Federal Aviation Administration May 29, 2014 – Federal Register Recent Federal Regulation Documents
Results 1 - 5 of 5
Airworthiness Directives; The Boeing Company Airplanes
We propose to supersede Airworthiness Directive (AD) 2012-13- 08, which applies to certain The Boeing Company Model 747-100, 747- 100B, 747-200B, 747-200C, 747-200F, 747-400F, 747SR, and 747SP series airplanes, without a stretched upper deck or stretched upper deck modification. AD 2012-13-08 currently requires repetitive inspections of tension ties and surrounding structure for cracking, additional inspections for certain airplanes, and related investigative and corrective actions if necessary. AD 2012-13-08 also currently requires modification of tension tie structure or tension tie and frame structure at specified stations, a post-modification inspection of any modified area for cracking, repetitive inspections for cracking in the unmodified areas of the tension tie structure and frame structure at certain stations, and repair if necessary. Since we issued AD 2012-13-08, the manufacturer conducted a widespread fatigue damage analysis and determined that additional inspections are necessary. This proposed AD would add, for certain airplanes, surface high frequency eddy current (HFEC) inspections for cracking in unmodified center section tension ties, and repair if necessary; repetitive post- modification eddy current inspections for cracking of modified and unmodified areas, and repair if necessary; a new modification (replacement) of tension tie and frame structures; and repetitive inspections of tension ties and surrounding structure for cracking, and related investigative and corrective actions if necessary. This proposed AD also reduces an inspection interval. We are proposing this AD to prevent tension ties from becoming severed or disconnected from the frames, which could lead to reduced structural integrity and sudden decompression of the airplane in flight.
Airworthiness Directives; The Boeing Company Airplanes
We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model DC-9-10, DC-9-20, and DC-9-30 series airplanes. This proposed AD was prompted by an evaluation by the design approval holder (DAH) indicating that the improved (shot-peened) aft fuselage non-ventral pressure bulkhead tee is subject to widespread fatigue damage (WFD). This proposed AD would require repetitive inspections for cracking of the improved (shot-peened) non-ventral aft pressure bulkhead tees, and replacement if necessary. We are proposing this AD to detect and correct fatigue cracking of the improved (shot- peened) non-ventral aft pressure bulkhead dome tees connecting the bulkhead web to the fuselage, which could result in reduced structural integrity and rapid decompression of the airplane.
Airworthiness Directives; Bombardier, Inc. Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, Model CL-600-2D24 (Regional Jet Series 900) airplanes, and Model CL-600-2E25 (Regional Jet Series 1000) airplanes. This proposed AD was prompted by a report that certain parts of the aft baggage door did not conform to the design specifications and were of degraded strength. This proposed AD would require repetitive inspections for cracking and deformations of certain stop fittings and striker plates of the aft baggage bay door; and replacement, which would terminate the repetitive inspections. We are proposing this AD to prevent cracking and deformations of certain stop fittings and striker plates, which may result in the opening of the aft baggage bay door and rapid decompression or reduced controllability of the airplane.
Airworthiness Directives; Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Lockheed Martin Corporation/Lockheed Martin Aeronautics Company Model L-1011 series airplanes. This proposed AD was prompted by reports of cracked rib cap castellations. This proposed AD would require repetitive inspections for castellation and skin clips cracked or damaged between stringers and cracked stringer clips of the wing box pylon back-up structure, and front spar to rear spar, repetitive inspections for cracking, damage, or failure of the pylon back-up torque box structure; repetitive inspections for cracking or damage of the wing box external areas at the drag brace aft wing fitting; and repetitive inspections of the outer surface of the wing upper and lower skins for cracks or damage along the rib attachment at the fastener holes and between the two rows of attachment; and corrective actions if necessary. We are proposing this AD to detect and correct cracked or damaged rib cap castellations, which could degrade the structural capabilities of the airplane.
Order Limiting Scheduled Operations at John F. Kennedy International Airport
This action grants with conditions a limited waiver of the slot usage requirement for operating authorizations (slots) at John F. Kennedy International Airport (JFK) due to construction at the airport during the winter 2014/2015 and summer 2015 scheduling seasons. This waiver applies only to JFK slots for the period from March 1, 2015, through October 24, 2015.
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