LAX07CA104 · Schleicher ASW-27B
Schleicher ASW-27B · Accident: undershoot on approach
From Williams, CA to Williams, CA
Event
- NTSB case
- LAX07CA104
- 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
Schleicher ASW-27B
- Aircraft type
- Schleicher ASW-27
- 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
- N273W
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Williams, CATo Williams, CA
- 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 · VFR pattern final
- First occurrenceThe 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
- Undershoot
- 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
- Pilot in command › Distance/altitude, misjudged
- Pilot in command › Spoiler retraction, delayed
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The glider touched down short of the runway and ground looped during landing. The pilot returned to the airport after he couldn't find any lift. He encountered some sink on his base and final legs. He felt that he didn't retract his spoilers soon enough to prevent his landing just short of the paved runway. The glider ground looped, which broke off the tail boom. The pilot made a recommendation regarding prevention of the accident. He noted that this was an uneventful day, which could lull one into not paying full attention to all phases of flight. The runway was more than long enough to allow him to land 1/4 of the way down the runway, which would have provided a much larger safety margin for his landing.
Probable cause
The pilot's misjudged distance/altitude and delay in retracting the spoilers that led to an undershoot, which resulted in a collision with terrain.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record LAX07CA104
- Event ID
- 20070425X00455
- Case number
- LAX07CA104
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
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, coordinates. 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: 94f36894e17909c1ad82fc7bda81dcd10963805ed4c49c3546fabafc2be5b53c; retrieved 2026-09-22T03:59:43.012Z.