The concern sheetOCR
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Airworthiness FAA Concern Sheet September 21, 2009 Name: Organization: Title: Aircraft Certification Office Program Manager Cindy Lorenzen Make, Model, Series, Serial No.: Varga Model 2150, 2150A, 2150A-TG and 2180 all serial numbers Address: 1701 Columbia Ave.
College Park, GA 30337 Reason for Airworthiness Concern: Broken Telephone: (404) 474-5524, fax -5606 (cracked/severed web, loose fasteners) Vertical Tail E-mail: cindy.lorenzen@faa.gov Front Spar The FAA has received reports of cracking in the vertical tail front spar of four Varga Model 2150 series and 2180 airplanes. The Type Certificate Holder for the Varga airplanes, Augustair, is in process of defining a Service Bulletin to address inspection, repair or alteration of the vertical tail front spar. The Service Bulletin will specify inspections and fabrication and installation of an
0.090 2024-T3 web doubler as a repair for cracks, or as a preventative alteration. The Service Bulletin will also include installation of a pair of 0.040 2024-T3 external straps as an optional precautionary measure to be installed at the discretion of the repair facility or owner/operator. All fasteners must be checked for condition and fit and replaced as required. Procedures for removing and re-installing the tail will be included as a supplement to the Aircraft Maintenance Manual.
The FAA is considering making the Augustair Service Bulletin mandatory through an Airworthiness Directive. We would propose to require an initial visual inspection that is done without removing the tail be conducted before further flight as specified in the Service Bulletin. If damage is discovered by this inspection, then the repair specified in the Service Bulletin must be installed prior to further flight. If damage is not discovered in the initial visual inspection, then the follow-up tail removal, inspection, and repair or alteration and re-installation as specified in initial inspection. the Service Bulletin must be accomplished prior to 10 flight hours of time in service after the Request for Information:
The FAA would like persons familiar with Morrisey/Shinn/Varga Model 2150 series and 2180 airplanes to send us a response to this concern sheet by 10/2/09 if you have a better alternative to removing the vertical tail and installing a web doubler (plus optional external straps as an additional precaution). Please be as specific as possible when sending suggestions.
Attachments: Risk Assessment Ix Notification: FAA* [X], AOPA* [X], EAA* •, Type Club [X], TC* Holder [x], Other Response Requested by 10/2/2009 - Emergency (10 days) IX), Alert (30 days) •, Information (90 days) • * Federal Aviation Administration (FAA), Aircraft Owners & Pilots Association (AOPA); Experimental Aircraft Association (EAA); Type Certificate (TC) This Airworthiness Concern Sheet (ACS) is intended as a means for FAA Aviation Safety Engineers to coordinate airworthiness concerns with aircraft owner/operators through associations and type clubs. At this time, the FAA has not made a determination on what type of corrective action (if any) should be taken. The resolution of this airworthiness concern could involve an AD action or an SAIB, or the FAA could determine that no action is needed at this time. The FAA's final determination will depend in part on the information received in response to this ACS. The FAA endorses dissemination of this technical information to all manufacturers and requests association and type clubs comments.