Proposed AD - Failure of Tailboom Attaching Points

FEDERAL REGISTER LINK TO MAKE COMMENTS

Action

Notice of proposed rulemaking (NPRM).

Summary

The FAA proposes to adopt a new airworthiness directive (AD) for various helicopters operating under experimental airworthiness certificates and various type certificated restricted category helicopters. This proposed AD was prompted by multiple accidents and incidents involving failure of the tail boom attachment structure and bolts. This proposed AD would require revising the Rotorcraft Flight Manual (RFM) for your helicopter to incorporate pre-flight checks; removing paint and sealant, and cleaning; repetitive inspections of structural components that attach the tail boom to the fuselage; and depending on the outcome of the inspections, repairing or replacing components, or re-bonding the structure. The FAA is proposing this AD to address the unsafe condition on these products.

Dates

The FAA must receive comments on this proposed AD by December 16, 2019.

Addresses

You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods:

  • Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.

  • Fax: 202-493-2251.

  • Mail: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.

  • Hand Delivery: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays.

For AST, Inc. service information identified in this NPRM, contact: AST, Inc., 34976 Kamph Drive NE, Albany, OR 97322.

For JJASPP Engineering Services, LLC service information identified in this NPRM, contact: JJASPP Engineering Services, LLC, 511 Harmon Terrace, Arlington, TX 76010; phone: (817) 465-4495; website: www.jjaspp.com.

For Northwest Rotorcraft, LLC service information identified in this NPRM, contact: Northwest Rotorcraft, LLC, 1000 85th Ave. SE, Olympia, WA 98501; phone: (360) 754-7200; website: www.nwhelicopters.com.

For Richards Heavylift Helo, Inc., service information identified in this NPRM, contact: Richards Heavylift Helo, Inc., 1181 Osprey Nest Point, Orange Park, FL 32073.