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Near Midair Collision at St. Pete-Clearwater International Airport (N370SD)

St Petersburg-Clearwater, FL, United States

On April 29, 2021, an AIRBUS A319-112 (registration N370SD) operated by Allegiant Travel Company was involved in an aviation accident near St Petersburg-Clearwater, FL. No fatalities were reported. Investigators recorded the probable cause as: The air traffic controller’s failure to properly scan the runway and local area, and their general loss of situational awareness, resulting in a near midair collision. This summary draws on records from NTSB; 10 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-09-03Data APIEditorial standards
AIRBUS A319-112
Photo: Rodrigo Flores / CC BY 3.0, via Wikimedia Commons

On April 29, 2021, a near midair collision occurred at St. Pete-Clearwater International Airport (PIE) when AAY803 took evasive action to avoid N370SD. No injuries or damage were reported.

Incident Overview and Context On April 29, 2021, at approximately 1507 Eastern Daylight Time, a near midair collision occurred at St. Pete-Clearwater International Airport (PIE) in St. Petersburg-Clearwater, Florida. The incident involved flight AAY803, operating under Title 14 Code of Federal Regulations (CFR) Part 121, and aircraft N370SD, operating under Title 14 CFR Part 91. AAY803 was on initial climb from runway 18 when it took evasive action to avoid N370SD, which was crossing over the runway about midfield while on a right downwind for runway 22. Daytime visual meteorological conditions prevailed, and no injuries or aircraft damage were reported.

Contributing factors

ATC personnelPilot

Related events

Same aircraft family

  • 9 Sep 2019 — Airbus A319-112 (Eurowings)
  • 12 Oct 2018 — Airbus A319-112 (Frontier Airlines)
  • 14 Jan 2016 — Airbus A319-112 (Air Namibia)
  • 16 Dec 2015 — Airbus A319-112 (Air India)
  • 23 Nov 2015 — Airbus A319-112 (American Airlines)
  • 14 Apr 2014 — Airbus A319-112 (Myanmar Airways International)
  • 10 May 2012 — Airbus A319-112 (Frontier Airlines)
  • 10 May 2012 — AIRBUS A319-112 (Frontier Airlines INC)
  • 16 Oct 2003 — Airbus A319-112 (US Airways)
  • 2 Jun 2003 — Airbus A319-112 (Frontier Airlines)

More Airbus A319 safety records →

Frequently asked questions

What happened in the 29 Apr 2021 AIRBUS A319-112 accident near St Petersburg-Clearwater, FL?

On April 29, 2021, a near midair collision occurred at St. Pete-Clearwater International Airport (PIE) when AAY803 took evasive action to avoid N370SD. No injuries or damage were reported.

Were there any fatalities in the 29 Apr 2021 AIRBUS A319-112 accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 29 Apr 2021 involved an AIRBUS A319-112, registration N370SD, operated by Allegiant Travel Company, at St Petersburg-Clearwater, FL.

What was the probable cause of the accident?

The air traffic controller’s failure to properly scan the runway and local area, and their general loss of situational awareness, resulting in a near midair collision. Contributing to the incident was the Cessna 337 pilot's poor decision making when he failed to fly the standard downwind leg distance from the runway…

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