federal Aviation Administration inspector confirmed continuity of the flight controls. When pressing the right rudder pedal there was no response at the rudder. While checking for damage it was noted that the right main gear was severely damaged with a hole in the composite wing and in the side of the fuselage. Both propeller blades were bent from impact with the ground. The right wing tip was scraped, and the navigation light was broken. The right rudder cable was not attached to the bellcrank. The cable slipped out of a connector. The connector collar was not properly crimped, allowing the cable to slip. It was also noted that the left cable appeared to be slipping with very little of the cut end protruding from the connector.

The aircraft data plate was made of a material consistent with paper or plastic that did not meet the requirements of Part 45. The aircraft owner stated that the data plate has been on the aircraft since it was certificated in 1994.

The maintenance record showed the last condition inspection was dated October 25, 2012, and a record indicated that a single strand of the left rudder cable was broken where it ran over a pulley. The airplane owner said the airplane was inspected every year and there has been no change in the rudder cable strand.

Contributing factors

  • cause Rudder control system — Failure
  • cause Owner/builder
  • cause Attain/maintain not possible

Conditions

Weather
VMC, wind 150/12kt, vis 10sm

Loading the flight search…

What you can do on Flight Finder

  • Search flights between any two airports with live fares.
  • By aircraft — pick a plane model (e.g. Boeing 787, Airbus A350) and see every route it flies from your origin.
  • Route map — click any airport worldwide to explore its destinations, or draw a radius to find nearby airports.
  • Global aviation safety — aviation accident database, 5,200+ records since 1980, with map and rankings by aircraft and operator.
  • NTSB safety feed — recent U.S. aviation accidents and incidents from the official NTSB CAROL database, updated daily.

Frequently asked questions

How do I search flights by aircraft type on FlightFinder?

Pick an aircraft model — Boeing 737, Airbus A320, A380, Boeing 787 Dreamliner and more — enter your origin airport, and FlightFinder shows every route that plane flies from there with live fares.

Which aircraft types can I filter by?

We support Boeing 737/747/757/767/777/787, the full Airbus A220/A319/A320/A321/A330/A340/A350/A380 family, Embraer E170/E175/E190/E195, Bombardier CRJ and Dash 8, and the ATR 42/72 turboprops.

Is FlightFinder free to use?

Search and schedules are free. Pro ($4.99/month, $39/year, or $99 one-time lifetime) unlocks the enriched flight card — on-time stats, CO₂ per passenger, amenities, live gate & weather — plus My Trips with push alerts.

Where does the route data come from?

Live schedules come from Amadeus, AeroDataBox and Travelpayouts. Observed routes (which aircraft actually flew a given city pair) are crowdsourced from adsb.lol ADS-B data under the Open Database License.