Donald L Hedeman SONERAI-II N4FD
27 April 1991 · Jacksonville, Florida, United States · Fatal
Summary
On 27 April 1991 at about 16:42 local time, a Donald L Hedeman SONERAI-II registered N4FD, operated by Millhof, Gerald N., was involved in an accident near Jacksonville, Florida, United States. One person was on board and one died. 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 16:42
- Classification
- Accident
- Location
- Jacksonville, Florida, United States
- Nearest airport
- Craig Municipal (CRG)
- Coordinates
- 30.3591, -81.5103
- Aircraft
- Donald L Hedeman SONERAI-II
- Registration
- N4FD
- Category
- Airplane
- Engines
- 1
- Operator
- Millhof, Gerald N.
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- MIA91LA128
People
1 person died.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 1 | 0 | 0 | 0 |
Probable cause
THE PILOT'S IMPROPER ADJUSTMENT OF THE CARBURETOR.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
WITNESSES STATED ENG DID NOT SOUND AS IF IT WAS PRODUCING FULL POWER ON TAKEOFF. SHORTLY AFTER TAKEOFF THE ENG QUIT. AS THE PLT ATTEMPTED A FORCED LANDING ON AN ALLEY THE ACFT TOUCHED DOWN HARD IN A RIGHT SLIP. THE ACFT THEN BOUNCED INTO THE AIR, TRAVELED 80 FEET, COLLIDED WITH A TELEPHONE POLE, AND CAME TO REST. AFTER THE ACCIDENT A LARGE AMOUNT OF AUTOMOTIVE FUEL LEAKED FROM THE RUPTURED FUEL TANK AND LINES. EXAM OF THE ENG AFTER THE ACCIDENT REVEALED THE SPARK PLUGS, PISTONS, AND CYLINDERS HAD EXCESSIVE BLACK SOOT DEPOSITS. THE CARB IDLE ADJUSTING SCREW WAS STRIPPED AND THE MIXTURE CONTROL SCREW HAD RECENT TOOLING MARKS ON IT. WITNESSES STATED THAT THE ENGINE HAD BEEN OPERATING WITH A RICH FUEL MIXTURE AND THAT THE PILOT HAD BEEN ATTEMPTING TO ADJUST IT TO THE PROPER SETTING.
Quoted verbatim from the NTSB record.
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 2 Jan 1991 | Hughes 269C | Deland, Florida, United States | Maverick Helicopters, Inc. | No injuries | - |
| 9 Jan 1991 | Cessna 182N | La Belle, Florida, United States | Smith, Gregory H. | Serious injuries | - |
| 11 Jan 1991 | Cessna 175 | Okeechobee, Florida, United States | Davia, Samuel J. JR. | No injuries | - |
| 16 Jan 1991 | Cessna 172N | New Smyrna Bch, Florida, United States | Embry-Riddle Aero. Univ., Inc. | No injuries | - |
| 17 Jan 1991 | Cessna 152 | Miami, Florida, United States | Silver Express, Inc. | No injuries | - |
| 19 Jan 1991 | Piper PA-31-350 | Orlando, Florida, United States | Top Flight Air Service, Inc. | No injuries | - |