- Date
- August 18, 1985, 11:30 local (18:30 UTC)
- Place
- Byron, CA
- Injuries
- 1 uninjured
- Damage
- Destroyed
- Phase of flight
- Other
- Aircraft
- N97MSMike Stone Moni
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19850818076119A
- Case key
- 24804
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Airframe/component/system failure/malfunction
Flight control surfaces/attachments - flutterCause
Reason for occurrence undeterminedCause
Loss of control - in flight
In flight collision with object
Analysis
While on the initial test flt, the amatuer-built r. m. stone moni acft crashed near Byron, CA. The plt reported that during the flight the acft began to 'flutter', followed by separation of the canopy. Shortly thereafter the acft entered into an uncontrollable spin. The plt exited the acftand parachuted safely. The acft was not recovered.
Aircraft
- Registration
- N97MS
- Reported as
- Mike Stone Moni
- Category
- Airplane, amateur-built
- Engine
- Unknown UNKNOWN, reciprocating
- Damage
- Destroyed
- Flight
- Other work use · Part 91
- Registered owner
- Robert Mike Stone
- Airworthiness certificate
- Special, Experimental (Special)
- Departed
- LVK · Livermore, CA
- Airport
- CCR · Concord
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Unknown, Unknown
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 330° at 8 knots
- Visibility
- 20 statute miles
- Lowest ceiling
- None
- Altimeter
- 30.00 inHg
- Observed at
- LVK, 20 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.