ERA13FA215 · Schweizer SGS 2-32
Long Island Soaring Assoc Schweizer SGS 2-32 · Accident: aerodynamic stall/spin on approach
From Brookhaven Calabro Airport (HWV) to Brookhaven Calabro Airport (HWV)
Event
- NTSB case
- ERA13FA215
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 1 · all aircraft and ground
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Schweizer SGS 2-32
- Aircraft type
- Schweizer SGS-2
- Category
- Glider
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N9857E
- Operator
- Long Island Soaring Assoc
- Onboard fatalities
- Unknown
- Route
- From Brookhaven Calabro Airport (HWV), Shirley, NYTo Brookhaven Calabro Airport (HWV), Shirley, NY
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Approach
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Aerodynamic stall/spin
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Aircraft › Aircraft oper/perf/capability
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
Immediately following an uneventful checkout flight, the glider was towed and released for the pilot's solo flight. According to the pilot's flight instructor, the solo flight appeared normal during final approach to about 250 feet above ground level, then the glider's left wing dropped, consistent with a stall, and the glider subsequently descended to the ground. The tow pilot indicated that he observed that the glider's dive brakes were half-deployed, which was "normal."
Although the pilot had a documented history of hypertension, the autopsy reported no evidence indicating that he had a heart attack during the accident flight. Toxicological testing revealed therapeutic levels of diphenhydramine, consistent with the pilot taking the medication about 2 to 3 hours before the accident. Diphenhydramine is a sedating antihistamine and could have impaired the pilot's cognitive and psychomotor performance.
Probable cause
The pilot’s failure to maintain airspeed during final approach, which resulted in a stall. Contributing to the accident was the pilot’s likely impairment due to an over-the-counter sedating antihistamine.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA13FA215
- Event ID
- 20130427X24846
- Case number
- ERA13FA215
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 255513e5b629957e0a5768efc4a6f074fb8444f3392ac3ab7e5a051802759476; retrieved 2026-09-14T15:55:56.834Z.