# NTSB CHI86FEI01: Monnet Moni, N685TC, Perry, OH, December 30, 1985

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Final report
- Date: December 30, 1985, 12:00 local (17:00 UTC)
- Place: Perry, OH
- Coordinates: 41.719093, -81.239166 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.7191&lon=-81.2392&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): 13292
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI86FEI01
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13292/pdf
- Page: https://openairdocs.org/ntsb/CHI86FEI01

## Sequence of events

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

- Airframe/component/system failure/malfunction, cruise
  - flight control surfaces/attachments - failure,partial (cause)
- Loss of control - in flight, cruise
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

AFTER INITIATING A 180 DEG TURN, THE PLT HEARD A 'THUMP' AND NOTED A LOW VIBRATION. THE ACFT THEN PITCHED DOWN ABRUPTLY AND ENTERED AN INVERTED SPIN TO GROUND CONTACT. THE PLT STATED AN IN FLIGHT STRUCTURAL FAILURE OF THE TAIL SECTION HAD OCCURRED WHICH RESULTED IN THE LOSS OF CONTROL.

## Aircraft

- Registration: N685TC (not matched to a registry record)
- Reported make and model: MONNET MONI
- Category: Airplane, amateur-built
- Serial number: 279
- Airframe hours: 19
- Engines: KFM KFM 107E 22 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Timothy J. Connor
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Unknown, July 2, 1985, 19 hours before
- Departed: PVZ, PAINESVILLE, OH

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: front; flight hours: 109 total, 19 in this make and model, 49 as pilot in command, 21 in the last 90 days, 2 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 310° at 8 knots
- Lowest ceiling: none
- Temperature: 19 °F, dew point -0 °F
- Altimeter: 30.00 inHg

## 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 19851230067389A](https://openairdocs.org/incident/19851230067389A), Dec 30, 1985: Amtr MONI, Perry, OH, Destroyed. Nose pitched down after thump and vibration. Impacted snow covered ground in a flat spin. Ruddervator spar failed.

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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