GAA17CA427 · LET L23 Super Blan
LET L23 Super Blan · Accident: loss of lift en route
From Wetumpka Municipal Airport (08A) to Wetumpka Municipal Airport (08A)
Event
- NTSB case
- GAA17CA427
- 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
- 0 · 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
LET L23 Super Blan
- Aircraft type
- Let L23
- 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
- N342BA
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Wetumpka Municipal Airport (08A), Deatsville, ALTo Wetumpka Municipal Airport (08A), Deatsville, AL
- Aircraft age
- About 18 years (built 1999)
- 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
- En route · descent
- 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
- Loss of lift
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Tree(s); Wire
- 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
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The Chief of Safety for the operator reported that the student pilot was on a solo flight in a glider and on the return leg to the airport when he noticed that he "seemed to be sinking quickly." While talking with his instructor over the radio and scanning for an open field, he decided to land on a street in a nearby neighborhood. While on approach, the glider struck tree tops and then a power line. Subsequently, the glider rolled to the right and the right wing struck the ground. The glider came to rest on the right side of the fuselage and the student pilot exited the glider.
The glider sustained substantial damage to both wings and fuselage.
The Chief of Safety reported that there were no preaccident mechanical failures or malfunctions with the glider that would have precluded normal operation.
The automated weather observation system about 8 nautical miles from the accident site reported, about the time of the accident, wind calm, temperature 91°F, dew point 75°F, and altimeter setting 30.04 inches of mercury.
Probable cause
The student pilot’s failure to maintain clearance from trees and power lines while landing.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record GAA17CA427
- Event ID
- 20170721X95235
- Case number
- GAA17CA427
- 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: d6178b70aa6bf49705eec73e0fa7346ef95c2ef4d13c3c19db3bb7c1dd688bcd; retrieved 2026-09-16T05:34:46.031Z.