Federal Aviation Administration April 29, 2011 – Federal Register Recent Federal Regulation Documents
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Airworthiness Directives; Hawker Beechcraft Corporation Models B300 and B300C (C-12W) Airplanes
We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD would require inserting an update to the performance charts in the FAA-approved airplane flight manual and the pilot's operating handbook, part number (P/N) 130- 590031-245. This proposed AD was prompted by an error found in the take-off speeds and field lengths published in the FAA-approved airplane flight manual. We are proposing this AD to correct the published data in the airplane flight manual and the pilot's operating handbook and ensure it corresponds with the published data in the pilot's checklist. This condition, if not corrected, could result in a pilot taking off from shorter runways than required by the airplane if the airplane loses an engine after takeoff decision speed (V1). This could result in the airplane running out of runway before take-off can be accomplished.
Airworthiness Directives; Burl A. Rogers (Type Certificate Previously Held by William Brad Mitchell and Aeronca, Inc.) Models 15AC and S15AC Airplanes
This document extends the period for public comment on the above-referenced NPRM. The proposed AD would require repetitive inspections of the upper and lower main wing spar cap angles for cracks and/or corrosion and installing inspection access panels. The proposed AD would also require replacing the wing spar cap angles if moderate or severe corrosion is found and applying corrosion inhibitor. The proposed AD was prompted by reports of intergranular exfoliation and corrosion of the upper and/or lower wing main spar cap angles found on the affected airplanes. We are proposing this AD to detect and correct cracks, intergranular exfoliation and corrosion in the wing main spar cap angles, which could result in reduced strength of the wing spar and the load carrying capacity of the wing. This could lead to wing failure and consequent loss of control. This extension of the comment period is necessary to assure that all interested persons have ample opportunity to present their views on the proposed requirements of the NPRM.
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