Helio H-250 accident near Six Mile Lake, Alaska, June 2, 1990
On June 2, 1990 at about 4:30 am local time, a Helio H-250, registered N528LM, was substantially damaged in an accident near Six Mile Lake, Alaska (Pvt Strip airport). It was a business flight under general aviation rules (Part 91). No one was hurt; 3 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 FLARE, WHICH RESULTED IN A HARD LANDING. THE PILOT'S LACK OF EXPERIENCE IN THE MAKE AND MODEL OF AIRCRAFT WAS A RELATED FACTOR.
Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- June 2, 1990 · about 4:30 am local time · cases in 1990
- Place
- Six Mile Lake, Alaska · Pvt Strip
- Type
- Accident
- Injuries
- No one was hurt; 3 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Helio H-250 · all H-250s on the register
- Registration
- N528LM · registry record
- Damage
- Substantial damage
- Flight
- Business flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PLT RPRTD THAT DURING AN APCH TO LAND AT A REMOTE STRIP, THE ACFT SLOWED & 'GOT BEHIND THE POWER CURVE.' SUBSEQUENTLY, IT HIT THE GROUND, WHICH BUCKLED THE FUSELAGE. THE PLT HAD ABOUT 10,000 HRS OF FLT TIME, BUT ONLY 20 HOURS IN HELIOCOURIER.
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: commercial pilot
- Ratings: single-engine land; single-engine sea; instrument: airplane
- Flight time: 10,000 hours in all; 20 in this make and model
- Medical certificate: Unknown
- Seat: unk
The aircraft
- Last inspection: inspection type not recorded; 0 hours since
- Maximum gross weight: 3,400 lb
- Seats: 4
- Landing gear: fixed
- Engine: Lycoming O-540 (piston); 0 hours total
The flight
- Departed from: Z41 Anchorage AK at 9:30 pm
- Flight plan: VFR
- Runway 0
Weather at the time
- Light: daylight
- Sky: not recorded; not recorded
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 2 |
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.
Connections how this case links to the rest of the register
- N528LM on the register today · the tail number may have moved to another aircraft since
- Helio H-250 11 registered today · the model family and its accident history
- Helio 120 aircraft on the register
- Engine: Lycoming O-540 5,245 aircraft carry this series today · as the NTSB recorded it
- Accidents and incidents in Alaska 5,932 since 1982 · 823 in the last ten years
- Alaska 9,144 aircraft registered
The whole map of how records connect · these connections as data: /graph/accident/ANC90LA083.json.
The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.
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 does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.