# NTSB CHI84LA358: Piper PA-12, N7890H, Cottage Grove, WI, August 23, 1984

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: August 22, 1984, 19:00 local (Aug 23, 1984, 00:00 UTC)
- Place: Cottage Grove, WI
- Coordinates: 43.080413, -89.199539 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=43.0804&lon=-89.1995&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 12748
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA358
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12748/pdf
- Page: https://openairdocs.org/ntsb/CHI84LA358

## Sequence of events

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

- Loss of engine power, maneuvering
  - reason for occurrence undetermined (cause)
- Forced landing, descent - emergency
- Hard landing, landing - roll
  - flare - improper, pilot in command (cause)
  - proper descent rate - exceeded, pilot in command (cause)

## Analysis

WHILE OVER-FLYING A LOCAL ARPT AT APRX 200 FT AGL THE ENG LOST POWER. A FORCED LANDING WAS MADE IN AN ADJACENT ALFALFA FIELD. THE ACFT LANDED HARD IN A NOSE LOW ATTITUDE AND CAME TO REST ABOUT 90 FT FROM INITIAL GROUND CONTACT.

## Aircraft

- Registration: [N7890H](https://openairdocs.org/aircraft/N7890H), registered now, S/N 12-794, built 1946 (OpenAirDocs)
- Reported make and model: PIPER PA-12
- Registry model: [Piper PA-12](https://openairdocs.org/model/piper-pa-12) (registry code 7101202) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Serial number: 12-794
- Airframe hours: 6
- Engines: LYCOMING O-320-E2A 115 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Brian E. Linden
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, July 24, 1984, 1,414 hours before
- Departed: STOUGHTON, WI

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 55; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: front; flight hours: 895 total, 6 in this make and model, 800 as pilot in command, 18 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 20° at 5 knots
- Visibility: 10 statute miles
- Lowest ceiling: 10,000 ft broken
- Temperature: 81 °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 19840822042899A](https://openairdocs.org/incident/19840822042899A), Aug 22, 1984: Piper PA12, Cottage Grove, WI, Substantial damage. Engine quit. Hard landing in field. Fuel system lines modified, no previous service difficulty report of this kind.

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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