McKibben GN-1 AIRCAMPER N823GM
12 December 1995 · Mayhew, Mississippi, United States · No injuries
Summary
On 12 December 1995 at about 22:25 local time, a McKibben GN-1 AIRCAMPER registered N823GM was involved in an accident near Mayhew, Mississippi, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 22:25
- Classification
- Accident
- Location
- Mayhew, Mississippi, United States
- Nearest airport
- Oktibbeha (M51)
- Coordinates
- Not recorded
- Aircraft
- McKibben GN-1 AIRCAMPER
- Registration
- N823GM
- Category
- Airplane
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- MIA96LA041
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
Probable cause
The pilot's improper planning/decision, and failure to verify the airplane's performance data. The airplane's lack of climb capability with the newly manufactured propeller was a related factor.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
The pilot had manufactured a new propeller for his airplane. Before taking off on the first flight after certification, he performed taxi and runup tests on the engine and airplane. After takeoff, the airplane did not climb very fast and reached an altitude of only about 50 feet. After realizing that the airplane was not performing as expected, he attempted to stay over a clear field. To do this, he had to make a shallow turn, and the airplane started to descend. The airplane then struck trees at approximately 3,500 feet from the departure end of the runway. A postaccident investigation revealed no evidence of mechanical failure of the engine. When questioned, the pilot said that he expected the new propeller to produce 110 horsepower at 4500 rpm or 65 horsepower at 3000 rpm. However, during takeoff, the rpm only reached about 2600 rpm.
Quoted verbatim from the NTSB record.
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 23 Feb 1995 | Mooney M20E | McLain, Mississippi, United States | - | No injuries | - |
| 6 Mar 1995 | Grumman G-164B | Crystal Springs, Mississippi, United States | - | No injuries | - |
| 18 Mar 1995 | Cessna 150K | Hattiesburg, Mississippi, United States | - | No injuries | - |
| 7 Apr 1995 | Cessna 152 | Laurel, Mississippi, United States | Stringer Aviation, Inc. | No injuries | - |
| 13 Sep 1995 | Air Tractor 502B | Minter City, Mississippi, United States | - | No injuries | - |
| 16 Apr 1995 | Cessna 172H | Hattiesburg, Mississippi, United States | Hall, Terry G. | No injuries | - |