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Airworthiness Directives; Sandel Avionics Incorporated Model ST3400 Terrain Awareness Warning System/Radio Magnetic Indicator (TAWS/ RMI) Units Approved Under Technical Standard Order(s) C113, C151a, or C151b; Installed on Various Small and Transport Category Airplanes

Unsafe Condition: A bearing error in the Sandel Avionics Incorporated Model ST3400 TAWS/RMI unit configured to receive bearing information from a VOR receiver interface via a composite video signal, due to a combina...

Why matched: Airworthiness Directives; Sandel Avionics Incorporated Model ST3400 Terrain Awareness Warning System/Radio Magnetic Indicator (TAWS/ RMI) Units Approved Under Technical Standard Order(s) C113, C151a, or C151b; Installed on Various Small and Transport Category Airplanes

Airworthiness Directives; Sabreliner Model NA-265, NA-265-20, NA-265-30, NA-265-40, NA-265-50, NA-265-60, NA-265-65, NA-265-70, and NA-265-80 Series Airplanes

Unsafe Condition: Cracking in the upper and lower flanges of the front and rear spars of the wing near the wing center section, and in the lugs on the rear spar, which could result in structural failure of the wing.

Why matched: Airworthiness Directives; Sabreliner Model NA-265, NA-265-20, NA- 265-30, NA-265-40, NA-265-50, NA-265-60, NA-265-65, NA-265-70, and NA- 265-80 Series Airplanes

Airworthiness Directives; Goodrich Avionics Systems, Inc. TAWS8000 Terrain Awareness Warning System

Unsafe Condition: This document makes a correction to Airworthiness Directive (AD) 2004-08-15, which was published in the Federal Register on April 21, 2004 (69 FR 21393), and applies to all Goodrich Avionics System...

Why matched: Airworthiness Directives; Goodrich Avionics Systems, Inc. TAWS8000 Terrain Awareness Warning System

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; Overland Aviation Services Fire Extinguishing System Bottle Cartridges

Unsafe Condition: Fire extinguishing system bottle cartridges manufactured by Overland Aviation Services (OAS) activated with excessive energetic force, causing the discharge valve outlet screen to fracture and scre...

Why matched: Airworthiness Directives; Overland Aviation Services Fire Extinguishing System Bottle Cartridges

Airworthiness Directives; Sabreliner Model NA-265-40, NA-265-60, NA-70, and, NA-265-80 Series Airplanes

Unsafe Condition: Reduced controllability due to adverse aerodynamic effects of ice adhering to the airplane prior to the first deicing cycle when pneumatic deicing boots are not activated at the first signs of ice ...

Why matched: Airworthiness Directives; Sabreliner Model NA-265-40, NA-265-60, NA-70, and, NA-265-80 Series Airplanes

Airworthiness Directives; AlliedSignal Avionics, Inc. Models GNS-XLS and GNS-XL Flight Management Systems

Unsafe Condition: The GNS-XL or GNS-XLS GPS flight management system may generate misleading information during non-precision GPS or Overlay approaches due to software limitations, causing deviation from an intended...

Why matched: Airworthiness Directives; AlliedSignal Avionics, Inc. Models GNS-XLS and GNS-XL Flight Management Systems

Airworthiness Directives; Sabreliner Model NA-265-40, -60, -70, and -80 Series Airplanes

Unsafe Condition: The unsafe condition exists because flight crews are not provided with adequate information to determine when the airplane is operating in icing conditions outside its certification envelope or wha...

Why matched: Airworthiness Directives; Sabreliner Model NA-265-40, -60, -70, and -80 Series Airplanes

Airworthiness Directives; Pacific Scientific Company, HTL/Kin-Tech Division, Fire Extinguisher Bottle Cartridges

Unsafe Condition: Electrical shorting of the pins in the fire extinguisher bottle cartridges, caused by the presence of aluminum foil, could result in failure of the fire extinguisher bottle to discharge when comman...

Why matched: Airworthiness Directives; Pacific Scientific Company, HTL/Kin-Tech Division, Fire Extinguisher Bottle Cartridges

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

Airworthiness Directives; Allied Signal Commercial Avionics Systems CAS-81 Traffic Alert and Collision Avoidance Systems (TCAS) as Installed in, but not Limited to, Various Transport Category Airplanes

Unsafe Condition: Failure of the audio output of the CAS-81 TCAS may result in the flightcrew not receiving necessary traffic alerts and collision avoidance information.

Why matched: Airworthiness Directives; Allied Signal Commercial Avionics Systems CAS-81 Traffic Alert and Collision Avoidance Systems (TCAS) as Installed in, but not Limited to, Various Transport Category Airplanes

Airworthiness Directives: Allied Signal Aerospace Company, Air Transport Avionics (formerly Bendix\\King Air Transport Avionics Division) Traffic Alert and Collision Avoidance System II Processors

Unsafe Condition: Incompatibility between TCAS II processors and the current air traffic control system could cause collisions or near misses.

Why matched: Airworthiness Directives: Allied Signal Aerospace Company, Air Transport Avionics (formerly Bendix\\King Air Transport Avionics Division) Traffic Alert and Collision Avoidance System II Processors

Airworthiness Directives: Rockwell International, Collins Air Transport Division, Traffic Alert and Collision Avoidance System II Processors

Unsafe Condition: Incompatibility between TCAS II processors and the current air traffic control system could cause collisions or near misses due to unresolved non-crossing resolution advisories (RAs).

Why matched: Airworthiness Directives: Rockwell International, Collins Air Transport Division, Traffic Alert and Collision Avoidance System II Processors

Airworthiness Directives; SABRELINER Model NA265, NA265-20, -30, -40, -50, -60, -65, -70, and -80 Series Airplanes

Unsafe Condition: Electrical arcing, which could lead to fire inside the aft section of the fuselage.

Why matched: Airworthiness Directives; SABRELINER Model NA265, NA265-20, -30, -40, -50, -60, -65, -70, and -80 Series Airplanes

Airworthiness Directives; ROCKWELL INTERNATIONAL Models NA 265-65, and NA 265-60 Series Airplanes

Unsafe Condition: Possible inadvertent cabin pressure loss due to fatigue failure of interior pressure panel P/N 306-312005-3.

Why matched: Airworthiness Directives; ROCKWELL INTERNATIONAL Models NA 265-65, and NA 265-60 Series Airplanes

Airworthiness Directives; ROCKWELL INTERNATIONAL Models NA 265-60 and NA 265-80 Airplanes

Unsafe Condition: Structural failure of the airframe due to deviations from the supplemental type design in areas modified by The Raisbeck Group STC's SA687NW or SA847NW, including plugged holes, oblong or irregular...

Why matched: Airworthiness Directives; ROCKWELL INTERNATIONAL Models NA 265-60 and NA 265-80 Airplanes

Airworthiness Directives; ROCKWELL INTERNATIONAL Models NA-265-60 and NA-265-65, Airplanes

Unsafe Condition: Flap screwjack actuator malfunction due to bearing failure.

Why matched: Airworthiness Directives; ROCKWELL INTERNATIONAL Models NA-265-60 and NA-265-65, Airplanes

Airworthiness Directives; ROCKWELL Models NA-265-60 and NA-265-80 Airplanes

Unsafe Condition: Improper flap motion caused by a failure in the flap actuation system.

Why matched: Airworthiness Directives; ROCKWELL Models NA-265-60 and NA-265-80 Airplanes

Airworthiness Directives; ROCKWELL INTERNATIONAL Models NA-265-40 and NA-265-60 Airplanes

Unsafe Condition: Cabin depressurization due to potential cracking of the door stop (beam) as a result of fatigue.

Why matched: Airworthiness Directives; ROCKWELL INTERNATIONAL Models NA-265-40 and NA-265-60 Airplanes

Airworthiness Directives; ROCKWELL INTERNATIONAL Models NA 265-60 and NA 265-80 Airplanes

Unsafe Condition: Failure of the wing flap support structure due to cracks or fatigue in airplanes equipped with the Raisbeck Mark Five modification under STC SA687NW or SA847NW.

Why matched: Airworthiness Directives; ROCKWELL INTERNATIONAL Models NA 265-60 and NA 265-80 Airplanes