- Date
- July 11, 1988, 17:30 local (22:30 UTC)
- Place
- Rio, WI
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Approach
- Aircraft
- N77LGGriffin Pitts S-1S
- Weather
- Visual (VMC) · Day
- Status
- Completed · report July 10, 1989
- Report
- Approved by Office Director
- FAA report
- 19880711026239A
- Case key
- 13877
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.
Analysis
When the pilot of the amateur built biplane initiated a go-around from a VFR approach, he found that he had no response to throttle application. He then executed an intentional forced landing in an adjacent field. During this landing the aircraft collapsed a main landing gear and nosed over. Post acc invest revealed that the throttle linkage was broken.
Aircraft
- Registration
- N77LG
- Reported as
- Griffin Pitts S-1S
- Category
- Airplane, amateur-built
- Serial number
- 451 H
- Airframe hours
- 42
- Engine
- Lycoming O-360-B1A, 160 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Jon Lee Bedessem
- Registered owner
- Laverne H Griffin
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Annual · July 24, 1987 · 7 hours before
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 33
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, Valid Medical--no waivers/lim.
- Seat
- Front
- Flight hours
- 174 total · 8 in this make and model · 130 as pilot in command · 7 in the last 90 days · 2 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 300° at 7 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 75 °F, dew point 52 °F
- Altimeter
- 29.00 inHg
- Observed at
- MSN, 22 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.