N9159F

Accidents and incidents (NTSB)

From the US National Transportation Safety Board’s aviation accident database. Each record links to its official docket.

• Feb 9, 2022 · Bel Air, MD

  Accident · No injuries · Substantial damage

  Enroute-cruise Loss of engine power (partial)

  Probable cause (NTSB): A loss of engine power due to bearing failures in the turbine section resulting from a fatigue fracture of the oil supply line that fed oil to the Nos. 6 and 7 bearings. The oil line failure led to rapid deterioration of the bearings from oil starvation. Contributing to the power loss was the installation of a No. 8 stationary seal with an undersized outside diameter, which resulted in a reduction of support for the turbine section rotating components and resulted in high vibration loads in the engine, which ultimately caused the oil supply line to fatigue and fail. Also contributing was the improper or inadequate inspections of the No. 8 stationary seal by maintenance personnel.

  NTSB docket ERA22LA117

• Apr 25, 2020 · Pylesville, MD

  Accident · No injuries · Substantial damage

  Maneuvering-hover Fuel starvation

  Probable cause (NTSB): The loss of engine power due to fuel starvation as a result of unporting of the fuel tank supply pickup while the helicopter was maneuvered to move a conductor wire. Contributing to the accident was the helicopter’s inappropriate configuration for the type of operation being conducted, which impeded the pilot’s ability to release the long line and perform a successful emergency landing.

  NTSB docket ERA20LA160

Source: National Transportation Safety Board, public domain.

On the US register

N9159F is one of 207 Hughes Helicopters Inc HUGHES 369D aircraft on the US civil register, built between 1976 and 2021.

Counted by Voydar from the FAA registry.

Other Hughes Helicopters Inc HUGHES 369D aircraft

• N104SU · 1977
• N105AC · 1978
• N105SU · 1988
• N106SU · 1981
• N107SF · 1978
• N1088N · 1980