Federal Aviation Administration April 28, 2016 – Federal Register Recent Federal Regulation Documents
Results 1 - 5 of 5
Research, Engineering and Development Advisory Committee Meeting
The FAA is issuing this notice to advise the public of the Research, Engineering & Development Advisory Committee meeting.
Reduction of Remote Communications Outlets Used by Flight Service Stations in the Conterminous United States
The FAA is proposing to reduce the number of radio frequencies used by flight service stations to communicate with aircraft in flight. Under the proposal, six hundred and sixty-six (666) remote communications outlets (RCOs) will be decommissioned. Frequencies especially designated for emergency or military use are not included in this proposal. Frequencies in the state of Alaska are also not included in this proposal.
Amendment of Class E Airspace; Deer Lodge MT
This action corrects a final rule published in the Federal Register of March 29, 2016, amending Class E airspace extending upward from 700 feet above the surface at Deer Lodge-City-County Airport, Deer Lodge, MT. The FAA identified that the Class E airspace area extending upward from 1,200 feet above the surface was omitted from the Class E airspace description for the airport.
Airworthiness Directives; The Boeing Company Airplanes
We propose to supersede Airworthiness Directive (AD) 2012-22- 02, which applies to certain The Boeing Company Model 747-400, -400D, and -400F series airplanes. AD 2012-22-02 currently requires measuring the web at station (STA) 320 and, depending on findings, various inspections for cracks and missing fasteners, web and fastener replacement, and related investigative and corrective actions if necessary. Since we issued AD 2012-22-02, it was determined that there were no inspection or repair procedures included for airplanes with a STA 320 crown frame web thickness less than 0.078 inch, or greater than or equal to 0.084 inch and less than or equal to 0.135 inch. This proposed AD would require, for certain airplanes, replacement of the web, including related investigative and corrective actions if necessary. We are issuing this AD to prevent complete fracture of the crown frame assembly, and consequent damage to the skin. Such damage could result in in-flight decompression of the airplane.
Airworthiness Directives; The Boeing Company Airplanes
We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 737-400 series airplanes. This proposed AD was prompted by reports of cracks in the upper chord of the overwing stub beams at body station (STA) 578 emanating from the rivet location common to the crease beam inner chord and the overwing stub beam upper chord. This proposed AD would require repetitive inspections for cracking, and related investigative and corrective actions if necessary. Replacement of the overwing stub beam would terminate the repetitive inspections for cracking at the replacement location only, and post-replacement inspections would be required if the replacement was done. We are proposing this AD to detect and correct cracking in the upper chord of the overwing stub beam caused by high flight cycle fatigue stresses from both pressurization and maneuver loads. Cracking of the overwing stub beam could adversely affect the fuselage structural integrity and result in possible decompression of the airplane.
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