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Accidents · NTSB CEN11LA374 · Final report

Amateur-built SEAREY accident near Minneapolis, Minnesota, June 4, 2011

On June 4, 2011 at about 11:37 pm local time, a amateur-built SEAREY, registered N242RM, was substantially damaged in an accident during initial climb near Minneapolis, Minnesota (Crystal Airport). It was a personal flight under general aviation rules (Part 91). 2 people were seriously injured. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot's failure to maintain adequate airspeed during takeoff, which resulted in an inadvertent stall. Contributing to the accident was the degraded engine performance due to the improper servicing and maintenance of the fuel system.

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

What the record shows

Date
June 4, 2011 · about 11:37 pm local time
Place
Minneapolis, Minnesota · Crystal Airport · map
Type
Accident
Injuries
2 people were seriously injured.
Weather
visual conditions (good weather)
Aircraft
Amateur-built SEAREY
Registration
N242RM · no longer on the register · serial 1MK369C
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

According to an air traffic controller, shortly after takeoff, approximately 50 to 100 feet above ground level, the pilot contacted the tower controller and stated "...we're gonna," and the transmission ended. The tower controller said that when the airplane reached the departure end of the runway, the airplane entered a left bank and impacted terrain. The airplane came to rest inverted, adjacent to the runway. A postaccident examination of the airplane revealed that the engine's fuel system contained brownish fluid, consistent with old and dirty automotive fuel. The pilot stated that he did not service the airplane with fuel prior to takeoff and that the airplane hadn’t been flown in at least 6 months. A postaccident examination revealed that the fuel system hoses were cracked and degraded, and one fuel line was improperly modified. Further, a conditional inspection of the airplane had not been completed in the previous 3 years. The engine was test run postaccident with fresh automotive fuel, and it ran normally for about 5 minutes at various power settings. Based on the tower controller's description of the accident sequence, it is likely the airplane entered an aerodynamic stall shortly after takeoff. It is also likely that the improper servicing and maintenance of the fuel system could have contributed to degraded engine performance.

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. Loss of engine power (partial) during initial climb defining event
  2. Collision with terrain or object (not controlled flight into terrain) during emergency descent

The NTSB's findings

  • Aircraft › Aircraft systems › Fuel system › (general) › Damaged/degraded
  • Aircraft › Fluids/misc hardware › Fluids › Fuel › Fluid condition
  • factor Aircraft › Fluids/misc hardware › Fluids › Fuel › Not serviced/maintained
  • factor Personnel issues › Task performance › Maintenance › Scheduled/routine maintenance › Pilot
  • cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Airspeed › Not attained/maintained

Pilot

  • Certificate: flight instructor, commercial pilot
  • Ratings: multi-engine land; single-engine land; single-engine sea; instructor: airplane single-engine; instrument: airplane
  • Flight time: 3,800 hours in all; 100 in this make and model
  • Last flight review: December 2, 2010
  • Medical certificate: Class 3
  • Seat: left
  • Injury: serious injuries

The aircraft

  • Airframe total time: 94 hours
  • Last inspection: condition inspection, May 3, 2008
  • Maximum gross weight: 1,370 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Rotax 912ULS-2 (piston); 0 hours total

The flight

  • Departed from: MIC Minneapolis MN at 11:35 pm
  • Destination: MIC Minneapolis MN
  • Flight plan: none
  • Runway 32R, 3,263 ft by 75 ft

Weather at the time

  • Light: daylight
  • Wind: from 300° at 13 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 79°F (26°C), dew point 48°F (9°C)
  • Altimeter: 30.10 inHg
  • Observation at 11:35 pm from MIC

Injuries

FatalSeriousMinorNone
Flight crew1
Passengers1

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.