Casualties unknown

1997-07-21: DE Havilland DHC-6-300 (N776BF) — Elko, NV

Elko, NV, US

On July 21, 1997, a DE Havilland DHC-6-300 (registration N776BF) was involved in an aviation accident near Elko, NV. Investigators recorded the probable cause as: The failure of maintenance personnel to correctly diagnose and correct a reoccurring nose gear steering problem, and the improperly tensioned nose wheel steering actuator cables which provided the pilot with an erroneous cockpit indication that the nose gear… 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 1781061362Data APIEditorial standards

During landing, an aircraft veered left, struck a runway light, and collapsed the nose gear. Examination revealed under-tensioned nose gear steering cables and a history of nose gear difficulties.

Incident Summary

Before departing from Reno, the aircraft underwent a ramp check by the FAA with no discrepancies noted. The flight was crewed by a private pilot and an airline transport pilot. The private pilot was responsible for landing, while the airline transport pilot was responsible for completing the before-landing checklist, which included checking the position of the nose wheel steering tiller.

Landing and Sequence of Events

Upon touchdown, the aircraft veered left of the runway centerline. The private pilot attempted to correct by applying brakes with right rudder input. The aircraft slowed but continued to veer left. The propellers were placed into beta mode, but the aircraft continued to the left, departing the runway, striking a light, and collapsing the nose gear.

Post-Incident Examination

Witnesses reported seeing a cloud of smoke emanating from the nose gear upon landing. Signature marks found at the initial touchdown point on the runway were consistent with the nose gear not being in the centered position. The aircraft traveled approximately 200 to 300 feet before veering left of centerline. No discrepancies were noted with the aircraft's braking system. Examination of the nose gear steering cables revealed that the cables were significantly under tensioned.

Maintenance History

After repairs, the airline transport pilot ferried the aircraft to an airport in California, with no discrepancies noted during that flight. A report submitted by the owner of the aircraft indicated nose gear difficulties dating back to August 1992. The report further stated that if the actuator cables were improperly tensioned, the tiller could visually indicate a horizontal position without the nose wheel being centered.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X08436. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.