# NTSB CHI86FER02: Monnett Moni, N295MM, Winona, MN, March 29, 1986

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Final report
- Date: March 29, 1986, 12:30 local (18:30 UTC)
- Place: Winona, MN
- Coordinates: 44.039932, -91.650878 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.0399&lon=-91.6509&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 13318
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI86FER02
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13318/pdf
- Page: https://openairdocs.org/ntsb/CHI86FER02

## Sequence of events

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

- Loss of engine power, cruise - normal
  - reason for occurrence undetermined (cause)
- Forced landing, descent - emergency
- Hard landing, landing - flare/touchdown

## Analysis

THE ACFT CRASH LANDED OFF THE ARPT DUE TO A REPORTED LOSS OF POWER. THE PLT LANDED IN A SMALL FIELD SURROUNDED BY HILLS. THE ACFT SINK RATE DURING THE LANDING WAS HIGH AND THE ACFT WAS DAMAGED. INSPECTION OF THE ENG AFTER THE ACC WAS NOT ACCOMPLISHED DUE TO LACK OF COORDINATION BY THE OWNER WHO WAS TRYING TO GET A FACTORY WARRANTY ON THE 51 HOUR ENGINE.

## Aircraft

- Registration: [N295MM](https://openairdocs.org/deregistered/N295MM-2013-04-02), registration cancelled 2013-04-02, S/N 00295 (OpenAirDocs)
- Reported make and model: MONNETT MONI
- Registry model: [Mimbach Mark J MONNETT MONI](https://openairdocs.org/model/mimbach-mark-j-monnett-moni) (registry code 056595R) (OpenAirDocs)
- Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 295
- Airframe hours: 51
- Engines: KFM MAXI 25 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Mark John Mimbach
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, February 6, 1986, 6 hours before
- Departed: ONA, WINONA AIRPORT, MN
- Destination: STC, ST CLOUND ARPT, MN

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: center; flight hours: 500 total, 51 in this make and model, 9 in the last 90 days, 6 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 8 knots
- Visibility: 6 statute miles
- Lowest ceiling: none
- Temperature: 73 °F, dew point 75 °F
- Altimeter: 29.00 inHg
- Observed at: LSE, 28 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 19860329008069A](https://openairdocs.org/incident/19860329008069A), Mar 29, 1986: Amtr MONI, Winona, MN, Substantial damage. Impacted ground on emergency landing after engine power loss. No investigation,lack of coordination by the owner.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.