# NTSB MKC83LA125: Cessna 170B, N8077A, Ottumwa, IA, June 10, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 10, 1983, 18:30 local (23:30 UTC)
- Place: Ottumwa, IA
- Coordinates: 41.010368, -92.410163 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.0104&lon=-92.4102&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 33420
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC83LA125
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33420/pdf
- Page: https://openairdocs.org/ntsb/MKC83LA125

## 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
  - flight advisories - issued, atc personnel(fss)
  - weather condition - high wind (contributing factor)
  - wrong runway - selected, pilot in command (cause)
  - weather condition - crosswind (contributing factor)
  - compensation for wind conditions - inadequate, pilot in command (cause)
  - directional control - not maintained, pilot in command (cause)
  - ground loop/swerve - uncontrolled, pilot in command
- Main gear collapsed, landing - roll
  - landing gear,main gear - overload

## Analysis

DURING ARRIVAL, THE PLT CANCELED HIS VFR FLT PLAN WHEN HE WAS ABOUT 3 MI FROM THE ARPT. AT THAT TIME, FSS PERSONNEL ADVISED HIM THAT THE WIND WAS FROM 190 DEG AT 14 KTS & THAT THE WIND FAVORED RWY 22. THERE WAS A TETRAHEDRON WIND INDICATOR NORTH OF THE INTERSECTION OF RWY 22 & 31. HOWEVER, THE PLT SELECTED RWY 31. WHILE ON THE LANDING ROLL, ABOUT 200 FT AFTER TOUCHDOWN, THE ACFT'S LEFT WING RAISED & THE ACFT VEERED TO THE LEFT INTO THE X-WIND. IT CONTINUED OFF THE RWY ONTO SOD SURFACE WHERE THE RIGHT MAIN GEAR DUG IN & COLLAPSED.

## Aircraft

- Registration: [N8077A](https://openairdocs.org/aircraft/N8077A), registered now, S/N 20929, built 1952 (OpenAirDocs)
- Reported make and model: CESSNA 170B
- Registry model: [Cessna 170B](https://openairdocs.org/model/cessna-170b) (registry code 2072306) (OpenAirDocs)
- Registry engine: [Continental C145 series](https://openairdocs.org/engine/continental-c145-series) (registry code 17012, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 20929
- Airframe hours: 2000
- Engines: CONTINENTAL C-145 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Ronald J. Ovans
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, December 31, 1982
- Departed: K78, ABILENE, KS
- Flight plan: VFR
- Airport: OTM, Otiumwa Industrial, runway 31, 6,499 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; military, commercial, flight instructor, airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 2,362 total, 145 in this make and model, 1,962 as pilot in command, 86 in the last 90 days, 10 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 190° at 14 knots
- Visibility: 15 statute miles
- Lowest ceiling: 25,000 ft overcast
- Temperature: 84 °F, dew point 55 °F
- Altimeter: 30.00 inHg
- Observed at: OTM

## 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 19830610025029A](https://openairdocs.org/incident/19830610025029A), Jun 10, 1983: Cessna 170B, Ottumwa, IA, Substantial damage. Elected to land with a quartering tailwind. A wing lifted after touchdown. Lost control and ground looped.

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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