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Accidents · NTSB ERA13LA171 · Final report

Amateur-built AEROLITE 103 accident near Immokalee, Florida, March 16, 2013

On March 16, 2013 at about 2:00 pm local time, a amateur-built AEROLITE 103, registered N2549W, was substantially damaged in an accident during approach near Immokalee, Florida (Immokalee Regional Airport). It was a personal flight under general aviation rules (Part 91). 1 person was seriously injured. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The loss of engine power due to the seizure of the magneto piston.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
March 16, 2013 · about 2:00 pm local time
Place
Immokalee, Florida · Immokalee Regional Airport · map
Type
Accident
Injuries
1 person was seriously injured.
Weather
visual conditions (good weather)
Aircraft
Amateur-built AEROLITE 103
Registration
N2549W · registry record · serial 411
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

According to the pilot, he was descending the airplane from 3,000 to 1,000 ft above ground level toward his destination airport. After he leveled off the airplane, he encountered heavy turbulence and a strong wind gust. The airplane began to descend, and, in an attempt to climb, the pilot added power. However, the airplane did not climb, and a wind gust rolled the airplane right. He subsequently lost control of the airplane, and it collided with trees. Although the pilot did not report that the engine lost power, an examination of the engine revealed evidence of seizure marks on the intake and exhaust side of the magneto cylinder walls; the magneto piston's seizure likely led to the loss of engine power and contributed to the airplane's inability to climb.

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 from the NTSB's investigation tables, in plain English

What happened, in order

  1. Turbulence encounter during approach
  2. Loss of engine power (partial) during approach defining event
  3. Loss of control in flight during approach
  4. Collision with terrain or object (not controlled flight into terrain) during uncontrolled descent

The NTSB's findings

  • cause Aircraft › Aircraft power plant › Engine (reciprocating) › Recip eng cyl section › Damaged/degraded
  • cause Not determined › Not determined › (general) › (general) › Unknown/Not determined

Pilot

  • Certificate: private
  • Ratings: single-engine land
  • Flight time: 160 hours in all; 160 in this make and model
  • Medical certificate: Class 3 (without waivers/limitations)
  • Seat: sngl
  • Injury: serious injuries

The aircraft

  • Last inspection: inspection type not recorded
  • Maximum gross weight: 325 lb
  • Seats: 1
  • Landing gear: fixed
  • Engine: Rotax 503 (piston); 28 hours total

The flight

  • Departed from: IMM Immokalee FL at 1:00 pm
  • Destination: IMM Immokalee FL
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Wind: from 170° at 6 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 64°F (18°C), dew point 52°F (11°C)
  • Altimeter: 30.20 inHg
  • Observation at 1:53 pm from RSW, 20 miles away

Injuries

FatalSeriousMinorNone
Flight crew1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

13 documents, released by the NTSB on March 31, 2015. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.

The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.

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.