# NTSB ANC90LA083: Helio H-250, N528LM, Six Mile Lake, AK, June 2, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: June 1, 1990, 20:30 local (Jun 2, 1990, 04:30 UTC)
- Place: Six Mile Lake, AK
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report September 30, 1991
- Report: Approved by Office Director
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5376
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC90LA083
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5376/pdf
- Page: https://openairdocs.org/ntsb/ANC90LA083

## Probable cause

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.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Hard landing, landing - flare/touchdown
  - flare - improper, pilot in command (cause)
  - lack of total experience in type of aircraft, pilot in command (contributing factor)

## Analysis

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.

## Aircraft

- Registration: [N528LM](https://openairdocs.org/aircraft/N528LM), registered now, S/N 2541 (OpenAirDocs)
- Reported make and model: Helio H-250
- Registry model: [Helio H-250](https://openairdocs.org/model/helio-h-250) (registry code 4300302) (OpenAirDocs)
- Category: Airplane
- Engines: LYCOMING O-540 250 horsepower reciprocating
- Damage: Substantial damage
- Flight: Business, Part 91
- Operator: Gay, Kirk D
- Registered owner: Unknown
- Departed: Z41, ANCHORAGE, AK
- Flight plan: VFR
- Airport: NONE, Pvt Strip

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; commercial; airplane ratings: single-engine land, single-engine sea; instrument ratings: airplane; medical: unknown, unknown; flight hours: 10,000 total, 20 in this make and model

## Weather

- Conditions: Visual (VMC), Day

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19900601018009A](https://openairdocs.org/incident/19900601018009A), Jun 1, 1990: Helio H250, Six Mile Lake, AK, Substantial damage. Allowed aircraft to get too slow on final for Private strip. Stalled and crashed short of strip.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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