47 ADs indexed for Hamilton Standard aircraft.
Airworthiness Directives; Hamilton Standard Division and Hamilton Sundstrand Corporation Propellers
Unsafe Condition: The amount of corrosion detected during major inspections (MI) could result in propeller failure and loss of airplane control.
Why matched: Airworthiness Directives; Hamilton Standard Division and Hamilton Sundstrand Corporation Propellers
Airworthiness Directives; Hamilton Sundstrand Corporation (Formerly Hamilton Standard Division) Model 568F Propellers
Unsafe Condition: Reports of propeller blades found at inspection with random areas of missing adhesive under the compression wrap, which exposed the steel tulip part of the blade, leading to potential corrosion-ind...
Why matched: Airworthiness Directives; Hamilton Sundstrand Corporation (Formerly Hamilton Standard Division) Model 568F Propellers
Airworthiness Directives; Hamilton Standard 54H60 Series Propellers
Unsafe Condition: Insufficient cold rolling of the beveled radius of the blade flange can lead to propeller blade cracks, potentially resulting in blade separation and damage to the aircraft.
Airworthiness Directives; Hamilton Standard 54H60 Series Propellers
Unsafe Condition: Propeller blade cracks due to incomplete cold rolling during manufacture in the beveled radius area of the blade flange, which can result in blade separation and damage to the aircraft.
Why matched: Airworthiness Directives; Hamilton Standard 54H60 Series Propellers
Hamilton Standard 54H60 Series Propellers
Unsafe Condition: Propeller blade fracture due to a manufacturing defect in the beveled radius of the blade root, which could result in blade separation and loss of control of the aircraft.
Why matched: Hamilton Standard 54H60 Series Propellers
Airworthiness Directives; Hamilton Standard 54H60 Series Propellers
Unsafe Condition: Propeller blade fracture due to manufacturing defect could result in blade separation and loss of control.
Hamilton Standard 14RF and 14SF Series, and Hamilton Standard/British Aerospace Model 6/5500/F Propellers
Unsafe Condition: Failure of critical control components, including transfer tube assemblies, actuator assemblies, and propeller control units (PCUs), could result in loss of propeller control and subsequent loss of...
Why matched: Hamilton Standard 14RF and 14SF Series, and Hamilton Standard/British Aerospace Model 6/5500/F Propellers
Hamilton Standard Model 14RF-9 Propellers
Unsafe Condition: Propeller blade separation due to propeller blade shank cracking caused by mechanical damage induced from a localized interference condition between the blade spar and foam mold during manufacture.
Why matched: Hamilton Standard Model 14RF-9 Propellers
Airworthiness Directives; Hamilton Standard Model 14RF-9 Propellers
Unsafe Condition: propeller blade separation due to propeller blade shank cracking that can result in loss of control of the aircraft
Hamilton Standard Models 14RF-9, 14RF-19, 14RF-21; and 14SF-5, 14SF-7, 14SF-11, 14SFL11, 14SF-15, 14SF-17, 14SF-19, and 14SF-23; and Hamilton Standard/British Aerospace 6/5500/F Propellers
Unsafe Condition: Separation of a propeller blade due to cracks initiating in the blade taper bore, which can result in aircraft damage and possible loss of aircraft control.
Why matched: Hamilton Standard Models 14RF-9, 14RF-19, 14RF-21; and 14SF-5, 14SF-7, 14SF-11, 14SFL11, 14SF-15, 14SF-17, 14SF-19, and 14SF-23; and Hamilton Standard/British Aerospace 6/5500/F Propellers
Hamilton Standard 14RF, 247F, 14SF, and 6/5500/F Series Propellers
Unsafe Condition: Control Unit Servo Ballscrew Internal Spline Assembly
Why matched: Hamilton Standard 14RF, 247F, 14SF, and 6/5500/F Series Propellers
Airworthiness Directives; Hamilton Standard Model 14RF-9 Propellers
Unsafe Condition: Propeller blade shank cracking could lead to propeller blade separation, resulting in loss of control of the aircraft.
Airworthiness Directives; Hamilton Standard 14RF Series, 14SF Series, and Hamilton Standard/British Aerospace Model 6/5500/F Propellers
Unsafe Condition: Cracks initiating in the blade taper bore can lead to loss of a propeller blade in flight.
HAMILTON STANDARD Model 14RF-9, 14RF-19, and 14RF-21 Propellers
Unsafe Condition: Propeller hub cracking and loss of engine oil, and possible loss of a propeller blade or hub.
Why matched: HAMILTON STANDARD Model 14RF-9, 14RF-19, and 14RF-21 Propellers
HAMILTON STANDARD Models 14RF-9, 14RF-19, and 14RF-21, and Models 14SF-5, 14SF-7, 14SF-11, 14SF-15, 14SF-17, 14SF-19, and 14SF-23 Propellers, and Hamilton Standard-British Aerospace Model 6/5500/F-1 propellers
Unsafe Condition: Loss of control of the propeller blade pitch due to propeller control unit (PCU) ballscrew quill wear.
Why matched: HAMILTON STANDARD Models 14RF-9, 14RF-19, and 14RF-21, and Models 14SF-5, 14SF-7, 14SF-11, 14SF-15, 14SF-17, 14SF-19, and 14SF-23 Propellers, and Hamilton Standard-British Aerospace Model 6/5500/F-1 propellers
HAMILTON STANDARD: Hydromatic (noncounterweighted) propellers with aluminum blades
Unsafe Condition: Propeller blade failure due to corrosion and fatigue in the blade fillet and shank area, particularly under the teflon friction reduction strip and the resin corrosion barrier.
Why matched: HAMILTON STANDARD: Hydromatic (noncounterweighted) propellers with aluminum blades
HAMILTON STANDARD Models 14SF-5 and 14SF-7 Propellers
Unsafe Condition: Loss of the plastic 'Rynite' blade retaining rings, P/N 785540, and severe damage to the blade retention system with resultant propeller unbalance.
Why matched: HAMILTON STANDARD Models 14SF-5 and 14SF-7 Propellers
HAMILTON STANDARD Models 54H60-77, -81, -123, -125, -131, and -133 Propellers
Unsafe Condition: Loss of aircraft control and possible loss of aircraft due to slippage of the valve housing cover input gear when less than 36 pounds of load is applied.
Why matched: HAMILTON STANDARD Models 54H60-77, -81, -123, -125, -131, and -133 Propellers
HAMILTON STANDARD Model 23LF-335 and -371 Propellers
Unsafe Condition: Cracks in the blades/counterweights could cause possible propeller failure.
Why matched: HAMILTON STANDARD Model 23LF-335 and -371 Propellers
HAMILTON STANDARD Model 24PF Propellers
Unsafe Condition: Spalling in the bearing raceway surfaces of the barrel and blade split races can lead to propeller failure.
Why matched: HAMILTON STANDARD Model 24PF Propellers