Aviation Accident Summaries

Aviation Accident Summary ANC99LA020

ANCHORAGE, AK, USA

Aircraft #1

N6GR

Piper PA-31-350

Analysis

The certificated airline transport pilot, with five passengers, was taxiing to the operator's facility at the conclusion of an on-demand air taxi flight. The taxiway connects the main airport complex with outlying operator's facilities around the perimeter of a lake. The taxiway had private airplane tie-down lots located along its length. A snowplow equipped pickup truck was removing snow from a private airplane tie-down spot, located alongside the taxiway. The truck, operated by the owner of the tie-down spot, was equipped with a metal lumber rack in the bed of the truck. While positioning the truck, the owner backed across the taxiway, into the path of the accident airplane. A portion of the lumber rack struck the outboard end of the left wing of the airplane, damaging 3 feet of the leading edge, including several wing ribs. The airport permits limited vehicular traffic on the taxiway, primarily service vehicles and aircraft owners. It is not open for use by the general public. There are two signs located about 50 feet from the point of collision. One sign that faces south reads, 'Caution Aircraft Operation Area - Yield to all Aircraft.' A second sign that faces north reads, 'Aircraft Only - No Vehicles or Pedestrians on Taxiway.'

Factual Information

On January 5, 1999, about 1425 Alaska standard time, a Piper PA-31-350 airplane, N6GR, sustained substantial damage after being struck by a vehicle at the Anchorage International Airport, Anchorage, Alaska. The airplane was taxiing to the operator's facility after landing. The airplane was being operated as a visual flight rules (VFR) on-demand passenger flight under Title 14 CFR Part 135 when the accident occurred. The airplane was registered to, and operated by, Jim Air Inc., Anchorage. The certificated airline transport pilot, and the five passengers, were not injured. Visual meteorological conditions prevailed. VFR company flight following procedures were in effect. The flight originated at the Chenega Bay Airport, Chenega, Alaska, about 1340. The Director of Operations for the operator reported the airplane was taxiing on the Lake Shore taxiway, located along the west side of Lake Hood. A snowplow equipped pickup truck was removing snow from Lake Lot 75, a private airplane tie-down spot, located alongside the taxiway. The truck, operated by the owner of Lake Lot 75, was equipped with a metal lumber rack in the bed of the truck. While positioning the truck, the owner backed across the taxiway, into the path of the accident airplane. A portion of the lumber rack struck the outboard end of the left wing of the airplane. The airplane received damage to the outboard 3 feet of the leading edge, including several wing ribs. The Anchorage International airport permits limited vehicular traffic on Lake Shore taxiway, primarily service vehicles and aircraft owners. It is not open for use by the general public. There are two signs located about 50 feet from the point of collision. One sign that faces south reads, "Caution Aircraft Operation Area - Yield to all Aircraft." A second sign that faces north reads, "Aircraft Only - No Vehicles or Pedestrians on Taxiway."

Probable Cause and Findings

The failure of the driver of a vehicle to maintain an adequate visual lookout.

 

Source: NTSB Aviation Accident Database

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