Sunday, July 17, 2016

Vans RV-7A, N228MG: Accident occurred July 16, 2016 at Whidbey Air Park (W10), Langley, Island County, Washington

National Transportation Safety Board - Aviation Accident Factual Report:

National Transportation Safety Board - Docket And Docket Items: 

Aviation Accident Final Report  -   National Transportation Safety Board:

Docket And Docket Items -  National Transportation Safety Board:

Aviation Accident Data Summary  -  National Transportation Safety Board:

NTSB Identification: GAA16CA382
14 CFR Part 91: General Aviation
Accident occurred Saturday, July 16, 2016 in Langley, WA
Probable Cause Approval Date: 12/05/2016
Aircraft: GONZALEZ MANUEL A RV 7, registration: N228MG
Injuries: 1 Minor.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The pilot of a tailwheel equipped airplane reported that due to the tall trees that surrounded the airport he elected to land to the north with a tailwind because of "less tree obstacles". He further reported that the airplane "touched down too far down the runway". He attempted to stop the airplane from over running the runway, but was unsuccessful. The airplane over ran the runway, impacted a grass berm, and nosed over.

The airplane sustained substantial damage to the empennage. 

According to the pilot there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation. 

The Federal Aviation Administration has published the Advisory Circular (AC) 91-79A. This AC discusses the hazards associated with runway overruns and the effect of a tailwind on landing distance and states in part:

The pilot must be aware of airspeed during the approach and of the targeted reference landing airspeed (VREF)/airspeed, plus wind gust adjustments, over the runway threshold. An excessive approach speed may result in an excessive speed over the runway's threshold, which may result in landing beyond the intended touchdown point as well as a higher speed from which the pilot must bring the airplane to a stop.

The effect of a tailwind on landing distance is significant and is a factor in determining the landing distance required. Given the airplane will land at a particular airspeed, independent of the wind, the principal effect of a tailwind on operational landing distance is the change in the ground speed at which the airplane touches down.

The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
The pilot's decision to land with a tailwind, which resulted in, landing long, a runway overrun, and impact with a berm and nose over.

Incident Report: On Saturday afternoon at approximately 3:15pm, South Whidbey Fire Department responders were called to a report of a small aircraft that had crashed at the Whidbey Airpark near Langley. The incident occurred during the landing and the pilot was transported to Whidbey Health for further treatment of non-critical injuries.

WHIDBEY ISLAND, Wash. – Investigators are piecing together what made a pilot crash his plane at the Whidbey Airpark near Langley Saturday afternoon.

The South Whidbey fire department says they responded to the scene around 3:15 p.m..

The incident occurred during landing and the pilot was transported with non-life threatening injuries to Whidbey Health.

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