38 results found (848ms)
Airworthiness Directives; Hamilton Sundstrand Corporation Propellers
Unsafe Condition: The auxiliary motor and pump installed on a non-Hamilton Sundstrand propeller failing to feather the propeller in flight through either the primary or the backup means, caused by motor magnets in t...
Why matched: Airworthiness Directives; Hamilton Sundstrand Corporation Propellers
Airworthiness Directives; Hamilton Sundstrand Corporation Propellers
Unsafe Condition: An auxiliary motor and pump failing to feather a propeller in flight due to de-bonded motor magnets caused by corrosion at the magnet and housing interface.
Why matched: Airworthiness Directives; Hamilton Sundstrand Corporation Propellers
Airworthiness Directives; Hamilton Sundstrand Corporation Propellers
Unsafe Condition: The separation of a 54H60 model propeller blade installed on a USMCR KC-130T airplane during a flight in July 2017, resulting in the loss of the airplane and 17 fatalities, revealed that 54H60 mode...
Why matched: Airworthiness Directives; Hamilton Sundstrand Corporation Propellers
Airworthiness Directives; Hamilton Sundstrand Corporation Propellers
Unsafe Condition: Corrosion pitting and resultant intergranular radial crack in the propeller blade taper bore, which can lead to fatigue crack initiation and growth under service loading, resulting in blade separat...
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 Propellers Model 247F Propellers
Unsafe Condition: Failure of propeller blades part number R817370-1 could result in loss of control of the aircraft.
Why matched: Airworthiness Directives; Hamilton Sundstrand Propellers Model 247F Propellers
Airworthiness Directives; Hamilton Sundstrand Power Systems T-62T-46C12 Auxiliary Power Units
Unsafe Condition: APU compartment explosions due to over-fueling of the APU at low revolutions-per-minute during the start sequence.
Why matched: Airworthiness Directives; Hamilton Sundstrand Power Systems T- 62T-46C12 Auxiliary Power Units
Airworthiness Directives; Hamilton Sundstrand Propellers Model 568F Propellers
Unsafe Condition: Corrosion pits in the tulip area of the blades, caused by a lack of adhesive and primer beyond the end of the compression wrap during manufacturing, could result in cracks and separation of the bla...
Why matched: Airworthiness Directives; Hamilton Sundstrand Propellers Model 568F Propellers
Airworthiness Directives; Hamilton Sundstrand Model 14RF-19 Propellers
Unsafe Condition: Actuator yoke arms breaking during flight, which could cause high propeller vibration and contribute to reduced controllability of the airplane.
Why matched: Airworthiness Directives; Hamilton Sundstrand Model 14RF-19 Propellers
Airworthiness Directives; Hamilton Sundstrand Model 14RF-19 Propellers
Unsafe Condition: Propeller system actuator yoke arms breaking during flight.
Airworthiness Directives; Hamilton Sundstrand Model 14RF-9 Propellers; Correction
Unsafe Condition: This document makes a correction to Airworthiness Directive (AD) 2006-10-07. That AD applies to Hamilton Sundstrand Model 14RF-9 propellers. We published AD 2006-10-07 in the Federal Register on Ma...
Why matched: Airworthiness Directives; Hamilton Sundstrand Model 14RF-9 Propellers
Airworthiness Directives; Hamilton Sundstrand Power Systems (Formerly Sundstrand Power Systems) Auxiliary Power Units Models T-62T-46C2, T-62T-46C2A, T-62T-46C3, T-62T-46C7, and T-62T-46C7A
Unsafe Condition: Uncontained failures of compressor impeller assemblies in Hamilton Sundstrand Power Systems auxiliary power units (APUs) models T-62T-46C2, T-62T-46C2A, T-62T-46C3, T-62T-46C7, and T-62T-46C7A, wit...
Why matched: Airworthiness Directives; Hamilton Sundstrand Power Systems (Formerly Sundstrand Power Systems) Auxiliary Power Units Models T-62T- 46C2, T-62T-46C2A, T-62T-46C3, T-62T-46C7, and T-62T-46C7A
Airworthiness Directives; Hamilton Sundstrand Power Systems T-62T Series Auxiliary Power Units (APUs)
Unsafe Condition: Leaks caused by cracked bypass buttons that protruded beyond the internal o-ring seal, leading to a fire or explosion hazard.
Why matched: Airworthiness Directives; Hamilton Sundstrand Power Systems T-62T Series Auxiliary Power Units (APUs)
Airworthiness Directives; Hamilton Sundstrand Power Systems T-62T Series Auxiliary Power Units (APUs)
Unsafe Condition: Reports of leaks caused by cracked bypass buttons that protruded beyond the internal o-ring seal, leading to a potential fire or explosion from a fuel leak.
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; Saab Model SAAB 340B Series Airplanes Equipped with Hamilton Sundstrand Propellers
Unsafe Condition: Incorrectly installed 35-ampere (amp) remote controlled circuit breakers (RCCBs) on a 50-amp electrical circuit may result in erroneous tripping, premature failure of the RCCBs, loss of power to th...
Why matched: Airworthiness Directives; Saab Model SAAB 340B Series Airplanes Equipped with Hamilton Sundstrand Propellers
Airworthiness Directives; Hamilton Sundstrand Power Systems (Formerly Sundstrand Power Systems, Turbomach, and Solar) T-62T Series Auxiliary Power Units
Unsafe Condition: Stress levels in compressor wheels part number 100636-1 are high enough to initiate and drive crack growth, potentially leading to uncontained compressor wheel failure and damage to the airplane.
Why matched: Airworthiness Directives; Hamilton Sundstrand Power Systems (Formerly Sundstrand Power Systems, Turbomach, and Solar) T-62T Series Auxiliary Power Units
Airworthiness Directives; Hamilton Sundstrand Corporation Model 568F-1 Propellers.
Unsafe Condition: Corrosion-induced fatigue in propeller blades, part numbers R815505-2 and R815505-3, with serial numbers FR1698 or lower, could lead to blade separation and potential loss of airplane control.
Why matched: Airworthiness Directives; Hamilton Sundstrand Corporation Model 568F-1 Propellers.
Airworthiness Directives; Hamilton Sundstrand Model 247F Propellers
Unsafe Condition: Partial slippage at the bond joint between the blade tulip and the composite blade airfoil interface due to debonding.
Why matched: Airworthiness Directives; Hamilton Sundstrand Model 247F Propellers
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
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
Airworthiness Directives; Sundstrand T-62T-40C Series Auxiliary Power Units
Unsafe Condition: Compressor wheel ruptures due to low cycle fatigue could result in an uncontained APU failure and damage to the aircraft.
Why matched: Airworthiness Directives; Sundstrand T-62T-40C Series Auxiliary Power Units
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
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