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Accident: Airbus AS350 B2

Mar 13, 2015 · Anchorage, AK

NTSB numberANC15LA015Event id20150313X75813

0
Fatalities
0
Serious injuries
0
Minor injuries
3
Uninjured

Probable cause

The failure of the ball bearing within the pitch change spider assembly due to its operation with no grease within the bearing, which resulted in the subsequent fracture of the spider assembly and a loss of tail rotor control authority. Also causal to the accident were the overhaul facility’s failure to follow the helicopter manufacturer’s spider assembly overhaul procedures, which resulted in the assembly leaving the facility with no grease in the bearing, and the mechanic’s failure to complete all of the tasks on the 600-flight-hour/24-month inspection checklist, which led to the lack of grease in the bearing going undetected.

NTSB docket ANC15LA015

Source: National Transportation Safety Board. Record last changed Oct 28, 2026, 10:54 UTC.

Aircraft involved

Aircraft
Airbus AS350 B2
Registration
N814EH
Year built
1992
Category
Helicopter
Damage
Substantial
Operating rules
Part 135: commuter and on-demand
Defining event
Enroute-cruise Flight control sys malf/fail

Source: National Transportation Safety Board aviation accident database. Counts only; Voydar holds no names.

Nearest airports

Airports with a Voydar profile closest to the recorded position. Proximity only.

  • Beluga Airport (BVU)6 nm (11 km) south-west
  • Tyonek Airport (TYE)12 nm (22 km) south-west

This page restates the NTSB's public record. Injury figures are counts; Voydar does not hold or publish the names of anyone involved.