United States Government Publishing Office publisher pbl distributor dst United States National Archives and Records Administration Office of the Federal Register author aut Government Organization text government publication eng FR Regulatory Information 1998_register executive 2010-09-24 article Proposed Rules D09002ee1bdff8efd D09002ee1bdff8f7a United States Department of Transportation originator org United States Government Agency or Subagency United States Federal Aviation Administration originator org United States Government Agency or Subagency This document proposes to adopt a new airworthiness directive (AD) that would apply to certain Mooney Aircraft Corporation (Mooney) Models M20J, M20K, M20M, and M20R airplanes. The proposed AD would require grinding the surface of the main landing gear (MLG) leg bracket, inspecting this area for cracks, and replacing any cracked MLG leg bracket. The proposed AD is the result of the manufacturing of several of the MLG leg brackets using laser pattern cutting. The brackets, when manufactured using this process, develop minor cracks at the bends, which could propagate over time. The actions specified by the proposed AD are intended to prevent failure of the MLG side brace bolt caused by cracking of the MLG leg bracket, which could result in MLG collapse with consequent loss of control of the airplane during taxi, takeoff, or landing operations. 63 FR 33016 https://www.govinfo.gov/app/details/FR-1998-06-17/98-16025 98-16025 fr17jn98-20 RIN 2120-AA64 4910-13-U Docket No. 98-CE-47-AD https://www.govinfo.gov/app/details/FR-1998-06-17/98-16025 https://www.govinfo.gov/content/pkg/FR-1998-06-17/html/98-16025.htm https://www.govinfo.gov/content/pkg/FR-1998-06-17/pdf/98-16025.pdf 2 p. 33016 33017 63 FR 33016 Title 14 Part 39 14 CFR Part 39 RIN 2120-AA64 Airworthiness Directives; Mooney Aircraft Corporation Models M20J, M20K, M20M, and M20R Airplanes; Federal Register Vol. 63, Issue PRORULE 98-16025 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 1998-08-21 Docket No. 98-CE-47-AD 4910-13-U 98-16025 Notice of proposed rulemaking (NPRM).

This document proposes to adopt a new airworthiness directive (AD) that would apply to certain Mooney Aircraft Corporation (Mooney) Models M20J, M20K, M20M, and M20R airplanes. The proposed AD would require grinding the surface of the main landing gear (MLG) leg bracket, inspecting this area for cracks, and replacing any cracked MLG leg bracket. The proposed AD is the result of the manufacturing of several of the MLG leg brackets using laser pattern cutting. The brackets, when manufactured using this process, develop minor cracks at the bends, which could propagate over time. The actions specified by the proposed AD are intended to prevent failure of the MLG side brace bolt caused by cracking of the MLG leg bracket, which could result in MLG collapse with consequent loss of control of the airplane during taxi, takeoff, or landing operations.

Comments must be received on or before August 21, 1998. Mr. Bob D. May, Aerospace Engineer, FAA, Airplane Certification Office, 2601 Meacham Boulevard, Fort Worth, Texas 76193-0150; telephone: (817) 222-5156; facsimile: (817) 222-5960. Vol. 63, no. 116 Office of the Federal Register, National Archives and Records Administration 1998-06-17 continuing daily deposited born digital 275 p. Table of Contents: AE 2.7: GS 4.107: AE 2.106: KF70.A2 https://www.govinfo.gov/app/details/FR-1998-06-17 P0b002ee180a62ff4 0097-6326 0042-1219 0364-1406 769-004-00000-9 000582072 f:fr17jn98 https://www.govinfo.gov/app/details/FR-1998-06-17 https://www.govinfo.gov/content/pkg/FR-1998-06-17/pdf/FR-1998-06-17.pdf fdlp 32965 33230 DGPO 2010-09-24 2023-05-06 FR-1998-06-17 machine generated eng FR FR-1998-06-17 63 116