SEA07CA271 · Langley Tri-Quickie
Langley Tri-Quickie · Accident: loss of control on ground/water during takeoff
From Chino Airport (CNO) to Chino Airport (CNO)
Event
- NTSB case
- SEA07CA271
- 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
Langley Tri-Quickie
- Aircraft type
- Langley TRI-QUICKIE
- Category
- Airplane
- 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
- N33LQ
- Operator
- Larry L Severson · private individual
- Onboard fatalities
- Unknown
- Route
- From Chino Airport (CNO), China, CATo Chino Airport (CNO), China, 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
- Takeoff · roll/run
- 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
- Loss of control on ground/water
- 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 › Elevator trim, not verified
- Pilot in command › Rotation, premature
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The pilot stated that while taking off on Runway 26R the airplane pitched up, which resulted in a tail strike. The pilot reported that he was able to "...[get] the nose down, but [the airplane] pitched up again for another tail strike." The pilot revealed that after he "chopped the power" the airplane drifted off the runway to the left and subsequently impacted terrain with its left wing, coming to rest in an inverted position approximately 70 feet off the south side of the runway. The pilot stated that no mechanical anomalies were noted with the airplane prior to the takeoff. The pilot further stated that the airplane was equipped with a trim control (reflexor) on a push-pull cable that was mounted on the center console aft of the control stick, and operated opposite the "normal" nose up - aft, nose down - forward positions. The pilot reported that he didn't notice the trim position prior to flight and was not able to perform the required [trim] action "at a critical time." The pilot stated, "Failure to observe [the trim] position and reset [the trim] makes this accident 'pilot error.'" As a result of the impact forces both wings and canard were sheared off, the engine separated, and the fuselage was separated forward of the tail section.
Probable cause
The premature rotation of the airplane on the takeoff roll as a result of the pilot failing the verify the elevator trim position, resulting in a loss of control and subsequent impact with terrain during an aborted takeoff.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record SEA07CA271
- Event ID
- 20071026X01669
- Case number
- SEA07CA271
- 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: 24a9003314d8adf902d4c604eced76d09bc630ce1bf3d6b2bf7933b9d035c438; retrieved 2026-09-21T18:23:20.806Z.