Federal Aviation Administration October 8, 2008 – Federal Register Recent Federal Regulation Documents
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Airworthiness Directives; Boeing Model 737-100, -200, -200C, -300, -400, and -500 Series Airplanes
We propose to adopt a new airworthiness directive (AD) for all Boeing Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. For all airplanes, this proposed AD would require repetitive overhaul of the retract actuator beam of the main landing gear (MLG). For certain airplanes, this proposed AD would require repetitive inspections for damage of the retract actuator beam, and related investigative and corrective actions if necessary. This proposed AD results from reports of broken retract actuator beams of the MLG and the subsequent failure of the MLG to fully retract. We are proposing this AD to detect and correct broken retract actuator beams of the MLG, which could cause damage to the beam arm, hydraulic tubing, and flight control cables. Damage to the flight control cables could result in loss of control of the airplane.
Airworthiness Directives; Boeing Model 747 Airplanes
The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Boeing Model 747 airplanes. The existing AD currently requires repetitive inspections to detect evidence of wear damage in the area at the interface between the vertical stabilizer seal and fuselage skin, and corrective actions, if necessary. The existing AD also provides for an optional terminating action for the repetitive inspections. For all airplanes, this proposed AD would require doing repetitive inspections for wear damage and cracks of the fuselage skin in the interface area of the vertical stabilizer seal and fuselage skin, doing a detailed inspection for wear damage and cracks of the surface of any skin repair doubler in the area, and doing corrective actions. For airplanes on which the fuselage skin has been blended to remove wear damage, this proposed AD would require doing repetitive external detailed inspections or high frequency eddy current inspections for cracks of the blended area of the fuselage skin, and corrective actions if necessary. This proposed AD results from reports of wear damage on airplanes with fewer than 8,000 total flight cycles. In addition, there have been three reports of skin wear damage on airplanes that applied BMS 10-86 Teflon-filled coating (terminating action per AD 2002-26-15). We are issuing this AD to detect and correct wear damage and cracks of the fuselage skin in the interface area of the vertical stabilizer seal and fuselage skin in sections 46 and 48, which could cause in-flight depressurization of the airplane.
Airworthiness Directives; Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747SR, and 747SP Series Airplanes
We propose to adopt a new airworthiness directive (AD) for certain Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747- 200C, 747-200F, 747-300, 747-400, 747SR, and 747SP series airplanes. This proposed AD would require inspecting for skin cracks at the shear tie end fastener locations of the fuselage frames, and repair if necessary. This proposed AD results from a wide-spread fatigue damage assessment of Model 747 airplanes. We are proposing this AD to detect and correct cracks in the fuselage skin that can propagate and grow, resulting in a loss of structural integrity and a sudden decompression of the airplane during flight.
Establishment of Class E Airspace; Lexington, OK
This action confirms the effective date of the direct final rule that established Class E airspace at Muldrow Army Heliport, Lexington, OK, published in the Federal Register August 6, 2008 (73 FR 45607) Docket No. FAA-2008-0003.
Amendment of Class E Airspace; Black River Falls, WI
This action confirms the effective date of the direct final rule that amended Class E airspace at Black River Falls, WI, published in the Federal Register August 6, 2008 (73 FR 45606) Docket No. FAA- 2008-0024.
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