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Alaska Airlines Flight 261: Investigating what caused the tragedy

Aerotime

The trim on the horizontal stabilizer – the rear wing of the aircraft – was not working. Then the tone indicating the movement of the horizontal stabilizer sounded. Los Angeles air traffic control handed the plane over to approach control in preparation for its arrival at LAX.

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Voices from Combat: The Consolidated PB2Y Coronado Becomes a Bomber

Vintage Aviation News

A short 18 months later, on August 13, 1937, the XPB2Y-1 took to the skies for the first time, revealing plenty of room for improvement lateral instability was a major problem for the deep-hulled boat, so the single tail fin was augmented by two smaller fins on the horizontal stabilizers.

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The Unfulfilled Promise of the Fairchild T-46

Flying Magazine

However, as the 1980s approached, so did the end of the T-37’s projected life cycle, and military leaders determined a more modern replacement was needed. It fulfilled primary trainer duties for more than 20 years and was modified to serve as a light ground attack aircraft in the form of the A-37 Dragonfly.

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Avoiding the Stall

Plane and Pilot

Most fatalities occurred during takeoff, climb, and go-around rather than the approach to landing. Let’s take a look at how the pros train, and then consider our approach to stall and spin training with a focus on prevention. However, there are some airplanes where the approach to a stall is practiced in flight.

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What Is a Flat Spin?

Pilot Institute

PARE: Power idle, Ailerons neutral, Rudder opposite, Elevator forward. Rudder: Full opposite input to the spin direction. The problem is that the airflow from the propeller goes over the horizontal stabilizer, which produces a downward force (and causes the nose to pitch up). Ready to become a safer pilot?

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35 years ago: How a United Airlines crew landed an ‘unflyable’ DC-10

Aerotime

The primary flight controls on the DC-10 (ailerons, rudder, elevators, spoilers) were all operated by hydraulic pressure and the first officer was quick to realize that his controls were unresponsive to his inputs. During the final approach, Haynes noted a high sink rate alarm from the aircraft’s ground proximity warning syst em (GPWS).

Runway 294
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Power-on Stall: How to Recover

Pilot Institute

The turbulent air hits the horizontal stabilizer, which causes a vibration that can be felt throughout the aircraft. Poor Control Feel When the aircraft approaches a stall, the boundary layer separates from the wing. This requires rudder input to maintain directional control.