Airworthiness Directives; Leonardo S.p.a. (Type Certificate Previously Held by Agusta S.p.A.) Helicopters
type: Action
additional type: https://schema.org/LegalForceStatus
description: The FAA is superseding Airworthiness Directive (AD) 2011-18-52 for certain Agusta S.p.A. (now Leonardo S.p.a.) Model AB139 and AW139 helicopters. AD 2011-18-52 required revising the life limit for certain part-numbered tail rotor (T/R) blades, updating the helicopter's historical records, repetitively inspecting each T/R blade for a crack or damage, and depending on the results, replacing the T/R blade. This AD was prompted by the manufacturer developing improved T/R blades using different materials and establishing life limits for each improved blade. This AD retains certain requirements from AD 2011-18- 52, revises certain requirements from AD 2011-18-52, and expands the applicability to include the newly-designed T/R blades. The FAA is issuing this AD to address the unsafe condition on these products.
date published: 2021-07-20
start time: 2021-08-24
agent: Federal Aviation Administration
  type: GovernmentOrganization
  parent organization: US Department of Transportation
object: Leonardo S.p.a. (Type Certificate Previously Held by Agusta S.p.A.)
citation: DigitalDocument
license: https://creativecommons.org/publicdomain/zero/1.0/
source: https://www.federalregister.gov/documents/2021/07/20/2021-15303/airworthiness-directives-leonardo-spa-type-certificate-previously-held-by-agusta-spa-helicopters
source organization: US Federal Register
publisher: AI Analytics

PropertyValue
property ID: Federal Register Document Number
value: 2021-15303

PropertyValue
property ID: Federal Register Citation
value: 86 FR 38218

PropertyValue
property ID: FAA Docket
value: Docket No. FAA-2021-0348

AI Analytics
type: Organization