Additional Types of Child Restraint Systems That May Be Furnished and Used on Aircraft; Corrections
The Federal Aviation Administration published a final rule in the Federal Register on July 14, 2006 (71 FR 40003). The final rule allowed the use of child restraint systems that the FAA approves under the aviation standards of Technical Standard Order C-100b, Child Restraint Systems, or under its certification regulations regarding the approval of materials, parts, processes, and appliances. That final rule contained two non-substantive typographical errors in the rule text of two sections. This document corrects the final regulations by revising these sections.
Airworthiness Directives; Boeing Model 737 Airplanes
The FAA is adopting a new airworthiness directive (AD) for all Boeing Model 737 airplanes. This AD requires repetitive measurement of the freeplay of both aileron balance tabs; repetitive lubrication of the aileron balance tab hinge bearings and rod end bearings; and related investigative and corrective actions if necessary. This AD results from reports of freeplay-induced vibration of the aileron balance tab. The potential for vibration of the control surface should be avoided because the point of transition from vibration to divergent flutter is unknown. We are issuing this AD to prevent excessive vibration of the airframe during flight, which could result in loss of control of the airplane.
Airworthiness Directives; Raytheon (Beech) Model 400, 400A, and 400T Series Airplanes; and Raytheon (Mitsubishi) Model MU-300 Airplanes
The FAA is adopting a new airworthiness directive (AD) for all Raytheon (Beech) Model 400, 400A, and 400T series airplanes; and Raytheon (Mitsubishi) Model MU-300 airplanes. This AD requires revising the airplane flight manual to modify the Operating Limitations, Abnormal Procedures, and Normal Procedures, as applicable, for flight in icing conditions. This AD results from multiple reports of high- altitude, dual-engine flameouts on airplanes operating in certain meteorological conditions. We are issuing this AD to advise the flightcrew that the buildup of ice on certain internal areas of the engine could result in a dual-engine flameout and what action they must take to avoid this hazard.
Airworthiness Directives; Fuji Heavy Industries, Ltd. FA-200 Series Airplanes
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. We are issuing this AD to require actions that are intended to address the unsafe condition described in the MCAI.
Establishment of Class E Airspace; Kokohanok, AK
This action establishes Class E airspace at Kokohanok, AK to provide adequate controlled airspace to contain aircraft executing new Standard Instrument Approach Procedures (SIAPs) and a new Departure Procedure (DP). This rule results in new Class E airspace established upward from 700 feet (ft) and 1,200 ft. above the surface at Kokohanok, AK.