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WPR09CA256 · Westerhout/Gagnier Escapade

21 May 2009 · Healdsburg, CA, United States

Westerhout/Gagnier Escapade · Accident: loss of control in flight during initial climb

From Healdsburg Municipal Airport (O31) to Healdsburg Municipal Airport (O31)

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Event

NTSB case
WPR09CA256
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

Westerhout/Gagnier Escapade

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
N29DY
Operator
Daniel York
Onboard fatalities
Unknown
Route
From Healdsburg Municipal Airport (O31), Healdsburg, CATo Healdsburg Municipal Airport (O31), Healdsburg, 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
Initial climb
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
Substantial

Cause areas

  • Aircraft › Aircraft oper/perf/capability
  • Environmental issues › Conditions/weather/phenomena
  • Personnel issues › Task performance

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

The pilot said he had completed an uneventful flight earlier in the day. On the accident flight, he performed an engine run-up, which included a magneto check with no mechanical anomalies encountered. He taxied to the active runway (runway 13), and noted the winds were light about 5 knots from the south. The takeoff roll was normal, and they lifted off at 50 mph. After rotation, the airplane started a left bank for no apparent reason. The pilot did not pull back on the control stick; however, he attempted to align the airplane with the runway. He noted that the airplane did not respond to his roll input and continued in the left bank. The pilot also stated that the airplane had started a slight climb just prior to impacting the vineyard. After the initial contact with the vineyard, the airplane became airborne again and then dropped back into the vineyard. The pilot stated that there were no mechanical problems with the airplane and he believes that the winds may have shifted to more of a south wind at the time of the loss of control event. Reported winds at the time were from 140 degrees at 5 knots.

Probable cause

The pilot's inadequate compensation for the crosswind condition and failure to maintain directional/lateral control during the initial climb.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record WPR09CA256
Event ID
20090522X81451
Case number
WPR09CA256
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. 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: 685a7e856a4bda1ed91a3f1fe7d11211c4f670a233f8dba6320842095c991fdf; retrieved 2026-09-15T11:08:57.679Z.