ERA21LA356 · Waco GXE
Waco GXE · Accident: powerplant system/component malfunction/failure during takeoff
Event
- NTSB case
- ERA21LA356
- 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
- Event fatalities
- Unknown
- 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
Waco GXE
- Aircraft type
- Waco GXE
- 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
- N8564
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From not recordedTo not recorded
- Aircraft age
- About 92 years (built 1929)
- 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
- Powerplant system/component malfunction/failure
- 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
- Aircraft › Aircraft power plant
- Personnel issues › Task performance
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The accident flight was the vintage biplane’s first since it had been restored 2 years prior. During takeoff, once the airplane was in ground effect, the pilot described that the airplane would not climb any further even though the engine was producing power. The pilot elected to land the airplane in a nearby field and during the landing, the airplane nosed over and came to rest inverted, which resulted in substantial damage to the wings and fuselage. A postaccident examination of the engine revealed that the magnetos were set to fire about 7° away from the proper position in order to obtain full engine power. Furthermore, a historical reference handbook for the vintage engine stated that the magnetos needed to have an external lever connected to a control in the cockpit to mechanically vary the magneto to engine timing while the engine was running. The magnetos installed on the accident airplane did not have these controls installed. Based on this information, it is likely the engine could not produce full power as a result of the incorrect magneto timing.
Probable cause
The improper magneto timing, which resulted in the engine’s inability to produce full power during the takeoff.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ERA21LA356
- Event ID
- 20210914103855
- Case number
- ERA21LA356
- 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: aaa95a6689344012027bb31929f31dc4f015a35f63de6b6413ced50fe9af97cc; retrieved 2026-09-16T14:31:28.493Z.