Beechcraft B200 King Air, N699BW, and a Cessna 172S Skyhawk SP, N529ND, mid-air collision occurred on April 11, 2026, near Florida Keys Marathon International Airport (MTH/KMTH), Marathon, Florida

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed.

https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=N699BW

https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=N529ND

- History of Flight:
On April 11, 2026, at about 1328 local time, a Beechcraft B200 King Air, N699BW, registered to Beech Transport LLC out of Tarboro, North Carolina, and a Cessna 172S Skyhawk SP, N529ND, registered to Phoenix East Aviation LLC, both sustained unknown damage following a mid-air collision in the vicinity of the Florida Keys Marathon International Airport (MTH/KMTH), Marathon, Florida. The pilot and five passengers onboard the King Air and the flight instructor and student pilot onboard the Skyhawk were not injured. The King Air was being operated a personal flight from Marsh Harbour-Leonard M. Thompson International Airport (MHH/MYAM), Bahamas, and the Cessna was being operated on a Part 91 instructional flight from Key West International Airport (EYW/KEYW), Key West, Florida.

According to preliminary automatic dependent surveillance-broadcast (ADS-B) data, the Cessna departed KEYW and entered a climbing right turn to an altitude of 5,100 ft, around the same time, the King Air was cruising at 20,000 ft and heading towards KMTH.

At 1327:13, the King Air was descending through 7,800 ft at 260 knots (groundspeed) while the Cessna was 5,100 ft traveling about 110 knots GS.

Figure 1: Aircraft Positions at 1317:13

At 1328:00, the King Air was descending through 6,100 ft at 265 knots (groundspeed) while the Cessna was climbing through 5,375 ft at 95 knots GS.

Figure 2: Aircraft Positions at 1328:00

At 1328:12, the King Air was descending through 5,625 ft at 258 knots (groundspeed) while the Cessna was climbing through 5,475 ft at 89 knots GS. The collision occurred within the next three seconds.

Figure 3: Aircraft Positions at 1328:12

Figure 4: Aircraft Positions at 1328:15, presumably after collision

Following the collision, the Cessna stopped its climb and entered a descending left hand turn, at the same time, the King Air continued its descent towards KMTH.

At about 1333:22, the Cessna landed on runway 25 at KMTH while the King Air began a base-to-final turn for runway 7. At 1338, the King Air landed on runway 7. Both airplanes taxied to the ramp on their own.

The FAA reported that:

"Aircraft suffered a mid-air collision with N529ND damaging the left wing." and

"Aircraft suffered a mid-air collision with N699BW damaging left wing."

At the time of this writing, the mid-air collision was not covered by any media sources.

Below are additional figures showing both tracks aligned on Google Earth Pro.