# NTSB CHI91LA107: Beech 55, N29SF, Forest Lake, MN, March 5, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 5, 1991, 16:15 local (22:15 UTC)
- Place: Forest Lake, MN
- Coordinates: 45.270141, -92.979705 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.2701&lon=-92.9797&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report January 25, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 15022
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI91LA107
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15022/pdf
- Page: https://openairdocs.org/ntsb/CHI91LA107

## Probable cause

AN ABORTED LANDING NOT PERFORMED BY THE PILOT.  FACTORS RELATED TO THE ACCIDENT WERE A RUNWAY THAT WAS WET AND ICE COVERED.

## 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
  - terrain condition - icy (contributing factor)
  - terrain condition - wet (contributing factor)
  - aborted landing - not performed, pilot in command (cause)
- Overrun, landing - roll
- On ground/water encounter with terrain/water, landing - roll

## Analysis

THE PILOT SAID THAT DURING THE ROLL OUT AFTER LANDING HE WAS UNABLE TO STOP ON THE 2575 FOOT RUNWAY.  THE SOD RUNWAY WAS COVERED WITH WATER AND ICE.  THE AIRPLANE SKIDDED OFF THE END INTO A PLOWED FIELD WHICH RESULTED IN SUBSTANTIAL DAMAGE.

## Aircraft

- Registration: [N29SF](https://openairdocs.org/aircraft/N29SF), registered now, S/N TC-1952, built 1976 (OpenAirDocs)
- Reported make and model: BEECH 55
- Registry model: [Beech B-55](https://openairdocs.org/model/beech-b-55) (registry code 1152729) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: TC-1952
- Engines: CONTINENTAL IO-550-E1B 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Operator: Nol Tec Systems, Inc.
- Departed: SPI, SPRINGFIELD, IL
- Flight plan: IFR
- Airport: 25D, Forest Lake, runway 13, 2,575 × 145 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 49; private; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, valid medical--w/ waivers/lim; flight hours: 1,044 total, 512 in this make and model, 966 as pilot in command, 33 in the last 90 days, 13 in the last 30 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 15 statute miles
- Lowest ceiling: 9,500 ft broken
- Temperature: -0 °F, dew point -0 °F
- Observed at: MSP, 30 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 19910305009249A](https://openairdocs.org/incident/19910305009249A), Mar 5, 1991: Beech 95B55A, Forest Lake, MN, Substantial damage. Unable to stop on ice covered grass runway. Skidded sideways off end runway into frozen sod field.

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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