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/

SAIB: CE-10-40 Water contamination of fuel tank systems

Recent safety information on Cessna 150, 170, and 172 series airplanes caused us to re-examine our efforts on preventing accidents and incidents due to water contaminated fuel. Water may enter the fuel tank system via any penetration in the wing fuel tank. Water in the fuel may come out of solution, settle and make its way to a drain location in the form of a blob, pea, or BB-shaped translucent mass found at the bottom of the sampler cup. Water suspended in the fuel may lead to a cloudy or hazy appearance in the sampler cup. Water may have dissolved in the fuel, but the conditions have not yet occurred to cause the water to come out of solution and perhaps adhere to the dry tank upper surface or walls (similar to condensation). Understanding this; all pilots, owners, operators, maintenance and service personnel of these type airplanes should assume some water exists in the fuel tank system on the airplane.

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2011-CE-010-AD Inspecting the wings for internal and external damage

We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires inspecting the wings for internal and external damage, repairing any damage, reinforcing the wings, installing operational limitation placards in the cockpit, and adding limitations to the airplane flight manual supplement. This AD was prompted by a review of installed Flint Aero, Inc. wing tip auxiliary fuel tanks, Supplemental Type Certificate (STC) SA5090NM. We are issuing this AD to detect and correct damage in the wings and to prevent overload failure of the wing due to the installation of the STC. Damage in the wing or overload failure of the wing could result in structural failure of the wing, which could result in loss of control.

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2009-CE-013-AD Inspections of Seat parts

We are superseding an existing airworthiness directive (AD) for Cessna Aircraft Company (Cessna) 150, 152, 170, 172, 175, 177, 180, 182, 185, 188, 190, 195, 206, 207, 210, T303, 336, and 337 series airplanes. That AD currently requires repetitive inspections and replacement of parts, if necessary, of the seat rail and seat rail holes; seat pin engagement; seat rollers, washers, and axle bolts or bushings; wall thickness of roller housing and the tang; and lock pin springs. This new AD requires retaining all of the actions from the previous AD and adding steps to the inspection procedures in the previous AD. This AD was prompted by added steps to the inspection procedures, added revised figures, and clarification of some of the existing steps. We are issuing this AD to prevent seat slippage or the seat roller housing from departing the seat rail, which may consequently cause the pilot/copilot to be unable to reach all the controls. This failure could lead to the pilot/copilot losing control of the airplane.

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2009-CE-065-AD Cessna Rudder Inspections

We are superseding an existing airworthiness directive (AD) for the products listed above. AD 2009-09-09 currently requires repetitive inspections of the rudder hinges and the rudder hinge brackets for damage, i.e., cracking, deformation, and discoloration. If damage is found during any inspection, AD 2009-09-09 also requires replacing the damaged rudder hinge and/or rudder hinge bracket. This new AD retains the inspection requirements of AD 2009-09-09, adds airplanes to the Applicability section, and adds a terminating action for the repetitive inspection requirements. This AD resulted from the manufacturer developing a modification that terminates the repetitive inspections and from the manufacture adding airplane serial numbers into the Applicability section. We are issuing this AD to detect and correct damage in the rudder hinges and the rudder hinge brackets, which could result in failure of the rudder. This failure could lead to loss of control.

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2010-CE-068-AD Disbonding of the wing skin from the wing spar

We are adopting a new airworthiness directive (AD) for the products listed above. This emergency AD was sent previously to all known U.S. owners and operators of these airplanes. This AD requires obtaining written approval from the Manager, Wichita Aircraft Certification Office (ACO), to operate the airplane. This written approval must clearly state that operation is approved per Emergency AD 2010-26-54. This AD was prompted by a Cessna Model LC41-550FG airplane that suffered a significant structural failure in the wing during a production acceptance flight test. We are issuing this AD to prevent catastrophic failure of the wing due to disbonding of the wing skin from the wing spar.

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2010-26-54 Emergency AD Supersedes AD 2010-26-53

Emergency airworthiness directive (AD) 2010-26-54 supersedes AD 2010-26-53, which currently applies to owners/operators of Cessna Aircraft Company (Cessna) (Type Certificate A00003SE previously held by Columbia Aircraft Manufacturing (previously The Lancair Company)) Models LC41-550FG and LC42-550FG airplanes that received the emergency AD by letter issued December 10, 2010.

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2010-26-53 Emergency AD Disbonding of the Wing Skin from the Wing Spar

This emergency AD was prompted by a Cessna Model LC41-550FG that suffered a significant structural failure in the wing during a production acceptance flight test. The wing skin disbonded from the upper forward wing spar. The length of the disbond was approximately 7 feet. This condition, if not corrected, could result in catastrophic failure of the wing due to disbonding of the wing skin from the wing spar. We are evaluating this situation and may take additional AD action as necessary.

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SAIB: CE-11-29 Revision from SAIB CE-11-29

During an inspection of an elevator trim installation per S-TEC STC SA08996AC-D, it was found that the elevator trim cables pass through a bulkhead with about five degrees of deflection. A phenolic block is installed to prevent wear on the bulkhead and cable. Additionally, the cable impacts the floor aft of the bulkhead. A phenolic strip is installed to prevent contact between the cable and the floor. Until recently, there were no directed inspections of the phenolic block and strip.

The S-TEC STCs have been revised to install pulleys to move the cables off the bulkhead pass through.

Also, during the installation inspection, it was noticed that the rudder trim tab blocks were not properly relocated in accordance with the S-TEC STCs. This prevented the rudder system from obtaining full travel. There was no approval for the location and installation of the trim tab blocks for this particular installation.

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2010-CE-048-AD Inspecting the Wings for Internal and External damage

We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires inspecting the wings for internal and external damage, repairing any damage found, installing an operational limitation placard in the cockpit, adding limitations to the flight manual supplement, and reporting the results of the inspection to the FAA if damage is found. This AD was prompted by a wing overload failure and by reports of cracks in the upper wing skins on certain Cessna airplanes that are or have ever been modified by Aviation Enterprises Supplemental Type Certificate (STC) SA02055AT, SA02056AT, SA02307AT, or SA02308AT. We are issuing this AD to detect and correct damage in the wings and to prevent overload failure of the wing due to the installation of the STCs. Damage in the wing or overload failure of the wing could result in structural failure of the wing, which could result in loss of control.

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2010-CE-012-AD Inspect the thrust Attenuator Paddle Assemblies

We are adopting a new airworthiness directive (AD) to supersede AD 2009-24-13, which applies to certain Cessna Aircraft Company (Cessna) Model 525A airplanes. AD 2009-24-13 currently requires you to repetitively inspect the thrust attenuator paddle assemblies for loose and damaged fasteners and for cracks. AD 2009-24-13 also requires you to replace loose or damaged fasteners and replace cracked thrust attenuator paddles found during any inspection. Since we issued AD 2009-24-13, Cessna has developed new design thrust attenuator paddles and universal head rivets as terminating action for the repetitive inspections. Consequently, this AD would retain the requirements of AD 2009-24-13 until replacement of both thrust attenuator paddles and the eight countersunk fasteners with new design thrust attenuator paddles and universal head rivets. We are issuing this AD to detect and correct loose and damaged fasteners and cracks in the thrust attenuator paddles, which could result in in-flight departure of the thrust attenuator paddles. This failure could lead to rudder and elevator damage and result in loss of control.

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2007-CE-030-AD Cessna Installing placards

We are revising an existing airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) Models 150F, 150G, 150H, 150J, 150K, 150L, 150M, A150K, A150L, A150M, F150F, F150G, F150H, F150J, F150K, F150L, F150M, FA150K, FA150L, FRA150L, FA150M, FRA150M, 152, A152, F152, and FA152 airplanes. That AD currently requires either installing a placard prohibiting spins and other acrobatic maneuvers in the airplane or replacing the rudder stop, the rudder stop bumper, and the attachment hardware with a rudder stop modification kit. This new AD requires a change to the modification kit and removal of a small amount of material from the rudder horn assembly for those that have not yet complied with the existing AD or for those who can not comply with the existing AD (because they were unable to obtain full rudder travel with the existing kits). This AD was prompted by operators who have reported difficulty in obtaining full rudder travel with the existing modification kit. We are issuing this AD to revise the kits to use longer rivets and allow a small amount of material to be removed from the rudder horn assembly, which allows operators to obtain full rudder travel.

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2008-CE-066-AD; Correction, Final Rule

 The FAA is correcting an airworthiness directive (AD) that was published in the Federal Register. That AD applies to the products listed above. In the Information Heading and in the SUMMARY section of the published AD, we incorrectly included Cessna 188 series airplanes. In the Unsafe Condition section, we incorrectly designated that paragraph as (e) instead of (d). Also in the Compliance section, paragraph (f)(2), and in Figure 1, we incorrectly stated the mailing address for the report. We are issuing this document to help eliminate any confusion that this AD may have created in the Information Heading and in the SUMMARY and Unsafe Condition sections. This document corrects those errors. In all other respects, the original document remains the same.

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2010-CE-058-AD Correction; Final Rule

The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. That AD applies to the products listed above. The numbering of paragraphs (j)(3), (j)(4), and (j)(5) in the Material Incorporated by Reference section is incorrect. This document corrects that error. In all other respects, the original document remains the same.

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2010-CE-058-AD Cessna- FADEC backup battery

We are adopting a new airworthiness directive (AD) for the products listed above. This AD requires installing a full authority digital engine control (FADEC) backup battery, replacing the supplement pilot's operating handbook and FAA approved airplane flight manual, and replacing the FADEC backup battery every 12 calendar months. This AD was prompted by an incident where an airplane experienced an in-flight engine shutdown caused by a momentary loss of electrical power to the FADEC. We are issuing this AD to prevent interruption of electrical power to the FADEC, which could result in an uncommanded engine shutdown. This failure could lead to a loss of engine power.

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2011-21-51 AD Cessna 525C Aircraft Battery

This emergency AD was prompted by a report of a battery fire that resulted after an energized ground power unit was connected to one of the affected airplanes equipped with a lithium-ion battery, Cessna part number (P/N) 9914788-1, as the main aircraft battery. This condition, if not corrected, could result in an aircraft fire.

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2011-CE-010-AD - Cessna Wing Inspection

This AD requires inspecting the wings for internal and external damage, repairing any damage, reinforcing the wings, installing operational limitation placards in the cockpit, and adding limitations to the airplane flight manual supplement. This AD was prompted by a review of installed Flint Aero, Inc. wing tip auxiliary fuel tanks, Supplemental Type Certificate (STC) SA5090NM. We are issuing this AD to detect and correct damage in the wings and to prevent overload failure of the wing due to the installation of the STC. Damage in the wing or overload failure of the wing could result in structural failure of the wing, which could result in loss of control.

 

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Aviation Maintenance Alerts - 2011-15-11

The Aviation Maintenance Alerts provides a way to share information on aviation service experiences. This leads to improved aeronautical product durability, reliability, and safety. We use information sent to us by people who operate and maintain civil aeronautical products to prepare the Alerts.

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Aviation Maintenance Alerts - 2011-10-09

2011-10-09 The Aviation Maintenance Alerts provides a way to share information on aviation service experiences. This leads to improved aeronautical product durability, reliability, and safety. We use information sent to us by people who operate and maintain civil aeronautical products to prepare the Alerts.

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