The Boeing Company | Hamilton Standard Airworthiness Directives

HAMILTON STANDARD Models All Standard Aluminum-Alloy Propellers

Unsafe Condition: Propeller blades may have undetected damage from impact with solid objects, leading to bending, twisting, or other structural failures that could result in blade separation or loss of thrust.

Why matched: HAMILTON STANDARD Models All Standard Aluminum-Alloy Propellers

HAMILTON STANDARD Models 6895-8 Aluminum Alloy Propellers

Unsafe Condition: Undetected blade damage in Hamilton Standard Models 6895-8 Aluminum Alloy Propellers could lead to blade failures between overhauls on Douglas DC-6, DC-6A, and DC-6B aircraft.

Why matched: HAMILTON STANDARD Models 6895-8 Aluminum Alloy Propellers

HAMILTON STANDARD Models Hamilton Standard 2H17 Series Propellers

Unsafe Condition: Cracks and surface defects in Hamilton Standard 2H17 Series propeller blades, leading to blade tip shell loss in flight and unscheduled landings.

Why matched: HAMILTON STANDARD Models Hamilton Standard 2H17 Series Propellers