AD 2025-17026
Published 2025-09-05 · 10 models · 187 US-registered tails affected · Federal Register
Airworthiness Directives; MD Helicopters, LLC Federal Register ↗
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain MD Helicopters, LLC, Model 369 (Army YOH-6A), 369A (Army OH- 6A), 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, 500N, and 600N helicopters. This AD was prompted by multiple reports of cracked tail rotor (T/R) pedal support brackets. This AD requires repetitively inspecting certain part-numbered T/R pedal support brackets and depending on the results, replacing the T/R pedal support bracket or refinishing any exposed areas. This AD also prohibits installing certain part-numbered T/R pedal support brackets. The FAA is issuing this AD to address the unsafe condition on these products.
Applicability · by US fleet size
Federal Register text
Verbatim; the Federal Register publication is the legally binding document. Cite: 90 FR 42807. View on Federal Register ↗
[Federal Register Volume 90, Number 170 (Friday, September 5, 2025)] [Rules and Regulations] [Pages 42807-42812] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: 2025-17026]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2024-2009; Project Identifier AD-2023-01286-R; Amendment 39-23121; AD 2025-17-11] RIN 2120-AA64
Airworthiness Directives; MD Helicopters, LLC
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for certain MD Helicopters, LLC, Model 369 (Army YOH-6A), 369A (Army OH- 6A), 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, 500N, and 600N helicopters. This AD was prompted by multiple reports of cracked tail rotor (T/R) pedal support brackets. This AD requires repetitively inspecting certain part-numbered T/R pedal support
[[Page 42808]]
brackets and depending on the results, replacing the T/R pedal support bracket or refinishing any exposed areas. This AD also prohibits installing certain part-numbered T/R pedal support brackets. The FAA is issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective October 10, 2025. The Director of the Federal Register approved the incorporation by reference of certain publications listed in this AD as of October 10, 2025.