Pitts S1-SP accident near Wetumpka, Alabama, May 8, 1983
On May 8, 1983 at about 6:30 pm local time, a Pitts S1-SP, an amateur-built aircraft,, registered N44GP, was substantially damaged in an accident near Wetumpka, Alabama (Wetumpka Muni. airport). It was a flight of an unrecorded kind under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- May 8, 1983 · about 6:30 pm local time
- Place
- Wetumpka, Alabama · Wetumpka Muni. · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Pitts S1-SP, amateur-built · all S1-SPs on the register
- Registration
- N44GP · no longer on the register · serial 001
- Damage
- Substantial damage
- Flight
- Flight of an unrecorded kind · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE ACFT EXPERIENCED AN INFLT STRUCTURAL FAILURE OF ITS UPPER WING DURING AEROBATICS IN AN AIR SHOW. THE ACFT WAS LANDEDSAFELY AND THE PILOT WAS NOT INJURED. THE UPPER WING LEADING EDGE RIBS REPORTEDLY COLLAPSED AS THE PILOT BEGAN TO PULL UP AT THE BEGINNING OF AN EIGHT-SIDED LOOP AT ABOUT 200 KTS. AN FAA OBSERVER REPORTED THAT ABOUT 60% OF THE UPPER WING FABRIC THEN PEELED REARWARD AND SEPARATED. THE PILOT 'ABORTED THE SHOW' AND LANDED WITHOUT FURTHER INCIDENT. EXAMINATION BY AN FAA INSPECTOR AND THE OWNER REVEALED THAT THE LEADING EDGE OF THE UPPER WING HAD COLLAPSED REARWARD TOTHE FRONT SPAR WITH ALL NOSE RIBS BROKEN. THIS ACFT IS ONE OF TWO WITH 'KERMIT WEEKS' WINGS. THE FAILURE DESCRIBED HAS ALSO HAPPENED WITH THE OTHER ACFT. BOTH ACFT UPPER WINGS HAD BEEN CONSTRUCTED OF LIGHTER WEIGHT MATERIALS WITH EMPHASIS ON IMPROVED PERFORMANCE. SUBSEQUENT TO THIS ACCIDENT THE WING WAS REBUILT WITH STRONGER MATERIALS TO WITHSTAND HIGHER LOADS.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: airline transport pilot, flight instructor, commercial pilot
- Ratings: multi-engine land; single-engine land; instructor: airplane multi-engine; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane; rotorcraft: glider
- Flight time: 14,812 hours in all; 1,090 in this make and model; 53 in the last 90 days; 14,512 as pilot in command
- Medical certificate: Class 1 (valid medical--no waivers/lim.)
- Seat: frt
The aircraft
- Airframe total time: 385 hours
- Last inspection: annual inspection, April 1, 1983
- Maximum gross weight: 1,150 lb
- Seats: 1
- Landing gear: fixed
- Engine: Lycoming IO-360 (piston); 0 hours total
The flight
- Departed from: 08A
- Flight plan: none
- Runway 27, 3,000 ft by 80 ft
Weather at the time
- Light: daylight
- Wind: from 180° at 10 knots
- Visibility: 10 statute miles
- Sky: scat at 4,000 ft
- Temperature: 81°F (27°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Other NTSB records under N44GP the same tail number, which may have belonged to a different aircraft at the time
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.