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WPR22LA365 · Mary Alexander JA30 SUPERSTOL

30 Sept 2022 · Groveland, CA, United States

Mary Alexander JA30 SUPERSTOL · Accident: nose over/nose down while taxiing

From Pine Mountain Lake Airport (E45) to an unrecorded destination

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Event

NTSB case
WPR22LA365
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

Mary Alexander JA30 SUPERSTOL

Aircraft type
Mary Alexander JA30
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
N119AM
Operator
Unknown
Onboard fatalities
Unknown
Route
From Pine Mountain Lake Airport (E45), Groveland, CATo not recorded
Aircraft age
About 8 years (built 2014)
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
Taxi
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
Nose over/nose down
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 systems
  • Environmental issues › Physical environment
  • Personnel issues › Task performance

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 reported that, as he taxied down the runway, he observed a deer on the right side of the airplane. The deer made a quick left turn in front of the airplane and the pilot aggressively applied the brakes. The airplane subsequently nosed over and came to rest inverted. The left wing, wing strut and vertical stabilizer were substantially damaged. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Probable cause

The pilot's excessive application of brake during an attempt to avoid wildlife while taxing resulted in a nose over.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record WPR22LA365
Event ID
20221003106046
Case number
WPR22LA365
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: local date, investigation status, coordinates, cause areas. Values present in the bulk record are kept.
  • The date is the local date; the NTSB stores the UTC date 2022-10-01.
  • API snapshot SHA-256: b4905f49e90ed1bb81f6b3f605a2be28a727f13339500cbfdcf6903608f727db; retrieved 2026-09-16T16:10:01.139Z.