The concern sheet
Text extracted from the PDF.
APPENDIX II Airworthiness
Concern Sheet (Initiated by FAA Office)
Date: 09/21/2009 T. N. Baktha Senior Aerospace Engineer (Airframe) Federal Aviation Administration Department of Transportation 1801 Airport Road Wichita KS 67209 316/946-4155; t.n.baktha@faa.gov Make, Model, Series, Serial No.: Cessna Models 525A S/N 0001 thru 0244 Reason for Airworthiness Concern: Cessna 525A has Thrust Attenuator Paddles just behind the engines. They depart the airplane in flight and so far we had four such incidences and in two cases, the rudder was damaged.
FAA Description of Airworthiness Concern
Please see the description in the attached ASL525A-78-01 in the next page.
Comments:
FAA requests your comments . Please send it to T.N.Baktha (address in the Box above)
Notification:
Please make your comments pertaining only to this Airworthiness Concern Sheet only.
Attachments: *SDR(s) *A/IDS *SL(s) X *SAIB *FAASR/*NTSBSR *AD(X) MOC *R
Notification: FAA X *AOPA X A Type Club X *TC Holder X Other: X
Response Date Requested 10/2/09 X(10 days) Alert (30 days) Information (90 days) (Space Bar Adds “X” to Check Boxes)
To:
Cessna Aircraft Company, ACE 113 Small Airplane Directorate
Subject: Airworthiness Concern Sheet concerning Cessna Models 525A
Cessna Aircraft Company has released a Mandatory Alert Service Letter ASL525A-78-01dated September,09 to prevent any damage to the rudder due to the in-flight departing of Thrust Attenuator Peddles There is a potential that this paddles could hit and damage the elevators. It is considered a safety of flight issue and could lead to a fatal accident.
The ACS is intended for Federal Aviation Administration (FAA) Aircraft Certification Office (ACO) Safety Engineers to convey known airworthiness (A/W) concerns to the aircraft owners/operators through Associations and Type Clubs. We request that you distribute this A/W concern to your membership for comments on technical and economic impact, if this Alert Service Letter is mandated by an Airworthiness Directive (AD).
Please provide your comments to this office by 10/25/09. If you have any questions, please contact T.N. Baktha at (316) 946-4155, or email to: t.n.baktha@faa.gov
*Service Difficulty Reports (SDRs); Accident/Incident Data System (A/IDS); Service Letter (SL); Special Airworthiness Information Bulletin (SAIB);
Federal Aviation Administration (FAA)/National Transportation Safety Board (NTSB) Safety Recommendation (FAASR/NTSBSR); Airworthiness Directive (AD); Alternate Method of Compliance (AMOC); Risk Assessment (RA); Aircraft Owners & Pilots Association (AOPA);
Experimental Aircraft Association (EAA); Type Certificate (TC)