Department of Transportation October 25, 2012 – Federal Register Recent Federal Regulation Documents

We propose to adopt a new airworthiness directive (AD) for certain Pratt & Whitney Canada Corp. (P&WC) PT6C-67C turboshaft engines. This proposed AD was prompted by five reported incidents of second stage power turbine (PT) disk damage. This proposed AD would require initial and repetitive borescope inspections to verify the presence of a retaining ring securing the PT baffle located near the second stage PT disk. If the engine fails the inspection, this proposed AD would also require removing the engine from service before further flight. We are proposing this AD to prevent damage to the PT disk which, if undetected, could cause uncontained PT disk failure and loss of control of the helicopter.

We propose to adopt a new airworthiness directive (AD) for all Airbus Model A330-200 Freighter, -200, and -300 series airplanes; and Model A340-200, -300, -500, and -600 series airplanes. This proposed AD was prompted by a report that erroneous height indication by one radio altimeter with engaged flare and retard mode, in case of go-around, might lead to a temporary loss of airplane longitudinal control. This proposed AD would require revising the airplane flight manual. We are proposing this AD to ensure that the flightcrew applies the appropriate operational procedures in the event of an erroneous indication of the radio altimeter, which could result in temporary loss of airplane longitudinal control.

The Department is correcting a notice of proposed rulemaking (NPRM) published in the Federal Register. In that document, the Department proposed, among other modifications, to change the Uniform Report of DBE Commitments/Awards and Payments form found in our regulations. As this is an information collection covered by the Paperwork Reduction Act (PRA), the Department should have included a discussion of this collection in the ``Paperwork Reduction Act'' section of the NPRM in order to comply with the PRA's procedural requirements. Today, the Department is correcting this omission by including discussion of the Uniform Report collection and providing the public with 60 days from today to comment both on this collection and all other aspects of the NPRM. Thus, the original end of the comment period, November 5, 2012, has been extended until December 24, 2012.