# NTSB CHI87DER01: Cessna 185D, N1502F, St. Paul, MN, November 29, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: November 29, 1986, 09:24 local (15:24 UTC)
- Place: St. Paul, MN
- Coordinates: 44.93087, -93.07962 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.9309&lon=-93.0796&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): 13582
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI87DER01
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13582/pdf
- Page: https://openairdocs.org/ntsb/CHI87DER01

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - directional control - not maintained, pilot in command (cause)
  - landing gear,ski assembly - failure,partial (cause)
- Nose over, landing - roll
  - remedial action - delayed, pilot in command (cause)
  - go-around - attempted, pilot in command

## Analysis

DURING LANDING AFTER THE SKIS HAD TOUCHED DOWN THE ACFT BEGAN TO SWERVE. AS THE ACFT LEFT THE RWY THE PLT ATTEMTPED A GO-AROUND, HOWEVER, ONE SKI DUG INTO THE GROUND AND THE ACFT FLIPPED OVER ONTO IT'S BACK. POST ACCIDENT EXAM REVEALED THE RIGHT SKI HAD BROKEN OFF AT THE AXLE ATTACH POINT ON THE LANDING GEAR.

## Aircraft

- Registration: N1502F (not matched to a registry record)
- Reported make and model: CESSNA 185D
- Category: Airplane
- Serial number: 1850802
- Airframe hours: 2229
- Engines: CONTINENTAL IO-520-D23 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Gerald Olsen
- Registered owner: Gerald Edgar Olsen
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 27, 1986, 113 hours before
- Departed: 76Y, WHITE BEAR LAKE, MN
- Destination: STP, ST. PAUL, MN
- Airport: STP, St Paul Downtown, runway 30, 5,100 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; private; airplane ratings: single-engine land, single-engine sea; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 1,345 total, 278 in this make and model, 1,276 as pilot in command, 6 in the last 90 days, 2 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 20° at 6 knots
- Visibility: 15 statute miles
- Lowest ceiling: 25,000 ft broken
- Temperature: 34 °F, dew point 30 °F
- Altimeter: 30.00 inHg
- Observed at: MSP, 7 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 19861129079489A](https://openairdocs.org/incident/19861129079489A), Nov 29, 1986: Cessna 185D, St Paul, MN, Substantial damage. The right ski attachment failed during landing and the aircraft veered off the side of the 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.

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