# NTSB CHI86LA173: Lake LA-250, N1402X, Frankfort, MI, July 18, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 17, 1986, 21:35 local (Jul 18, 1986, 01:35 UTC)
- Place: Frankfort, MI
- Coordinates: 44.629238, -86.230773 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.6292&lon=-86.2308&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 13487
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI86LA173
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13487/pdf
- Page: https://openairdocs.org/ntsb/CHI86LA173

## Sequence of events

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

- In flight encounter with weather, go-around (vfr)
  - weather condition - crosswind (contributing factor)
  - weather condition - gusts (contributing factor)
  - go-around - attempted, pilot in command
- Loss of control - in flight, go-around (vfr)
  - compensation for wind conditions - inadequate, pilot in command (cause)
- In flight collision with object, go-around (vfr)
  - object - airport facility (contributing factor)

## Analysis

THE PLT RPRTD THAT DURING AN ATTEMPTED GO-AROUND, A CROSSWIND CAUGHT THE RIGHT WING AND BLEW THE ACFT TO THE LEFT. THE LEFT WING HIT A HANGAR DOOR & WAS TORN OFF, THEN THE ACFT CRASHED TO THE GROUND & CAME TO REST UPSIDE DOWN. THE WIND WAS RPRTD TO BE GUSTING TO 17 KNOTS.

## Aircraft

- Registration: [N1402X](https://openairdocs.org/aircraft/N1402X), registered now, S/N 24, built 1985 (OpenAirDocs)
- Reported make and model: LAKE LA-250
- Registry model: [Aerofab LAKE LA-250](https://openairdocs.org/model/aerofab-lake-la-250) (registry code 5110321) (OpenAirDocs)
- Registry engine: [Lycoming IO-540 series](https://openairdocs.org/engine/lycoming-io-540-series) (registry code 41530, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 24
- Airframe hours: 74
- Engines: LYCOMING IO-540-C4B5 250 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Isla Del Lago, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 1, 1985, 74 hours before
- Departed: TVC, TRAVERSE CITY, MI
- Airport: 3D4, Frankfort Muni, runway 14, 3,250 × 50 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; private; airplane ratings: single-engine land, single-engine sea; medical: class 2, valid medical--no waivers/lim.; seat: left; flight hours: 156 total, 33 in this make and model, 42 as pilot in command, 24 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 210° at 10 knots, gusting 17
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 82 °F, dew point 73 °F
- Altimeter: 29.00 inHg
- Observed at: TVC, 28 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 19860717033959A](https://openairdocs.org/incident/19860717033959A), Jul 17, 1986: Conaer LA4250, Frankfort, MI, Destroyed. Gusty winds blew aircraft towards side of runway. Pilot attempted to go around but wingtip struck a hangar.

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.