airworthiness · Rule · Final rule. · Published 2012-07-30 · Effective 2012-09-04 · 77 FR 44437
Document
Document number
2012-17957
Federal Register citation
77 FR 44437
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Embraer S.A.
Publication date
2012-07-30
Effective date
2012-09-04
FAA docket
Docket No. FAA-2011-1251
Abstract
We are adopting a new airworthiness directive (AD) for all Embraer S.A. Model ERJ 190 airplanes. This AD was prompted by a report of damage on the rod end of the retracting actuator rod of the main landing gear (MLG). This AD requires performing a one-time general visual inspection to determine if a certain part number is installed on the MLG retraction actuator; if necessary, performing a general visual inspection for discrepancies between the actuator rod end and shock strut lug of the MLG retraction actuator; and corrective actions if necessary. We are issuing this AD to detect and correct breakage of the MLG retracting actuator rod, which may result in MLG extension with no hydraulic damping and consequent damage to the locking mechanism and collapse of the MLG.