Casualties unknown

1997-07-23: DE Havilland DHC-6-200 (N491AL) — Skys The Limit — Sussex, NJ

Sussex, NJ, US

On July 23, 1997, a DE Havilland DHC-6-200 (registration N491AL) operated by Skys The Limit was involved in an aviation accident near Sussex, NJ. Investigators recorded the probable cause as: the pilot's improper management of the fuel supply. A related factor was the inoperative low fuel quantity light for the rear tank. 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 a 15-minute positioning flight, both engines lost power about 4 miles from destination. The pilot performed an emergency landing in a field, striking trees. Investigation revealed fuel quantity discrepancies and an inoperative low fuel warning light.

Incident Overview

A pilot conducting a 15-minute positioning flight experienced a loss of power in both engines approximately 4 miles from the intended destination. The pilot executed a forced landing in an open field, during which the airplane struck trees.

Pilot Report

The pilot stated that the aircraft departed with approximately 800 pounds of fuel on board. At the time of the power loss, the fuel gauges indicated about 300 pounds of fuel remaining.

Examination Findings

Post-incident examination revealed that the forward fuel tank contained over 200 pounds of fuel, while the rear tank indicated only 30 pounds. Both boost pumps were found to be operative. However, when the rear tank boost pump was activated, the low fuel pressure light remained illuminated. In contrast, activation of the forward tank boost pump extinguished the low fuel pressure light.

Additionally, the low fuel quantity light for the aft tank was discovered to be inoperative. This light was designed to illuminate when the fuel level dropped to approximately 100 pounds. The malfunction was traced to a corroded wire connection, which prevented the warning system from functioning as intended.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X08493. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.