- Date
- July 3, 1982, 20:00 local (Jul 4, 1982, 01:00 UTC)
- Place
- Popular Grove, IL
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N39714Waco UPF-7
- Weather
- Visual (VMC) · Day
- Status
- Completed · report July 3, 1983
- Report
- Approved by Office Director
- FAA report
- 19820703028499A
- Case key
- 72283
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
The pilot experienced severe engine vibration during cruise flight. The pilot performed an emergency landing in a field. Because of the length of the field the pilot landed hard and the left main gear collapsed. The separated gear struck and fractured the left wing spar. Investigation revealed the engine vibration was induced by the separation of six inches of the blade tip of the aluminum constructed curtis-reed propeller.
Aircraft
- Registration
- N39714
- Reported as
- Waco UPF-7
- Category
- Airplane
- Serial number
- 5847
- Airframe hours
- 26,518
- Engine
- Continental W-6706A, 220 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- William C. Thomas
- Registered owner
- Richard Thomas
- Departed
- Belvidere, IL
- Destination
- Belvidere, IL
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
- 28
- Certificate
- Private
- Airplane ratings
- Single-engine sea, Single-engine land
- Medical
- Class 3, Valid Medical--no waivers/lim.
- Flight hours
- 774 total · 39 in this make and model · 703 as pilot in command · 52 in the last 90 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 180° at 4 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- 25,000 ft broken
- Temperature
- 172 °F
- Altimeter
- 29.00 inHg
- Observed at
- RFD, 25 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.
Other investigations on N39714 · 2
Matched to the same aircraft by N-number and date.