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Federal Register Highlights – 5/30/13

May 30, 2013

Unpublished, time-sensitive and proposed rules for May 30, 2013:

RULE: We are adopting a new airworthiness directive (AD) for all Airbus Model A300 B4–601, B4–603, B4–620, B4–605R, and B4–622R airplanes. This AD was prompted by a report that the door frame shells of passenger doors 2 and 4 may not have sufficient structural strength to enable the airplane to operate safely. This AD requires reinforcing the door frame shells of passenger doors 2 and 4 on both sides of the fuselage. We are issuing this AD to prevent structural failure of the door frame shells, which could result in in-flight decompression of the airplane and consequent injury to passengers. This AD becomes effective July 5, 2013.

RULE: We are adopting a new airworthiness directive (AD) for all Airbus Model A330–200 Freighter, A330–200, A330–300, A340–200, A340–300, A340–500, and A340–600 series airplanes. This AD was prompted by several reports of a burning smell and/or smoke in the cockpit during cruise phase leading, in some cases, to diversion to alternate airports. This AD requires an inspection to identify the installed windshields and replacement of any affected windshield. We are issuing this AD to prevent significantly increased workload for the flightcrew, which could, under some flight phases and/or circumstances, constitute an unsafe condition. This AD becomes effective July 5, 2013.

RULE: We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL–215–1A10 and CL–215–6B11 (CL–215T Variant) airplanes. This AD requires repetitive detailed inspections for cracking of the left-hand (LH) and right-hand (RH) wing lower skin, and repair if necessary. This AD also provides terminating action for the repetitive detailed inspections. This AD was prompted by reports of a fractured wing lower rear spar cap and reinforcing strap. We are issuing this AD to detect and correct cracked wing structure, which could result in failure of the wing. This AD becomes effective June 14, 2013.

RULE: We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company Model 500, 501, 550, 551, S550, 560, 560XL, and 650 airplanes. This AD was prompted by multiple reports of smoke and/or fire in the tailcone caused by sparking due to excessive wear of the brushes in the air conditioning (A/C) motor. This AD requires inspecting to determine if certain A/C compressor motors are installed and to determine the accumulated hours on certain A/C drive motor assemblies; repetitive replacement of the brushes in the drive motor assembly, or, as an option to the brush replacement, deactivation of the A/C system and placard installation; and return of replaced brushes to Cessna. We are issuing this AD to prevent the brushes in the A/C motor from wearing down beyond their limits, which could result in the rivet in the brush contacting the commutator causing sparks and consequent fire and/or smoke in the tailcone with no means to detect or extinguish the fire and/or smoke. This AD is effective July 5, 2013.

 

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