# NTSB CHI84LA330: Dahlman BD4, N3332, Grand Haven, MI, August 4, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 4, 1984, 16:20 local (20:20 UTC)
- Place: Grand Haven, MI
- Coordinates: 42.979755, -85.709846 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.9798&lon=-85.7098&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12724
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA330
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12724/pdf
- Page: https://openairdocs.org/ntsb/CHI84LA330

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Loss of control - in flight, landing - flare/touchdown
  - weather condition - gusts (contributing factor)
  - weather condition - crosswind (contributing factor)
  - compensation for wind conditions - not performed, pilot in command (cause)
  - directional control - not maintained, pilot in command (cause)
- Main gear collapsed, landing - roll
  - terrain condition - rough/uneven
  - landing gear,main gear - overload

## Analysis

THE PILOT INDICATED THAT HE OBSERVED THE WIND TEE INDICATING A WESTERLY WIND BUT DURING LANDING FLARE/ROLL, A GUSTY WIND FROM THE SOUTH CAUSED THE ACFT TO VEER TO THE RIGHT. THE ACFT VEERED OFF THE RUNWAY AND THE LEFT MAIN GEAR SEPARATED.

## Aircraft

- Registration: [N3332](https://openairdocs.org/aircraft/N3332), registered now, S/N 25, built 1971 (OpenAirDocs)
- Reported make and model: DAHLMAN BD4
- Registry model: [Dahlman Francis G BEDE BD-4](https://openairdocs.org/model/dahlman-francis-g-bede-bd-4) (registry code 05612AD) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 25
- Airframe hours: 33
- Engines: LYCOMING O-320 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Gregory Scott Degaynor
- Airworthiness certificate: Special, Experimental (Special)
- Departed: OSH, OSHKOSH, WI
- Airport: 3GM, Grand Haven Mem., runway 27, 3,750 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 42; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 256 total, 33 in this make and model, 13 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 250° at 6 knots
- Visibility: 5 statute miles
- Lowest ceiling: 7,000 ft overcast
- Temperature: 82 °F, dew point 64 °F
- Altimeter: 30.00 inHg
- Observed at: MKG, 8 nm away

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19840804037839A](https://openairdocs.org/incident/19840804037839A), Aug 4, 1984: Amtrbd BEDEBD4, Grand Haven, MI, Substantial damage. Aircraft veered right during landing roll, departed side of runway.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.