WPR12LA250 · Schempp-Hirth STANDARD CIRRUS
Schempp-Hirth STANDARD CIRRUS and Bay Area Soaring Associates Centrair C101A · Accident: midair collision while maneuvering
Event
- NTSB case
- WPR12LA250
- 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
Aircraft 1 · Schempp-Hirth STANDARD CIRRUS
- Aircraft type
- Schempp Hirth STANDARD CIRRUS
- 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
- N943SB
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Air Sailing Gliderport (NV23), Sparks, NVTo Air Sailing Gliderport (NV23), Sparks, NV
- 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
- Maneuvering
- 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
- Midair collision
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Aircraft 2 · Centrair C101A
- Aircraft type
- Centrair C101
- 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
- N101LV
- Operator
- Bay Area Soaring Associates
- Onboard fatalities
- Unknown
- Route
- From Air Sailing Gliderport (NV23), Sparks, NVTo Air Sailing Gliderport (NV23), Sparks, NV
- 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
- Maneuvering
- 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
- Midair collision
- 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 › Psychological
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
Both pilots reported that they were aware that other gliders were operating in the same area and that they were maneuvering over hilly terrain looking for convective lift when the collision occurred. The pilot of the Schempp-Hirth reported that he did not see the Centrair approaching head-on until it passed directly overhead. The pilot of the Centrair reported that he was in wings-level flight, descending through 7,000 feet above mean sea level, when he suddenly saw the Schempp-Hirth appear beneath the nose of his glider, slightly to his right, heading in the opposite direction. Neither pilot had time to react, and the left wingtip of the Schempp-Hirth collided with the right wingtip of the Centrair. Both pilots were able to return to the launch gliderport and land safely.
Probable cause
The failure of both pilots to see and avoid each other, which resulted in a midair collision.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR12LA250
- Event ID
- 20120608X61902
- Case number
- WPR12LA250
- 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: 390e9b720540a2834d4a31625d763d5e2bac36f520796fa39eaa9289624b5fd8; retrieved 2026-09-13T18:21:29.543Z.