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Dangerous training techniques fatal for two

By NTSB · March 6, 2019 ·

The private pilot, who had recently purchased the Beech B60, and the flight instructor were conducting an instructional flight in the multi-engine airplane to meet insurance requirements.

Radar data for the accident flight, which occurred on the second day of two days of training, showed the airplane maneuvering between 1,000′ and 1,200′ above ground level (agl) just before the accident.

The witness descriptions of the accident were consistent with the airplane transitioning from slow flight into a stall that developed into a spin from which the pilots were unable to recover before the airplane hit terrain near Duette, Florida. Both men died in the crash.

Examination of the wreckage did not reveal evidence of any preexisting mechanical malfunctions or anomalies that would have precluded normal operation of the airplane.

After the first day of training, the pilot told friends and fellow pilots that the instructor provided non-standard training that included stall practice that required emergency recoveries at low airspeed and low altitude.

The instructor used techniques that were not in keeping with established flight training standards and were not what would be expected from an individual with his extensive background in general aviation flight instruction.

Most critically, the instructor used two techniques that introduced unnecessary risk: Increasing power before reducing the angle of attack during a stall recovery and introducing asymmetric power while recovering from a stall in a multi-engine airplane. Both techniques are dangerous errors because they can lead to an airplane entering a spin.

At one point during the first day of training, the airplane entered a full stall and spun before control was regained at very low altitude.

The procedures performed contradicted standard practice and FAA guidance, yet, despite the pilot’s experience in multi-engine airplanes and in the accident airplane make and model, he chose to continue the second day of training with the instructor instead of seeking a replacement to complete the insurance check out.

The spin encountered on the accident flight likely resulted from the stall recovery errors advocated by the instructor and practiced on the prior day’s flight. Unlike the previous flight, the accident flight did not have sufficient altitude for recovery because of the low altitude it was operating at, which was below the safe altitude required for stall training (one which allows recovery no lower than 3,000′ agl).

Probable cause: The pilots’ decision to perform flight training maneuvers at low airspeed at an altitude that was insufficient for stall recovery. Contributing to the accident was the flight instructor’s inappropriate use of non-standard stall recovery techniques.

NTSB Identification: ERA17FA119

This March 2017 accident report is provided by the National Transportation Safety Board. Published as an educational tool, it is intended to help pilots learn from the misfortunes of others.

About NTSB

The National Transportation Safety Board is an independent federal agency charged by Congress with investigating every civil aviation accident in the United States and significant events in the other modes of transportation, including railroad, transit, highway, marine, pipeline, and commercial space. It determines the probable causes of accidents and issues safety recommendations aimed at preventing future occurrences.

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Comments

  1. Jim Macklin, ATP CFI ASMEI says

    March 7, 2019 at 5:17 am

    The B60 Duke is a wonderful airplane but it is heavy and needs plenty of altitudes for flight training maneuvers. 5,000 FT AGL is a good idea for beginning a training series.
    Because of the negative angle of attack, take-offs require a soft field technique to reduce rolling resistance with back pressure reduced to prevent a lift-off below Vmc.
    It is really a nice and well mannered airplane but it ISN’T a trainer.

    • gbigs says

      March 7, 2019 at 6:47 am

      The aircraft is not to blame. The CFI is to blame. And the pilot/owner shares some of the blame if he had enough experience to know better.

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