Federal Aviation Administration April 6, 2007 – Federal Register Recent Federal Regulation Documents

Airworthiness directives: Sicma Aero Seat
Document Number: E7-6478
Type: Proposed Rule
Date: 2007-04-06
Agency: Federal Aviation Administration, Department of Transportation
Airworthiness directives: Empresa Brasileira de Aeronautica S.A. (EMBRAER)
Document Number: E7-6445
Type: Proposed Rule
Date: 2007-04-06
Agency: Federal Aviation Administration, Department of Transportation
Airworthiness Directives; General Electric Company CF34-1A, -3A, -3A1, -3A2, -3B, and -3B1 Turbofan Engines
Document Number: E7-6345
Type: Rule
Date: 2007-04-06
Agency: Federal Aviation Administration, Department of Transportation
The FAA is superseding an existing airworthiness directive (AD) for General Electric Company (GE) CF34-1A, -3A, -3A1, -3A2, -3B, and -3B1 turbofan engines. That AD requires a onetime inspection of certain fan disks for electrical arc-out indications, replacing fan disks with electrical arc-out indications, and reducing the life limit of certain fan disks. This AD requires the same reduced life limit of certain fan disks, but requires on-wing inspection of certain fan disks installed on regional jets within 500 flight hours after the effective date of this AD. This AD also requires more enhanced shop-level inspections of all fan disks for electrical arc-out defects. This AD results from a report that in January 2007, a CF34-3B1 turbofan engine experienced an uncontained fan disk failure during flight operation. We are issuing this AD to prevent an uncontained fan disk failure and airplane damage.
Experimental Permits for Reusable Suborbital Rockets
Document Number: E7-6194
Type: Rule
Date: 2007-04-06
Agency: Federal Aviation Administration, Department of Transportation
The Federal Aviation Administration (FAA) is amending its commercial space transportation regulations under the Commercial Space Launch Amendments Act of 2004. The FAA is establishing application requirements for an operator of a manned or unmanned reusable suborbital rocket to obtain an experimental permit. The FAA is also establishing operating requirements and restrictions on launch and reentry of reusable suborbital rockets operated under a permit.
Airworthiness Directives; Raytheon Aircraft Company Beech Models 45 (YT-34), A45 (T-34A, B-45), and D45 (T-34B) Airplanes
Document Number: 07-1715
Type: Rule
Date: 2007-04-06
Agency: Federal Aviation Administration, Department of Transportation
We are clarifying information contained in Airworthiness Directive (AD) 2007-06-01, which supersedes AD 62-24-01 and applies to all Raytheon Aircraft Company (RAC) Beech Models 45 (YT-34), A45 (T- 34A, B45), and D45 (T-34B) airplanes. AD 2007-06-01 currently requires you to repetitively inspect, using the eddy current method, the front and rear horizontal stabilizer spars for cracks and replace any cracked stabilizer. We inadvertently left out the language in this AD that required replacement of any horizontal stabilizer spar found cracked prior to further flight although the procedures in the appendix made reference to corrective action. The replacement information was contained in the notice of proposed rulemaking (NPRM). This document adds this information already proposed back into the AD. We are issuing this AD to prevent failure of the front and/or rear horizontal stabilizer spars caused by fatigue cracks. This failure could result in stabilizer separation and loss of control of the airplane.
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