# NTSB CHI85LA220: Cessna 150H, N6458S, Montevideo, MN, June 2, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 2, 1985, 18:30 local (23:30 UTC)
- Place: Montevideo, MN
- Coordinates: 44.950939, -95.709861 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.9509&lon=-95.7099&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 13083
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI85LA220
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13083/pdf
- Page: https://openairdocs.org/ntsb/CHI85LA220

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, takeoff - initial climb
  - fuel system,carburetor - improper (cause)
  - maintenance,installation - improper, company maintenance personnel (cause)
  - maintenance,service bulletin/letter - not performed, company maintenance personnel (contributing factor)
  - maintenance,calibration - improper, company maintenance personnel (cause)
- Forced landing, maneuvering - turn to landing area (emergency)
- Nose over, landing

## Analysis

THE PURPOSE OF THE FLT WAS TO DEMONSTRATE THE ACFT TO A POSSIBLE BUYER. WHILE TAKING OFF, THE ENG LOST POWER SHORTLY AFTER THE ACFT LIFTED OFF AT ABOUT MID-FIELD. THE PLT ATTEMPTED TO TURN THE ACFT & LAND ON A CROSS-RUNWAY. HOWEVER, DUE TO HIS LOW SPEED & LOW ALT, HE WAS UNABLE TO ALIGN THE ACFT WITH THE RWY. THE ACFT WAS LANDED IN GRASS WHERE IT SUBSEQUENTLY NOSED OVER. THE ENG HAD ONLY 1 HR OF FLT TIME SINCE IT HAD BEEN OVERHAULED. DURING THE OVERHAUL, A FACET AEROSPACE CARBURETOR FLOAT KIT, NUMBER 666-915, HAD BEEN INSTALLED IN THE MARVEL SCHEBLER CARBURETOR BY THE PLT/OWNER, WHO WAS ALSO AN A&P MECHANIC. AN EXAM REVEALED THAT SERVICE BULLETIN NUMBER A1-84A WAS NOT COMPLIED WITH, THE FLOAT DROP WAS NOT ADJUSTED PROPERLY, FUEL FLOW WAS LOW, THE THROTTLE SHAFT WAS LOOSE, THE ACCELERATOR PUMP WAS DRY ROTTED & CRACKED, & THE BUTTERFLY VALVE WAS INSTALLED UPSIDE DOWN.

## Aircraft

- Registration: [N6458S](https://openairdocs.org/deregistered/N6458S-2014-11-12), registration cancelled 2014-11-12, S/N 15067258, built 1967 (OpenAirDocs)
- Reported make and model: CESSNA 150H
- Registry model: [Cessna 150H](https://openairdocs.org/model/cessna-150h) (registry code 2071818) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 15068258
- Airframe hours: 3862
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Registered owner: Howard Kron
- Airworthiness certificate: Standard, Utility
- Last inspection: Annual, May 1, 1985
- Airport: MVE, Montevideo-Chippewa, runway 32, 4,000 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: right; flight hours: 4,132 total, 350 in this make and model, 90 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 350° at 7 knots
- Visibility: 15 statute miles
- Lowest ceiling: 20,000 ft broken
- Temperature: 57 °F, dew point 36 °F
- Altimeter: 30.00 inHg
- Observed at: RWF, 25 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 19850602022379A](https://openairdocs.org/incident/19850602022379A), Jun 2, 1985: Cessna 150H, Montevideo, MN, Destroyed. About midfield on takeoff the engine quit. Nosed over in grass. Carburetor improperly rebuilt.

## Other investigations on N6458S (1)

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.

- [NTSB FTW68D0459](https://openairdocs.org/ntsb/FTW68D0459), Feb 4, 1968: Cessna 150 (N6458S), Cotulla, TX, substantial damage

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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