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Casualties unknown

Ground Collision Between Bombardier DH-8 and Beech 1900 During Pre-Start (N449YV)

Telluride, CO, US

On July 27, 1998, a DE Havilland DH-8-202 (registration N449YV) operated by Mesa Air Group, Inc. was involved in an aviation accident near Telluride, CO. Investigators recorded the probable cause as: The chocks were too small, and the minimal weight on the nose wheel where the chocks were placed was not sufficient to ensure that the nose wheel would not roll over the chocks. 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 2026-06-10Data APIEditorial standards

During pre-start preparation, a Bombardier DH-8 aircraft jumped its nose wheel chocks and rolled backwards into a parked Beech 1900. The investigation found the chocks were too small and insufficient nose wheel weight.

Incident Overview

While parked nose-in on a 2-degree up-slope, a Bombardier DH-8 aircraft began pre-start preparation. The nose wheel chocks were in place, but the aircraft jumped the chocks and rolled backwards approximately 70 feet, striking a parked Beech 1900.

Parking Brake System

The parking brake accumulator had bled off pressure. The crew was in the process of recharging the accumulator when the aircraft moved.

Investigation Findings

The investigation revealed that the chocks used were too small. Additionally, the minimal weight on the nose wheel, where the chocks had been placed, was not sufficient to prevent the nose wheel from rolling over the chocks.

Aftermath

The collision resulted in damage to both aircraft. No further details about injuries or operational context were provided in the source.

Probable cause

The chocks were too small, and the minimal weight on the nose wheel where the chocks were placed was not sufficient to ensure that the nose wheel would not roll over the chocks.

More accident analyses

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X10601. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.