Aircraft strikes hangar during initial climb

Casualties unknown • Gasport, NY, US

An aircraft struck a hangar roof after encountering turbulence during its initial climb from a grass runway.

What happened

The pilot departed from a 1,650-foot long, 50-foot wide grass runway, identified as runway 27. At the time of departure, the windsock at the airport indicated winds from the west at 5 to 10 knots, while an airport approximately 15 miles away reported calm conditions.

During the initial climb, the aircraft encountered light turbulence after passing the tree line. The pilot noted that the airplane did not perform a climb as it normally would have. In an attempt to avoid a hangar located at the end of the runway, the pilot executed a shallow left turn. While this maneuver successfully avoided the first hangar, the aircraft struck a second hangar.

The second hangar was approximately 12 feet high and 50 feet wide with a flat roof, positioned about 75 to 100 feet left of the runway centerline and set back from the first structure. Upon impact, the airplane came to rest on the roof at a heading of approximately 180 degrees and a 30-degree nose-down angle. The engine and the cockpit area forward of the wings protruded through the hangar roof. The underside of the fuselage was buckled, though no structural damage was apparent on the wings. The pilot was not injured.

The investigation

The investigation included an examination of the aircraft's condition and the airfield. The pilot reported no mechanical problems with the airplane. A Federal Aviation Administration inspector confirmed that the aircraft was within weight and balance limitations during takeoff. Additionally, the inspector noted that runway 27 was maintained and the grass had been recently mowed.

Frequently asked questions

What happened in the 2001-08-11 Piper J3C-65 accident near Gasport, NY?

An aircraft struck a hangar roof after encountering turbulence during its initial climb from a grass runway.

What aircraft was involved and where did it happen?

The accident on 2001-08-11 involved a Piper J3C-65, registration N6153H, at Gasport, NY.

What was the probable cause of the accident?

The pilot's failure to obtain a proper climb airspeed which resulted in an inadvertent stall and subsequent impact with a hangar.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20010820X01729. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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