Airworthiness Directives; McCauley Propeller Systems Propeller Assemblies Models 2D34C53/74E-X; D2A34C58/90AT-X; 3AF32C87/82NC-X; D3AF32C87/82NC-X; D3A32C88/82NC-X; D3A32C90/82NC-X; and 3AF34C92/90LF-X.
airworthiness · Rule · Final rule; request for comments. · Published 2005-11-30 · Effective 2005-12-15 · 70 FR 71753
Document
Document number
05-23430
Federal Register citation
70 FR 71753
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
McCauley
Publication date
2005-11-30
Effective date
2005-12-15
FAA docket
Docket No. FAA-2005-22731
Abstract
The FAA is adopting a new airworthiness directive (AD) for McCauley Propeller Systems propeller assemblies, models 2D34C53/74E-X; D2A34C58/90AT-X; 3AF32C87/82NC-X; D3AF32C87/82NC-X; D3A32C88/82NC-X; D3A32C90/82NC-X; and 3AF34C92/90LF-X. This AD requires, within 10 flight hours or 10 days after the effective date of this AD, whichever occurs first, removing certain serial number propeller hubs from service. This AD results from a report by the manufacturer that they manufactured and released 40 propeller hubs with improperly machined socket retention threads. We are issuing this AD to prevent cracked propeller hubs, which could cause failure of the propeller hub, blade separation, and loss of control of the airplane.