# NTSB NYC96LA042: Cessna 150G, N2970J, East Hampton, NY, December 23, 1995 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: December 23, 1995, 11:35 local (16:35 UTC) - Place: East Hampton, NY - Coordinates: 40.949748, -72.190338 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=40.9497&lon=-72.1903&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report June 22, 1996 - Report: Approved by Office Director - NTSB case key (mKey): 39135 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC96LA042 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/39135/pdf - Page: https://openairdocs.org/ntsb/NYC96LA042 ## Probable cause failure of the flight instructor to adequately supervise the dual student pilot and ensure that directional control of the airplane was maintained. The icy runway was a related factor. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - on ground/water, takeoff - roll/run - airport facilities,runway/landing area condition - icy (contributing factor) - directional control - not maintained, pilot in command(cfi) (cause) - supervision - inadequate, pilot in command(cfi) (cause) - On ground/water encounter with terrain/water, takeoff - aborted - airport facilities,runway/landing area condition - snowbank - Nose over, takeoff - aborted ## Analysis A dual student initiated a short field takeoff on runway 28. As the airplane neared rotation speed, it encountered a large patch of ice and started to drift left. The student pilot aborted the takeoff, and directional control was recovered. When the student pilot applied rudder to return to the center of the runway, the airplane again drifted left until it was into the snow at the left edge of the runway. The airplane then nosed over onto its back. The flight instructor reported that he coached the student, but did not take control of the airplane. About 25 percent of the runway surface was reported to be covered with ice, with more ice on the first 1/3 of the runway. No evidence of a malfunction with the flight controls, wheels, or brakes was found. The wind was reported as 290 degrees at 15 knots. Runway 28 was 4242 feet long and 75 feet wide. ## Factual narrative On December 23, 1995, at 1135 eastern standard time, a Cessna 150G, N2970J was substantially damaged during an aborted takeoff at the East Hampton Airport, East Hampton, New York. The flight instructor and student pilot were not injured. Visual meteorological conditions prevailed, and no flight plan had been filed for the local instructional flight which originated at East Hampton, and which was operated under 14 CFR Part 91. In the NTSB Accident Report, the flight instructor stated: ...We began the short field takeoff roll, and as we approached rotation speed of 60 MPH we ran over a large section of icy runway. The airplane began to slid to the left. My student elected to abort the takeoff...We were able to stop the lateral motion...but the aircraft was displaced 10-15 feet from the centerline. We attempted to correct the course with rudder inputs but the aircraft just started to slide again. The left main wheel entered the snow at the left edge of the runway ...the nose pitched forward until the spinner was snowplowing under the surface of the snow. After skidding on the nose for perhaps 20 yards, the spinner tip dug into the ground and the airplane pivoted on the spinner and flipped onto its back.... In a telephone interview, the flight instructor reported that he did not take control of the airplane during the aborted takeoff. He coached the student pilot, but did not touch the flight controls. In a telephone interview, an FAA Safety Inspector (Operations) from the Farmingdale Flight Standards District Office report that runway was spotty with patched of snow and ice. The accumulations were heavier on the first 1/3 of the runway and covered about 25 percent of the surface. A check of the airplane by an airworthiness inspector found no problems with the wheels, brakes, or flight controls. ## Aircraft - Registration: [N2970J](https://openairdocs.org/aircraft/N2970J), registered now, S/N 15065770, built 1966 (OpenAirDocs) - Reported make and model: CESSNA 150G - Registry model: [Cessna 150G](https://openairdocs.org/model/cessna-150g) (registry code 2071816) (OpenAirDocs) - Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 150-65770 - Airframe hours: 3400 - Engines: Continental O-200-A 100 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Sound Aviation - Registered owner: Kdm Aviation - Airworthiness certificate: Standard, Normal - Last inspection: Annual, December 23, 1995, 1 hours before - Departed: HTO - Airport: HTO, East Hampton, runway 28, 4,242 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 28; flight instructor, commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: right; flight hours: 1,540 total, 100 in this make and model, 1,412 as pilot in command, 192 in the last 90 days, 10 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 290° at 15 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 34 °F, dew point 28 °F - Altimeter: 29.00 inHg - Observed at: HTO ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 19951223042449A](https://openairdocs.org/incident/19951223042449A), Dec 23, 1995: Cessna 150G, East Hampton, NY, Substantial damage. Began sliding sideways on takeoff from icy runway. Aborted. Slid into snowbank and flipped over. ## Other investigations on N2970J (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB NYC70D0014](https://openairdocs.org/ntsb/NYC70D0014), Jun 29, 1969: Cessna 150 (N2970J), Williamstown, NJ, substantial damage From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.