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2017-01-09
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Airworthiness Directives; Sikorsky Aircraft Model S-76B Helicopters
Proposed Rules
D09002ee1be06adf4
United States
Department of Transportation
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United States Government Agency or Subagency
This action withdraws a notice of proposed rulemaking (NPRM) that proposed a new airworthiness directive (AD), applicable to Sikorsky Aircraft Model S-76B helicopters. That action would have limited the applicability of the inspections of the left and right engine input drive shaft assemblies (shaft assemblies) for loose balance weights or cracks to those shaft assemblies of original (or initial) design only, and would have excluded redesigned shaft assemblies from those inspections. Since the issuance of the NPRM, the FAA has received a report of a fatigue crack in a redesigned shaft assembly indicating a need to continue the existing inspections of the redesigned shaft assembly. Accordingly, the proposed rule is withdrawn.
59 FR 0
https://www.govinfo.gov/app/details/FR-1994-11-02/94-27112
94-27112
fr02no94-29
4910-13-P
Federal Register: November 2, 1994
Docket No. 92-ASW-37
https://www.govinfo.gov/app/details/FR-1994-11-02/94-27112
https://www.govinfo.gov/content/pkg/FR-1994-11-02/html/94-27112.htm
1 p.
0
0
59 FR 0
Code of Federal Regulations
Title 14 Part 39
14 CFR Part 39
Airworthiness Directives; Sikorsky Aircraft Model S-76B Helicopters; Federal Register Vol. 59, Issue
PRORULE
94-27112
DEPARTMENT OF TRANSPORTATION
Federal Register: November 2, 1994
Docket No. 92-ASW-37
4910-13-P
94-27112
Proposed rule; withdrawal.
This action withdraws a notice of proposed rulemaking (NPRM) that proposed a new airworthiness directive (AD), applicable to Sikorsky Aircraft Model S-76B helicopters. That action would have limited the applicability of the inspections of the left and right engine input drive shaft assemblies (shaft assemblies) for loose balance weights or cracks to those shaft assemblies of original (or initial) design only, and would have excluded redesigned shaft assemblies from those inspections. Since the issuance of the NPRM, the FAA has received a report of a fatigue crack in a redesigned shaft assembly indicating a need to continue the existing inspections of the redesigned shaft assembly. Accordingly, the proposed rule is withdrawn.
Mr. Terry Fahr, Aerospace Engineer, Boston Aircraft Certification Office, ANE-153, FAA, Engine and Propeller Directorate, 12 New England Executive Park, Burlington, Massachusetts 01803, telephone (617) 238-7155, fax (617) 238-7199.
Federal Register
Vol. 59, no. 211
Office of the Federal Register, National Archives and Records Administration
1994-11-02
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