AD 2024-23547

Published 2024-10-11 · 5 models · 38 US-registered tails affected · Federal Register

Airworthiness Directives; Columbia Helicopters, Inc., and Restricted Category Model CH-47D Helicopters Federal Register ↗

Abstract

The FAA is adopting a new airworthiness directive (AD) for Columbia Helicopters, Inc., Model 234 helicopters and restricted category Model CH-47D helicopters. This AD was prompted by two reports of a flight control rigid connecting link (link) failure, due to a manufacturing defect. This AD requires removing certain links from service and prohibits installing those links. The FAA is issuing this AD to address the unsafe condition on these products.

Applicability · by US fleet size

BOEING CH-47D 22 tails
BOEING HELICOPTERS CH-47D 6 tails
BILLINGS FLYING SERVICE CH-47D 6 tails
COLUMBIA HELICOPTERS CH-47D TCDS R00051SE 3 tails
UNKNOWN UNKNOWN 1 tails

Federal Register text

Verbatim; the Federal Register publication is the legally binding document. Cite: 89 FR 82496. View on Federal Register ↗

[Federal Register Volume 89, Number 198 (Friday, October 11, 2024)] [Rules and Regulations] [Pages 82496-82498] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 2024-23547]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2024-2329; Project Identifier AD-2024-00451-R; Amendment 39-22864; AD 2024-20-05] RIN 2120-AA64

Airworthiness Directives; Columbia Helicopters, Inc., and Restricted Category Model CH-47D Helicopters

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for Columbia Helicopters, Inc., Model 234 helicopters and restricted category Model CH-47D helicopters. This AD was prompted by two reports of a flight control rigid connecting link (link) failure, due to a manufacturing defect.

[[Page 82497]]

This AD requires removing certain links from service and prohibits installing those links. The FAA is issuing this AD to address the unsafe condition on these products.

DATES: This AD is effective October 28, 2024. The FAA must receive comments on this AD by November 25, 2024.

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 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: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA-2024-2329; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, any comments received, and other information. The street address for Docket Operations is listed above. Related Material: For Boeing material identified in this AD, contact Billings Flying Service, Inc., 309 Jellison Road, Billings, MT 59101; phone: (406) 252-6937; email: jed@flybfscom.

FOR FURTHER INFORMATION CONTACT: David Herron, Aviation Safety Engineer, FAA, 3960 Paramount Boulevard, Lakewood, CA 90712; phone: (206) 231-3544; email: [email protected].