WPR20LA141 · Bellanca 8GCBC
Bellanca 8GCBC · Accident: loss of control in flight during takeoff
From Byron Airport (C83) to Byron Airport (C83)
Event
- NTSB case
- WPR20LA141
- 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
Bellanca 8GCBC
- Aircraft type
- Bellanca 8
- 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
- N4116Y
- Onboard fatalities
- Unknown
- Route
- From Byron Airport (C83), Byron, CATo Byron Airport (C83), Byron, CA
- Aircraft age
- About 44 years (built 1976)
- 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
- 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 control in flight
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Aircraft › Aircraft oper/perf/capability
- Personnel issues › Psychological
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The accident airplane was conducting a glider tow flight. Security camera video recordings of the accident sequence revealed that the tow airplane became airborne about midway down the runway and proceeded to make a shallow climb with the glider in trail at a similar altitude. After the tow airplane became airborne, the glider pitched upward and ascended to a higher altitude while the tow airplane remained in a shallow climb. Shortly afterward, the tow airplane began a shallow descent. Both aircraft then leveled off, with the glider still at a higher altitude than the tow airplane. As the glider began to descend and then ascend, the tow airplane pitched downward in a nose-low attitude, impacted the runway, and nosed over. A postimpact fire ensued. A pilot-rated witness stated that the tow airplane was at an altitude of about 100 ft above ground level at the time that the glider began to ascend after descending.
The pilot of the glider reported that, shortly after takeoff, the canopy began opening and closing rapidly. The glider pilot also reported that, as he attempted to secure the canopy while maintaining control of the glider, he became briefly disoriented. The glider pilot turned back toward the airport and saw that the tow airplane had crashed. The glider landed uneventfully. The glider pilot stated that part of his preflight check was to ensure that the canopy was closed and locked. Postaccident examination found no evidence of any preexisting mechanical malfunction with the glider canopy latching mechanism. It is likely that the pilot did not successfully lock the canopy before takeoff.
The open canopy likely distracted the glider pilot, and he allowed the glider to ascend to an excessive altitude behind the tow airplane, which forced the tow airplane into a nose-down attitude while at a low altitude.
Postaccident examination of the tow airplane revealed no mechanical malfunctions that would have precluded normal operations. The tow rope-cutting mechanism was engaged; thus, the tow pilot likely cut the tow rope at some point during the flight. (The tow rope was located about 80 ft beyond the main wreckage of the tow airplane in the grassy area adjacent to the runway.) However, the airplane was at an altitude that precluded recovery from the nose-down pitching moment that was induced by the high altitude of the glider.
Probable cause
The tow airplane pilot’s loss of control resulting from the glider pilot’s failure to maintain a proper altitude behind the tow airplane, which caused the tail of the tow airplane to be lifted upward and the tow airplane to pitch nose down while at a low altitude. Contributing to the accident was the glider pilot’s distraction when the canopy opened in flight.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record WPR20LA141
- Event ID
- 20200511X00738
- Case number
- WPR20LA141
- 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, cause areas. 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: 656a29b80704390ae1b126d245fd95d0fecce0fb3329574efd4d547fd60c2996; retrieved 2026-09-15T07:14:29.209Z.