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Right Main Landing Gear Collapse During Landing Roll at Remote Site (N42DC)

Mt. Deborah, AK, US

On August 15, 1993, a Helio H-295 (registration N42DC) operated by Bursiel, Robert P. was involved in an aviation accident near Mt. Deborah, AK. No fatalities were reported. Investigators recorded the probable cause as: FAILURE OF THE RIGHT MAIN LANDING GEAR LEG DUE TO THE IMPROPER MAJOR REPAIR PERFORMED ON THE GEAR LEG BY SOME UNKNOWN MAINTENANCE PERSON(S). This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

During the landing roll at a remote site, the right main landing gear collapsed, causing the right wing to drag. Examination revealed a weld failure due to an undocumented repair and improper heat treatment.

Incident Details

The landing gear collapse took place during the landing roll at a remote airstrip. The right main landing gear gave way, causing the right wing to come into contact with the runway surface and drag.

Investigation

An investigation into the failure focused on the right main landing gear leg, part number 250 040 451 1. The leg was found to have fractured at the upper weld. Investigators discovered evidence of a previous repair that had not been documented. Additionally, metallurgical testing revealed that the gear leg metal had undergone improper heat treatment following the repair.

Summary of Findings

  • The right main landing gear leg failed at the upper weld.
  • An undocumented repair was present at the failure location.
  • The metal of the gear leg had been improperly heat treated after the repair.
Maintenance error

Frequently asked questions

What happened in the 15 Aug 1993 Helio H-295 accident near Mt. Deborah, AK?

During the landing roll at a remote site, the right main landing gear collapsed, causing the right wing to drag. Examination revealed a weld failure due to an undocumented repair and improper heat treatment.

Were there any fatalities in the 15 Aug 1993 Helio H-295 accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 15 Aug 1993 involved a Helio H-295, registration N42DC, operated by Bursiel, Robert P., at Mt. Deborah, AK.

What was the probable cause of the accident?

FAILURE OF THE RIGHT MAIN LANDING GEAR LEG DUE TO THE IMPROPER MAJOR REPAIR PERFORMED ON THE GEAR LEG BY SOME UNKNOWN MAINTENANCE PERSON(S).

More accident analyses

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X13040. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.