ACRO E-mail Archive Thread: [IAC-L:107] NPRM for Pitts Longeron AD.
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Thread: [IAC-L:107] NPRM for Pitts Longeron AD.
Message: [IAC-L:107] NPRM for Pitts Longeron AD.
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From: "Dr. Guenther Eichhorn" <gei at head-cfa.harvard.edu>
Date: Tue, 17 Jun 1997 20:47:41 UTC
Here is the proposed new AD for the Pitts longerons. It would remove the 25 hour inspections and require a marked g-meter instead and a placard. The text is available on the IAC Web site at http://acro.harvard.edu/IAC Guenther ************************************************************* [Federal Register: May 30, 1997 (Volume 62, Number 104)] [Proposed Rules] [Page 29309-29312] >From the Federal Register Online via GPO Access [wais.access.gpo.gov] [DOCID:fr30my97-15] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. 97-CE-17-AD] RIN 2120-AA64 Airworthiness Directives; Aviat Aircraft Inc. Models S-2A, S-2B, and S-2S Airplanes (formerly Pitts Models S-2A, S-2B, and S-2S airplanes) AGENCY: Federal Aviation Administration, DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: This document proposes to supersede Airworthiness Directive (AD) 96-09-08 R1 applicable to certain Aviat [[Page 29310]] Aircraft Inc. (Aviat) Models S-2A, S-2B, and S-2S airplanes, which currently requires repetitively inspecting the upper longerons just aft of the rear cabane struts for cracks and repairing any cracks found. The proposed action would retain the same actions as the current AD, lengthen the time interval between repetitive inspections, require either installing a marked accelerometer in order to continue to perform acrobatic maneuvers and installing a placard that specifies gravity (``g'') force limitations; or, installing a placard prohibiting acrobatic maneuvers; and, require inserting revisions into the Airplane Flight Manual (AFM). The proposed AD is prompted by reports of cracking in the upper longerons and the availability of an improved design modification that, when incorporated, reinforces the upper longeron area. The actions specified by the proposed AD are intended to prevent cracking and subsequent failure of the airframe, resulting in possible loss of control of the airplane. DATES: Comments must be received on or before July 25, 1997. ADDRESSES: Submit comments in triplicate to the Federal Aviation Administration (FAA), Central Region, Office of the Assistant Chief Counsel, Attention: Rules Docket No. 97-CE-17-AD, Room 1558, 601 E. 12th Street, Kansas City, Missouri 64106. Comments may be inspected at this location between 8 a.m. and 4 p.m., Monday through Friday, holidays excepted. Service information that applies to the proposed AD may be obtained from Aviat Aircraft Inc., The Airport-Box No. 1240, 672 South Washington Street, Afton, Wyoming, 83110; telephone (307) 886-3151; facsimile (307) 886-9674. This information also may be examined at the Rules Docket at the address above. FOR FURTHER INFORMATION CONTACT: Roger Caldwell, Project Engineer, FAA, Denver Aircraft Certification Office, 26805 East 68th Ave., Room 214, Denver, Colorado 80216; telephone (303) 342-1086; facsimile (303) 342- 1088. SUPPLEMENTARY INFORMATION: Comments Invited Interested persons are invited to participate in the making of the proposed rule by submitting such written data, views, or arguments as they may desire. Communications should identify the Rules Docket number and be submitted in triplicate to the address specified above. All communications received on or before the closing date for comments, specified above, will be considered before taking action on the proposed rule. The proposals contained in this notice may be changed in light of the comments received. Comments are specifically invited on the overall regulatory, economic, environmental, and energy aspects of the proposed rule. All comments submitted will be available, both before and after the closing date for comments, in the Rules Docket for examination by interested persons. A report that summarizes each FAA-public contact concerned with the substance of this proposal will be filed in the Rules Docket. Commenters wishing the FAA to acknowledge receipt of their comments *** RETURNED MESSAGE TRUNCATED ***