- Date
- September 10, 1983, 16:00 local (21:00 UTC)
- Place
- Manvel, TX
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N2050Clarks Pitt Special S1S
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Case key
- 21064
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
Wing,wing rib - failure,partialCause
Aerobatics - performedCause
Analysis
The acft buffetted abnormally during an aerobatic maneuver so the plt relaxed the 'g' loading on the airframe. The plt noted a concave deformity in the bottom of the left upper wing. Level flt was achieved to test the flt characteristics of the acft. Flt control seemed 'nearly normal' so a normal landing was made. Post landing investigation revealed six broken ribs in the left upper wing.
Aircraft
- Registration
- N2050
- Reported as
- Clarks Pitt Special S1S
- Category
- Airplane, amateur-built
- Serial number
- 1001
- Airframe hours
- 732
- Engine
- Lycoming IO-360, 200 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- D.J. Rihn
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Annual · June 1, 1983 · 70 hours before
- Airport
- 3TA1 · Wolfe
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 54
- Certificate
- Commercial
- Airplane ratings
- Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Front
- Flight hours
- 7,200 total · 600 in this make and model · 7,000 as pilot in command · 115 in the last 90 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 81 °F