Beechcraft E95A N9581Y
20 September 1994 · Poplar Grove, Illinois, United States · Fatal
Summary
On 20 September 1994 at about 22:35 local time, a Beechcraft E95A registered N9581Y was involved in an accident near Poplar Grove, Illinois, United States. One person was on board and one died. The aircraft was destroyed. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 22:35
- Classification
- Accident
- Location
- Poplar Grove, Illinois, United States
- Nearest airport
- Belvidere Airport (C77)
- Coordinates
- 42.3607, -88.8205
- Aircraft
- Beechcraft E95A
- Registration
- N9581Y
- Category
- Airplane
- Engines
- 2
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- Waterloo → Wheeling
- Aircraft damage
- Destroyed
- Weather
- VMC
- Light
- Day
- NTSB number
- CHI94FA340
People
1 person died.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 1 | 0 | 0 | 0 |
Probable cause
Aircraft control not maintained by the pilot when he began his turn from base leg to final approach. Factors associated with this accident were the fatigue failure of a propeller blade, improper maintenance overhaul of the propeller, and a material defect in the propeller blade clamp screws.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
THE PILOT DECLARED AN EMERGENCY WITH ATC AFTER EXPERIENCING WHAT HE BELIEVED WAS A LEFT ENGINE FAILURE. THE CONTROLLER GUIDED THE PILOT TO A NON-CONTROLLED AIRPORT FOR A LANDING. WITNESSES AT THE AIRPORT REPORTED SEEING THE AIRPLANE ENTER DOWNWIND FOR THE SOUTHEAST RUNWAY. THEY SAID THE AIRPLANE BEGAN A TURN FROM BASE LEG TO FINAL APPROACH. DURING THE TURN, THE AIRPLANE ENTERED A SPIN AND COLLIDED WITH THE GROUND. THE ON-SCENE INVESTIGATION REVEALED THAT ONE BLADE OF THE LEFT ENGINE PROPELLER BLADE HAD SEPARATED FROM THE ASSEMBLY. FURTHER EXAMINATION REVEALED THE SEPARATION WAS INITIATED BY A FATIGUE FRACTURE NEXT TO THE BLADE'S INNER CLAMP. TWO OF THE CLAMP SCREWS HAD FAILED DUE TO FATIGUE OVERLOAD. THE INNER CLAMP HAD BEEN ASSEMBLED WITH SCREWS THAT THE PROPELLER MANUFACTURER'S SERVICE BULLETIN SAID HAD TO BE CHANGED TO A DIFFERENT TYPE.
Quoted verbatim from the NTSB record.
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 16 Jul 1994 | Piper PA-28-140 | Kankakee, Illinois, United States | Koerner Aviation, Inc. | Minor injuries | - |
| 17 Jul 1994 | Cessna 150 | Alton, Illinois, United States | - | No injuries | - |
| 19 Apr 1994 | Remote Sensing CIRRUS VK-30 | Lk In the Hills, Illinois, United States | - | Fatal | 2 |
| 22 Jul 1994 | Cessna 175 | Cottage Hill, Illinois, United States | - | Serious injuries | - |
| 15 Jul 1994 | Piper PA-22 | Harvard, Illinois, United States | Edwin D. Swart | No injuries | - |
| 5 Jul 1994 | Hucke Ronald L PARSON-2P | Monmouth, Illinois, United States | - | Minor injuries | - |