6 ADs indexed for Hamilton Standard Division | Hamilton Sundstrand 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
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 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
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
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