# NTSB CHI87DER02: Cessna 150M, N714QW, Lakeville, MN, January 31, 1987

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: January 31, 1987, 10:00 local (16:00 UTC)
- Place: Lakeville, MN
- Coordinates: 44.670578, -93.239112 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.6706&lon=-93.2391&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 uninjured
- Status: Completed, report August 19, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 13583
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI87DER02
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13583/pdf
- Page: https://openairdocs.org/ntsb/CHI87DER02

## Sequence of events

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

- Propeller/rotor contact to person, standing - pre-flight
  - ignition system,ignition switch - worn (cause)
  - supervision - inadequate, pilot in command(cfi) (contributing factor)
  - starting procedure - improper, pilot in command(cfi) (cause)
  - terrain condition - icy (contributing factor)

## Analysis

THE STUDENT & INSTRUCTOR (CFI) WERE PREFLIGHTING THE ACFT TO FLY ON A COLD MORNING. TO FACILITATE BETTER ENG STARTING, THE CFI ELECTED TO TURN THE PROP WHILE THE STUDENT 'PUSHED THE PRIMER IN.' HE TOLD THE STUDENT TO CHECK THAT THE MAG & MASTER SWS WERE OFF & THE STUDENT ACKNOWLEDGED. ON THE 2ND 'TURN THROUGH,' THE ENG STARTED & RAN APRX 5 SEC. THE CFI WAS INITIALLY CLR OF THE PROP, BUT AS HE WAS BACKING AWAY, HE SLIPPED ON INCE & HIS RGT LEG WENT IN THE PATH OF THE TURNING PROP. HE WAS HOSPITALIZED WITH A SEVERE LACERATION & THE PROP WAS SLIGHTLY BENT. AN INV REVEALED THE STUDENT WAS AT THE CONTROLS WITH THE KEYS REMOVED FROM THE MAG SW. A FURTHER EXAM REVEALED THE MAG CIRCUITRY WAS NORMAL, EXCEPT THE MAGNETO KEY COULD BE REMOVED WHILE THE MAG SW WAS IN THE 'LEFT' POSITION.

## Aircraft

- Registration: [N714QW](https://openairdocs.org/aircraft/N714QW), registered now, S/N 15079360, built 1977 (OpenAirDocs)
- Reported make and model: CESSNA 150M
- Registry model: [Cessna 150M](https://openairdocs.org/model/cessna-150m) (registry code 2071830) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 15079360
- Airframe hours: 3758
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Minor damage
- Flight: Instructional, Part 91
- Operator: Kenneth Frizzell
- Registered owner: Airlake Aero Club Inc.
- Airworthiness certificate: Standard, Utility
- Last inspection: Annual, December 17, 1986, 70 hours before
- Airport: Y12, Airlake

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; airline transport, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; flight hours: 4,052 total, 865 in this make and model, 3,836 as pilot in command, 11 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: 8,000 ft overcast
- Temperature: 25 °F, dew point 7 °F

## 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 19870131001539A](https://openairdocs.org/incident/19870131001539A), Jan 31, 1987: Cessna 150M, Lakeville, MN, Minor damage. Pilot slipped on ice while pulling engine thru and was hit by prop. Faulty ignition key removed with left mag on.

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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