# NTSB ATL89LA094: Cessna 150G, N2805S, Springboro, OH, February 28, 1989

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: February 28, 1989, 16:50 local (21:50 UTC)
- Place: Springboro, OH
- Coordinates: 39.650405, -84.170974 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.6504&lon=-84.1710&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 29, 1991
- Report: Approved by Office Director
- NTSB case key (mKey): 7992
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL89LA094
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/7992/pdf
- Page: https://openairdocs.org/ntsb/ATL89LA094

## Probable cause

LOSS OF POWER (TAKEOFF) FROM CARBURETOR ICE DUE TO IMPROPER USE OF CARBURETOR HEAT DURING EXTENDED GROUND OPERATION USING AUTO FUEL IN WEATHER WHICH WAS CONDUCIVE TO ICING.

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, takeoff - initial climb
  - weather condition - carburetor icing conditions (contributing factor)
  - information insufficient, faa(other/organization) (contributing factor)
  - fluid,fuel grade - improper (contributing factor)
  - inadequate quality control, pilot in command (contributing factor)
  - insuff standards/requirements,operation/operator, faa(organization) (contributing factor)
  - fuel system,carburetor - ice (cause)
  - carburetor heat - improper use of, pilot in command (cause)
- Forced landing, descent - emergency
- On ground/water collision with object, landing - roll
  - object - tree(s)

## Analysis

ACFT WAS BEING FLOWN BY OWNER ON 1ST FLT AFTER ENGINE CASE HAD BEEN SPLIT, VALVE REPAIR, & CARBURETOR FLOAT REPLACEMENT. AUTO FUEL WAS BEING USED WHICH WAS PUT IN ACFT ABOUT SIX WEEKS BEFORE ACCIDENT. NO CONTAMINATION WAS FOUND IN FUEL, ENGINE WAS RUN ON TEST CELL, & CARB WAS FLOW CHECKED AFTER ACCIDENT. PIC RPTED LONG TAXI TO TAKE OFF RWY PLUS DELAY DUE TO OTHER TRAFFIC. FAA AC 91-33A NOTES CARB ICE WILL FORM AT HIGHER TEMP & MORE RAPIDLY THAN AV GAS. ICE PROBABILITY CHART SHOWED WX COND CONDUCIVE TO CARB ICE WITH USE OF AV GAS. FAA AC 20-113 RECOMMENDS USING CARB HEAT PRIOR TO TAKE OFF WHEN COND ARE CONDUCIVE TO CARB ICE TO REMOVE ANY ICE BUILT UP.

## Aircraft

- Registration: [N2805S](https://openairdocs.org/deregistered/N2805S-1991-11-20), registration cancelled 1991-11-20, S/N 15066705 (OpenAirDocs)
- Reported make and model: CESSNA 150G
- Registry model: [Cessna 150G](https://openairdocs.org/model/cessna-150g) (registry code 2071816) (OpenAirDocs)
- Category: Airplane
- Serial number: 15066075
- Airframe hours: 3033
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: David R. Vukin
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, February 15, 1989
- Airport: MGY, Dayton General South, runway 20, 5,000 × 60 ft

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 38; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 960 total, 400 in this make and model, 930 as pilot in command, 10 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 260° at 13 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 37 °F, dew point 25 °F
- Altimeter: 30.00 inHg
- Observed at: DAY, 15 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 19890228003729A](https://openairdocs.org/incident/19890228003729A), Feb 28, 1989: Cessna 150G, Dayton, OH, Substantial damage. Engine quit on climbout. Hit trees on forced landing. Used auto fuel. Temperature and humidity in carb icing range.

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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