Summary
The FAA proposes to adopt a new airworthiness directive (AD) for type certificated Model UH-1H restricted category helicopters. This proposed AD was prompted by multiple reports of failure of the main driveshaft. This proposed AD would require establishing a life limit for certain main driveshafts, and a one-time and repetitive inspections of the main driveshafts. The FAA is proposing this AD to address the unsafe condition on these products.
Directive Details
AD Number
FAA-2021-0189
Document Number
2021-05561
Type
Proposed Rule
Publication Date
March 26, 2021
Comments Close
May 10, 2021
Affected Manufacturer
Various Restricted Category
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2021-0189
Topics
Official Documents
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