# NTSB MKC87LA014: Cessna 170B, N8173A, Hyannis, NE, November 3, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 3, 1986, 14:00 local (21:00 UTC)
- Place: Hyannis, NE
- Coordinates: 42.000183, -101.759841 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.0002&lon=-101.7598&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 34319
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC87LA014
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34319/pdf
- Page: https://openairdocs.org/ntsb/MKC87LA014

## Sequence of events

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

- On ground/water encounter with terrain/water, landing - roll
  - in-flight planning/decision - improper, pilot in command (contributing factor)
  - overconfidence in personal ability, pilot in command (contributing factor)
  - terrain condition - rough/uneven (contributing factor)
  - aborted landing - not performed, pilot in command (cause)
  - overconfidence in aircraft's ability, pilot in command (contributing factor)
- Loss of control - on ground/water, landing - roll
  - directional control - not maintained, pilot in command (cause)
- Nose over, landing - roll

## Analysis

THE PILOT STATED THAT HE WAS SERVICING CUSTOMERS WHILE ON THIS BUSINESS TRIP.  ON HIS NEXT CALL, THE PILOT FURTHER STATED, HE WAS TO LAND IN A HAY FIELD THAT HE HAD PREVIOUSLY USED BUT, DUE TO WATER IN THE AREA, HE ELECTED TO LAND ON HIGHER GROUNDS.  UPON LANDING, THE AIRPLANE ROLLED OVER ROUGH TERRAIN, WENT OUT OF CONTROL AND NOSED OVER.

## Aircraft

- Registration: [N8173A](https://openairdocs.org/deregistered/N8173A-2012-11-09), registration cancelled 2012-11-09, S/N 25025, 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: [Franklin 6A4165 series](https://openairdocs.org/engine/franklin-6a4165-series) (registry code 27025, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 25025
- Airframe hours: 5078
- Engines: LYCOMING O-360-A2F 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Registered owner: Karl H. Storjohann
- Airworthiness certificate: Standard, Utility; Standard, Normal
- Last inspection: Annual, February 23, 1986, 105 hours before
- Departed: HYANNIS, NE

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 49; commercial; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; flight hours: 4,656 total, 4,043 in this make and model, 4,570 as pilot in command, 40 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 300° at 12 knots
- Visibility: 25 statute miles
- Temperature: 50 °F, dew point 37 °F
- Altimeter: 30.00 inHg
- Observed at: LBF, 59 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 19861103058979A](https://openairdocs.org/incident/19861103058979A), Nov 3, 1986: Cessna 170B, Hyannis, NE, Substantial damage. The aircraft nosed over during a landing in a rough hay field. Was landing in farm fields to conduct business.

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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