Aviation Alerts

PLEASE NOTE: The Cessna Flyer Association posts Airworthiness Directives, Alerts and Service Bulletins as a courtesy for our members and for information only. This listing in not complete and should not be used as the official source of this information. It is up to you to do proper research on what ADs and SBs are appropriate for your aircraft. You are encouraged to contact your licensed A&P mechanic and to reference the official FAA website for correct information. http://www.faa.gov/aircraft/safety/alerts/

We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) Model 402C and 414A airplanes. This AD requires repetitively inspecting the engine mount beams for cracks and contacting Cessna for FAA-approved corrective action if cracks are found. This AD also requires sending an inspection report to the FAA and to Cessna. This AD was prompted by reports of cracks found across the engine mount beams. We are issuing this AD to correct the unsafe condition on these products.

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This Special Airworthiness Information Bulletin is to alert owners, operators, and maintenance technicians of an airworthiness concern with aluminum seat belt mounting brackets affecting all Cessna Models 120 and 140 airplanes. Textron Aviation has issued Service Bulletin SEB-25-03, dated February 17, 2015, to address this concern.
At this time, the airworthiness concern is not an unsafe condition that would warrant airworthiness directive (AD) action under Title 14 of the Code of Federal Regulations (14 CFR) part 39.

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Advisory Circular 60-22

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CessnaFlyer.org/AC6022

February, 2015-

Information received during a Federal Aviation Administration (FAA) Suspected Unapproved Parts (SUP) investigation revealed between March 2011 and March 2013 Dukes Aerospace Incorporated, located at 9060 Winnetka Avenue, Northridge, CA 91324, improperly maintained, overhauled, and approved for return to service various aircraft articles (listed later in this document) which were manufactured by Dukes Incorporated/Dukes Aerospace Incorporated contrary to the regulations. Dukes Aerospace Incorporated holds FAA Air Agency Certificate No. 1DUR590B with Accessory Class 1 and 2 Ratings. Evidence indicates that Dukes Aerospace Incorporated approved aircraft articles for return to service that were not maintained in compliance with the manufacturer's maintenance manuals or other data acceptable to the FAA. Discrepancies include, but are not limited to the following: (1) approving articles for return to service without using methods techniques and practices acceptable to the Administrator (2) converting and/or modifying aircraft components without using approved data.

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Cessna Global Alternate Method of Compliance for Airworthiness Directive 2001-06-17.

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February, 2015-

Winter flying in most parts of the United States can adversely affect flight operations. Poor weather conditions with fast moving fronts, strong and gusty winds, blowing and drifting snow, and icing conditions are just part of the conditions that require careful planning in order to minimize their effects. Operation in this environment requires special winter operating procedures.
These pages are designed to refresh the pilot's memory in cold weather operations. Pilots should assure themselves that they have obtained adequate cold weather knowledge appropriate to the aircraft used and the geographical and weather environment. Winter flying is not particularly hazardous if the pilot will use a little extra caution and exercise good judgment in analyzing weather situations.

The material presented here has been taken from many discussions of winter flying techniques with highly qualified pilots in various parts of the United States. The experience gained in accident investigations has also been included in this guide.
This guide contains ideas and possible courses of action for the pilots to keep in mind while operating aircraft during winter months. It is produced in connection with the Federal Aviation Administration, General Aviation Accident Prevention Program, as a reference for pilots desiring information on winter flying.

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We are superseding airworthiness directive (AD) 2011-23-01 for all Technify Motors GmbH (TMG) models TAE 125-01 and TAE 125-02-99 reciprocating engines with certain part number (P/N) and serial number (S/N) clutch assemblies installed. AD 2011-23-01 required replacement of certain P/N and S/N clutch assemblies. This AD requires the same actions but expands the population of affected P/N and S/N clutch assemblies. This AD was prompted by an additional report of a clutch assembly that malfunctioned due to disk springs that received a nonconforming heat treatment process. We are issuing this AD to prevent failure of the clutch assembly, which could lead to failure of the engine, in-flight shutdown, and loss of control of the airplane.

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We are adopting a new airworthiness directive (AD) for certain serial number (S/N) Lycoming Engines reciprocating engines. This AD was prompted by propeller governor shaft set screws coming loose due to improper installation. We are issuing this AD to prevent the propeller governor shaft set screw from coming loose, causing damage to the engine and damage to the airplane.

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We propose to supersede Airworthiness Directive (AD) 81–09–09, which applies to certain Meggitt (Troy), Inc. (previously known as Stewart Warner South Wind Corporation and as Stewart Warner South Wind Division) Model Series 8240 (Models 8240–A, 8240–C, 8240E, and 8248), 8253 (Models 8253–A, 8253–B, and 8253–C), 8259 (Models 8259–A, 8259–C, 8259– DL, 8259HL2, 8259HR2, 8259JR2, 8259L, and 8259M), and 8472 (Models 8472C and 8472D) combustion heaters. AD 81–09–09 currently  requires repetitive inspections of the combustion heater; repetitive general inspections of the combustion heater installation; and, for combustion heaters having 1,000 hours or more time-in-service (TIS), overhaul of the combustion heater.

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Airworthiness Directives; STEWART-WARNER (SOUTH WIND DIVISION): Applies to Combustion Heaters Model Series 8240, 8253, 8259, and 8472 marked as meeting the standards of FAA TSO-C20, installed in aircraft certificated in all categories

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The FAA is revising Airworthiness Directive (AD) 2004-25-16,
which applies to aircraft equipped with a fuel regulator shutoff valve
part number (P/N) 14D11, A14D11, B14D11, C14D11, 23D04, A23D04, B23D04,
C23D04, or P23D04 used with B1500, B2030, B2500, B3040, B3500, B4050,
or B4500 B-Series combustion heaters.

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The FAA is superseding Airworthiness Directive (AD) 96-20-07, which applies to certain B-Series Combustion Heaters Models B1500, B2030, B3040, and B4050 that are installed on airplanes. AD 96-20-07 currently requires you to repetitively test (pressure decay) the combustion tube and overhaul any heater that does not pass any test.

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We are adopting a new airworthiness directive (AD) for certain Rockwell Collins TDR-94 and TDR-94D Mode select (S) transponders that are installed on airplanes.

This Special Airworthiness Information Bulletin (SAIB) advises aircraft operators, fixed base operators, FAA repair stations, flight standards district offices, and foreign civil aviation authorities that NATO grade F-24 jet fuel, as specified in NATO Standard AFLP–3747, "Guide Specifications (Minimum Quality Standards) for Aviation Turbine Fuels (F-24, F-27, F-34, F-35, F-37, F-40, and F-44)," Edition A, Version 1, is acceptable for use on aircraft and engines certificated for operation with ASTM International D1655 grade Jet A fuel1, provided the fuel system icing inhibitor (FSII) concentration in the specific batch of F-24 fuel meets the aircraft's operating limitations pertaining to FSII. Grade F-24 jet fuel meets all the performance requirements of D1655 grade Jet A fuel, but specifies a different FSII concentration range as compared to ASTM International D1655 grade Jet A fuel.

This Special Airworthiness Information Bulletin (SAIB) alerts airframe manufacturers, navigation equipment manufacturers, and aircraft operators of any aircraft using Instrument Approach Procedures (IAPs) without a published vertical descent angle. This SAIB is not intended to prevent or inhibit manufacturers from providing advisory vertical guidance on IAPs.

This Special Airworthiness Information Bulletin (SAIB) informs the aviation industry of potential non-conforming Military Specifications (MS), Army Navy Standards (AN) and National Aerospace Standards (NAS) fasteners. The SAIB applies to manufacturers, owners, operators, and maintenance personnel of airplanes, rotorcraft, engines and appliances. This SAIB also asks the aviation industry to report fastener failures and other non-conformities. This bulletin focuses on MS 21042 nuts due to their wide usage in aviation, but is relevant to all other standard fasteners.
At this time, the airworthiness concern is not an unsafe condition and does not warrant an airworthiness directive (AD) action under Title 14 of the Code of Federal Regulations (14 CFR) part 39. However, a significant number of past ADs noted possible unsafe conditions caused by non-conforming fasteners.

This Special Airworthiness Information Bulletin is to alert owners, operators, and maintenance technicians of Cessna Aircraft Company (Cessna) Model 177RG and Reims Model F177RG airplanes of an airworthiness concern, specifically the need to inspect the MLG actuator rod end bearing to ensure that cracks are not present.

This Special Airworthiness Information Bulletin is to alert owners, operators, and maintenance technicians of Cessna 300 and 400 Models and Series of an airworthiness concern, specifically the need to inspect the main landing gear (MLG) torque link assembly to ensure the correct thickness washers are installed and to ensure the washers are installed in the correct position.

This Special Airworthiness Information Bulletin (SAIB) informs owners, operators, and maintenance personnel of turbocharged, reciprocating engine-powered airplanes about the potential for in-flight fire as a result of failure of the exhaust system V-band coupling securing the tailpipe to the turbocharger, the wastegate overboard, or any other exhaust system V-band coupling.


The FAA has issued airworthiness directives (AD) in the past concerning V-band couplings for specific airplane models. These ADs remain in effect where applicable. For those airplanes not affected by a V-band coupling AD, this airworthiness concern is not considered an unsafe condition at this time that would warrant AD action under Title 14 of the Code of Federal Regulations, part 39.

We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company Model 500, 501, 550, 551, S550, 560, 560XL, and 650 airplanes. This AD was prompted by multiple reports of smoke and/or fire in the tailcone caused by sparking due to excessive wear of the brushes in the air conditioning (A/C) motor. This AD requires inspecting to determine if certain A/C compressor motors are installed and to determine the accumulated hours on certain A/C drive motor assemblies; repetitive replacement of the brushes in the drive motor assembly, or, as an option to the brush replacement, deactivation of the A/C system and placard installation; and return of replaced brushes to Cessna. We are issuing this AD to prevent the brushes in the A/C motor from wearing down beyond their limits, which could result in the rivet in the brush contacting the commutator causing sparks and consequent fire and/or smoke in the tailcone with no means to detect or extinguish the fire and/or smoke.

We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft
Company (Cessna) Model 525 airplanes equipped with certain part number (P/N) air conditioning
(A/C) compressor motors. This AD was prompted by reports of smoke and/or fire in the tailcone
caused by brushes wearing beyond their limits on the A/C motor. This AD requires inspection of the
number of hours on the A/C compressor hour meter, inspection of the logbook, replacement of the
brushes on certain P/N A/C compressor motors or deactivation of the A/C system until replacement
of the brushes, and reporting of airplane information related to the replacement of the brushes. We
are issuing this AD to correct the unsafe condition on these products.

We are revising an existing airworthiness directive (AD) for all Cessna Aircraft Company (Cessna) Models 190, 195 (L-126A,B,C), 195A, and 195B airplanes that are equipped with certain inboard aileron hinge brackets. That AD currently requires you to repetitively inspect the affected inboard aileron hinge brackets for cracks or corrosion and replace them if cracks or corrosion is found. Replacement with aluminum brackets would terminate the need for the repetitive inspections. This new AD retains the actions of AD 2004-21-08 while requiring future compliance following a revised service bulletin that clarifies the casting numbers and part numbers to be inspected. This AD was prompted by reports of confusion between the casting number on the aileron hinge bracket and the part number (P/N) called out in the AD. We are issuing this AD to correct the unsafe condition on these products.

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