Fuji LM 1 and Fuji LM 2 mid-air collision near Keystone Hghts, Florida, June 29, 1991
On June 29, 1991 at about 6:25 pm local time, 2 aircraft, Fuji LM 1 (N2109L) and Fuji LM 2 (N2100J), were involved in a mid-air collision near Keystone Hghts, Florida (Keystone Airpark airport). 2 people were killed. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
FAILURE OF THE NUMBER FOUR PILOT (IN N2100J) TO MAINTAIN ADEQUATE VISUAL LOOKOUT AND/OR CLEARANCE FROM THE NUMBER THREE AIRCRAFT (N2109L).
FAILURE OF THE NUMBER FOUR PILOT (IN N2100J) TO MAINTAIN ADEQUATE VISUAL LOOKOUT AND/OR CLEARANCE FROM THE NUMBER THREE AIRCRAFT (N2109L).
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- June 29, 1991 · about 6:25 pm local time
- Place
- Keystone Hghts, Florida · Keystone Airpark · map
- Type
- Accident · mid-air collision
- Injuries
- 2 people were killed.
- Weather
- visual conditions (good weather)
- Aircraft 1
- Fuji LM 1
- Registration
- N2109L · registry record · serial 21010
- Damage
- Destroyed
- Flight
- Flight of an unrecorded kind · general aviation rules (Part 91)
- Aircraft 2
- Fuji LM 2
- Registration
- N2100J · no longer on the register · serial 21053
- Damage
- Destroyed
- Flight
- Flight of an unrecorded kind · general aviation rules (Part 91)
The NTSB's narrative for the Fuji LM 1 final · quoted from the NTSB record
THE 2 AIRCRAFT WERE PARTICIPATING AS #3 AND #4 IN A FLIGHT OF 4 FUJI AIRCRAFT, PERFORMING AERIAL DEMONSTRATIONS AS PART OF AN AIR SHOW. THE ACCIDENT OCCURRED DURING THE FIRST MANEUVER OF THE DEMONSTRATION. THE MANEUVER WAS TO HAVE BEEN TO APPROACH THE CROWD HEAD-ON IN LINE ABREAST FORMATION, FOLLOWED BY A LEFT BREAK TO A TRAIL FORMATION PARALLEL TO THE SHOW LINE. N2109L WAS FLYING IN THE #3 POSITION AND N2100J WAS FLYING IN THE #4 POSITION. THE RIGHT WING TIP OF THE #4 AIRCRAFT CONTACTED THE TOP OF THE LEFT WING OF THE #3 AIRCRAFT AND BOTH AIRCRAFT IMPACTED THE TERRAIN IN AN UNCONTROLLED DESCENT.
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 NTSB's narrative for the Fuji LM 2 final · quoted from the NTSB record
THE 2 AIRCRAFT WERE PARTICIPATING AS #3 AND #4 IN A FLIGHT OF 4 FUJI AIRCRAFT, PERFORMING AERIAL DEMONSTRATIONS AS PART OF AN AIR SHOW. THE ACCIDENT OCCURRED DURING THE FIRST MANEUVER OF THE DEMONSTRATION. THE MANEUVER WAS TO HAVE BEEN TO APPROACH THE CROWD HEAD-ON IN LINE ABREAST FORMATION, FOLLOWED BY A LEFT BREAK TO A TRAIL FORMATION PARALLEL TO THE SHOW LINE. N2109L WAS FLYING IN THE #3 POSITION AND N2100J WAS FLYING IN THE #4 POSITION. THE RIGHT WING TIP OF THE #4 AIRCRAFT CONTACTED THE TOP OF THE LEFT WING OF THE #3 AIRCRAFT AND BOTH AIRCRAFT IMPACTED THE TERRAIN IN AN UNCONTROLLED DESCENT.
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 for the Fuji LM 1 from the NTSB's investigation tables, in plain English
Pilot
- Certificate: commercial pilot
- Ratings: single-engine land; instrument: airplane
- Flight time: 5,482 hours in all
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 975 hours
- Last inspection: annual inspection, May 9, 1991; 27 hours since
- Maximum gross weight: 2,000 lb
- Seats: 4
- Landing gear: retractable
- Engine: Continental O-480-13A (piston); 0 hours total
The flight
- Flight plan: none
- Runway 4, 4,400 ft by 150 ft
Weather at the time
- Light: daylight
- Wind: from 060° at 5 knots
- Visibility: 7 statute miles
- Sky: broken clouds at 2,000 ft; not recorded
- Temperature: 86°F (30°C), dew point 73°F (23°C)
- Altimeter: 30.00 inHg
- Observation at 6:00 pm from GNV, 14 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
The factual record for the Fuji LM 2 from the NTSB's investigation tables, in plain English
Pilot
- Certificate: commercial pilot
- Ratings: multi-engine land; multi-engine sea; single-engine land; instrument: airplane
- Flight time: 10,000 hours in all
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: left
The aircraft
- Last inspection: inspection type not recorded, January 2, 2000
- Maximum gross weight: 2,000 lb
- Seats: 4
- Landing gear: retractable
- Engine: Lycoming TIO-470 (piston); 0 hours total
The flight
- Flight plan: none
- Runway 4, 4,400 ft by 150 ft
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.
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.