# NTSB ATL86FLQ06: Bernard Sonerai II, N325WB, Trenton, KY, August 5, 1986

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Final report
- Date: August 4, 1986, 19:35 local (Aug 5, 1986, 00:35 UTC)
- Place: Trenton, KY
- Coordinates: 36.719577, -87.259895 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=36.7196&lon=-87.2599&mi=10
- Phase of flight: [Unknown](https://openairdocs.org/ntsb-phases/990) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 7000
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL86FLQ06
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/7000/pdf
- Page: https://openairdocs.org/ntsb/ATL86FLQ06

## Sequence of events

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

- Airframe/component/system failure/malfunction, unknown
  - wing - failure,total
  - wing - undetermined (cause)
- Loss of control - in flight, unknown
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

WITNESSES REPORTED SEEING THE ACFT SPIN TO GROUND IMPACT WITH A SECTION OF THE RIGHT WING HANGING. POST ACCIDENT EXAM REVEALED THE OUTBOARD HALF (APRX 4 FT) OF THE RIGHT WING WAS BENT APRX 120 DEGREES TO THE INSIDE HALF OF THE RIGHT WING. MONNETT EXPERIMENTAL AIRCRAFT SERVICE BULLETIN NO. 002 ADDRESSED FLIGHT ENVELOPE RESTIRCTION NECESSARY TO PREVENT INFLIGHT WING FAILURES DUE TO OVERLOADS. IT IS NOT KNOWN IF THESE RESTRICTIONS WERE ADHEARED TO. THE PREVIOUS ACFT OWNER HAD INSTALLED A 14 INCH EXTENSION ON THE WINGS PRIOR TO THIS SERVICE BULLETIN. THE EFFECT ON THE STRUCTURAL INTEGRITY BY THE ADDITION OF THE EXTENSIONS IN UNKNOWN.

## Aircraft

- Registration: [N325WB](https://openairdocs.org/deregistered/N325WB-2013-02-25), registration cancelled 2013-02-25, S/N 325, built 1978 (OpenAirDocs)
- Reported make and model: BERNARD SONERAI II
- Registry model: [Bernard SONERAI TWO](https://openairdocs.org/model/bernard-sonerai-two) (registry code 0565983) (OpenAirDocs)
- Registry engine: [Continental A&C75 series](https://openairdocs.org/engine/continental-a-c75-series) (registry code 17005, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 325
- Engines: CONTINENTAL A-75 75 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: Anthony W. Lewis
- Registered owner: James J. Moughan
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, July 10, 1985
- Departed: CKV, CLARKSVILLE, TN

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 28; private; airplane ratings: single-engine land; medical: expired; seat: front; toxicology performed; flight hours: 400 total

## Weather

- Conditions: Visual (VMC), Day
- Wind: 360° at 6 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 79 °F, dew point 57 °F
- Altimeter: 30.00 inHg
- Observed at: HOP, 15 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 19860804037239A](https://openairdocs.org/incident/19860804037239A), Aug 4, 1986: Amtrmo SONERAI2, Trenton, KY, Substantial damage. Structural failure in flight. Cause undetermined. Pilot fatally injured on impact.

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.