Airworthiness Directives; Mitsubishi Model YS-11 Airplanes, and Model YS-11A-200, YS-11A-300, YS-11A-500, and YS-11A-600 Series Airplanes
airworthiness · Rule · Final rule. · Published 2005-11-01 · Effective 2005-12-06 · 70 FR 65827
Document
Document number
05-21543
Federal Register citation
70 FR 65827
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Mitsubishi Model YS-11
Publication date
2005-11-01
Effective date
2005-12-06
FAA docket
Docket No. 98-NM-300-AD
Abstract
This amendment adopts a new airworthiness directive (AD), applicable to certain Mitsubishi Model YS-11 airplanes, and Model YS- 11A-200, YS-11A-300, YS-11A-500, and YS-11A-600 series airplanes. This AD requires repetitive removal of the spinner; repetitive detailed inspections of the propeller hub to detect fatigue cracking; and replacement of a propeller hub with a new propeller hub, if necessary. This action is necessary to detect and correct fatigue cracking of the propeller hub, which could cause the loss of the propeller. This action is intended to address the identified unsafe condition.