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Accidents · NTSB ANC06LA072 · Final report

Helio H-250 accident near Anchorage, Alaska, May 20, 2006

On May 20, 2006 at about 2:30 am local time, a Helio H-250, registered N6324V, was substantially damaged in an accident near Anchorage, Alaska (Little Su Lodge airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot's improper use of the carburetor heat control during takeoff, which resulted in a partial loss of engine power, a hard landing, and an on ground encounter with terrain. A factor contributing to the accident was an inadvertent ground loop.

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

What the record shows

Date
May 20, 2006 · about 2:30 am local time
Place
Anchorage, Alaska · Little Su Lodge · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Helio H-250 · all H-250s on the register
Registration
N6324V · registry record · serial 2538
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

The private certificated pilot was departing a grass surface runway on a Title 14, CFR Part 91 personal flight. The runway was about 3,000 feet long, and about 150 feet wide. The pilot said that during the takeoff run, the engine did not seem to be producing full power. The airplane lifted off to about 10 feet above ground level, but the pilot decided to abort the takeoff and pulled the throttle to idle. The airplane landed hard and began to veer to the left. The pilot said the airplane ground looped to the left, departed off the left side of the runway, and collided with alder bushes. The airplane received structural damage to the right main landing gear, and the left wing and left aileron. The pilot reported that the airplane engine did not have any mechanical malfunction. He said that after the accident, he discovered that the carburetor heat control was in the "on" position.

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

Pilot

  • Certificate: private
  • Ratings: single-engine land; instrument: airplane
  • Flight time: 3,400 hours in all
  • Medical certificate: Class 3 (with waivers/limitations)
  • Seat: left
  • Injury: no injuries

The aircraft

  • Last inspection: inspection type not recorded
  • Maximum gross weight: 3,400 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Lycoming O-540 (piston); 0 hours total

The flight

  • Departed from: Anchorage AK at 9:30 pm
  • Destination: PAMR Anchorage AK
  • Flight plan: none
  • Runway 18, 3,000 ft by 150 ft

Weather at the time

  • Light: daylight
  • Wind: from 180° at 10 knots
  • Visibility: 10 statute miles
  • Sky: scat at 10,000 ft
  • Temperature: 55°F (13°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
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.

Other NTSB records under N6324V the same tail number, which may have belonged to a different aircraft at the time

2016-09-26ANC16LA072 · accident near Anchorage, AK · substantial damage · no injuries

About this page

Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number ANC06LA072.