# NTSB NYC01LA020: Schweizer SGS 2-33A, N2055T, Shirley, NY, October 21, 2000 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: October 21, 2000, 13:30 local (17:30 UTC) - Place: Shirley, NY - Coordinates: 40.789176, -72.869628 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=40.7892&lon=-72.8696&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report May 8, 2001 - Report: Approved by Office Director - NTSB case key (mKey): 50507 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC01LA020 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/50507/pdf - Page: https://openairdocs.org/ntsb/NYC01LA020 ## Probable cause The pilot's improper in-flight decision to abort the glide toward the airport. A factor was the pilot's failure to comply with the published best glide speed. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Forced landing, approach - in-flight planning/decision - improper, pilot in command (cause) - proper glidepath - aborted, pilot in command - procedures/directives - not complied with, pilot in command (contributing factor) ## Analysis The glider was approximately 2.5 miles south of the airport. The pilot reported that he began to encounter downdrafts, and initially flew back toward the airport at 63 mph. About 2,000 feet agl, and 1.5 miles south of the airport, the pilot observed a descent rate indication of approximately 600 fpm. The pilot thought that he would not reach the airport, and elected to attempt an off airport landing. The manufacturer's published two-place best glide speed was 50 mph. That speed resulted in a lift to drag ratio of 23-1, which corresponded to a glide of approximately 8 miles from 2,000 feet. Review of weather reports revealed the glider would have had a left quartering tailwind flying from south to north. ## Factual narrative On October 21, 2000, about 1330 Eastern Daylight Time, a Schweizer SGS 2-33A glider, N2055T, was substantially damaged during an off airport landing near Brookhaven Airport (HWV), Shirley, New York. The certificated commercial pilot and passenger were not injured. Visual meteorological conditions prevailed, and no flight plan was filed for the local personal flight conducted under 14 CFR Part 91. The pilot stated that he departed HWV about 1300, and was towed to 3,000 feet. About 1330, he was approximately 2.5 miles south of the airport, at an altitude of approximately 2,000 feet agl. The glider encountered downdrafts and began a descent of 500 feet per minute (fpm). The pilot initially flew back toward the airport, and increased his speed to 63 miles per hour (mph). The pilot added that he was about 1.5 miles south of the airport at "a little less than 2000' agl," when he observed a rate of descent indication of about 600 fpm. The pilot thought that he would not be able to reach the airport, and elected to land in a field. While on approach to the field, about 300 feet above the ground, the glider encountered another downdraft. Realizing that he was not going to reach the field, the pilot "deliberately stalled" the glider into trees. Examination of the wreckage by a Federal Aviation Administration inspector did not reveal any pre-impact mechanical malfunctions, nor did the pilot report any. The reported surface wind at HWV, at 1256, was from 210 degrees at 11 knots, gusting to 16 knots. The pilot stated that before departing HWV, he listened to the automated surface observation system via radio. Additionally, the reported wind aloft over HVW at 0700, was 255 degrees true at 23 knots, at 2,739 feet msl. The reported wind aloft over HVW at 1900, was 290 degrees true at 17 knots, 2,696 feet msl. According to the glider manufacturer, the best (two-place glider) gliding speed was 50 mph. That speed resulted in a lift to drag ratio of 23-1, which corresponded to a glide of approximately 8 miles from 2,000 feet. ## Aircraft - Registration: [N2055T](https://openairdocs.org/aircraft/N2055T), registered now, S/N 495, built 1977 (OpenAirDocs) - Reported make and model: Schweizer SGS 2-33A - Registry model: [Schweizer SGS 2-33A](https://openairdocs.org/model/schweizer-sgs-2-33a) (registry code 8051606) (OpenAirDocs) - Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs) - Category: Glider - Serial number: 495 - Airframe hours: 4700 - Engines: unknown - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Long Island Soaring Assoc. - Airworthiness certificate: Standard, Normal - Last inspection: Annual, August 1, 2000, 22 hours before - Departed: HWV - Airport: HWV, Brookhaven Airport ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 66; commercial; seat: rear; flight hours: 503 total, 360 in this make and model, 413 as pilot in command, 20 in the last 90 days, 12 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 210° at 11 knots, gusting 16 - Visibility: 8 statute miles - Lowest ceiling: none - Temperature: 64 °F, dew point 54 °F - Altimeter: 30.00 inHg - Observed at: HWV, 1 nm away ## Other investigations on N2055T (2) 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 ERA22LA370](https://openairdocs.org/ntsb/ERA22LA370), Aug 4, 2022: Schweizer SGS 2-33A (N2055T), Shirley, NY, substantial damage. Probable cause: The flight instructor’s failure to ensure clearance from an electrical junction box during takeoff, which resulted in a collision. - [NTSB NYC90LA082](https://openairdocs.org/ntsb/NYC90LA082), Mar 25, 1990: Schweizer S2-33A (N2055T), Brookhaven, NY, minor damage. Probable cause: CAUSE OF THE ACCIDENT WAS A HARD LANDING AFTER THE PILOT STALLED THE GLIDER WHILE TURNING ONTO FINAL APPROACH. 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.