Federal Aviation Administration November 7, 2012 – Federal Register Recent Federal Regulation Documents

Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbojet Engines
Document Number: 2012-27170
Type: Proposed Rule
Date: 2012-11-07
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd & Co KG (RRD) Spey 511-8 turbojet engines. This proposed AD was prompted by a recent quality review determination that bolts with reduced material properties may have been installed in some engines. This proposed AD would require inspection and replacement if necessary, of affected bolts, and if any bolt is found broken, inspection of the adjacent disc(s) for damage. We are proposing this AD to prevent uncontained turbine disc fracture and damage to the airplane.
Airworthiness Directives; Pratt & Whitney Canada Corp. Turboshaft Engines
Document Number: 2012-27169
Type: Proposed Rule
Date: 2012-11-07
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for certain serial number Pratt & Whitney Canada Corp. (P&WC) PW206B, PW206B2, PW206C, PW207C, PW207D, PW207D1, PW207D2, and PW207E turboshaft engines. This proposed AD was prompted by the discovery that certain power turbine (PT) disks were made to specific heat codes that may not achieve the maximum in-service life. This proposed AD would require re-identification of the PT disk to a part number (P/N) with a lower life limit. We are proposing this AD to prevent possible uncontained PT disk failure and loss of helicopter control.
Airworthiness Directives; Airbus Airplanes
Document Number: 2012-27142
Type: Proposed Rule
Date: 2012-11-07
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for all Airbus Model A330-200 Freighter, A330-200, A330-300, A340-200, A340- 300, A340-500, and A340-600 series airplanes. This proposed AD was prompted by several reports of a burning smell and/or smoke in the cockpit during cruise phase leading, in some cases, to diversion to alternate airports. This proposed AD would require an inspection to identify the installed windshields and replacement of any affected windshield. We are proposing this AD to prevent significantly increased workload for the flightcrew, which could, under some flight phases and/ or circumstances, constitute an unsafe condition.
Airworthiness Directives; The Boeing Company Airplanes
Document Number: 2012-27141
Type: Proposed Rule
Date: 2012-11-07
Agency: Federal Aviation Administration, Department of Transportation
We propose to supersede an existing airworthiness directive (AD) that applies to certain The Boeing Company Model 737-200, -200C, - 300, -400 and -500 series airplanes. The existing AD currently requires a one-time mid-frequency eddy current (MFEC) inspection, a low frequency eddy current (LFEC) inspection, and a detailed inspection for damage or cracking of stringer S-4L and S-4R lap joints and stringer clips between body station (BS) 540 and BS 727, and follow-on inspections and repair if necessary. Since we issued that AD, we have received reports of cracking of the lap joint lower row. This proposed AD would instead require repetitive external eddy current inspections for cracking of certain fuselage crown lap joints and corrective actions; internal eddy current and detailed inspections for cracking of certain fuselage crown lap joints, and repair if necessary; and detailed inspections of certain stringer clips, and replacement with new stringer clips if necessary. This proposed AD would also add airplanes to the applicability. We are proposing this AD to detect and correct cracking of the fuselage lap joints, which could result in sudden decompression of the airplane.
Airworthiness Directives; Airbus Airplanes
Document Number: 2012-27126
Type: Proposed Rule
Date: 2012-11-07
Agency: Federal Aviation Administration, Department of Transportation
We propose to supersede an existing airworthiness directive (AD) that applies to all Airbus Model A300 and A310 series airplanes; and Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called A300-600 series airplanes). The existing AD currently requires revising the Airworthiness Limitations section of the Instructions for Continued Airworthiness to incorporate new and revised structural inspections and inspection intervals. Since we issued that AD, Airbus has revised certain ALI documents, which require more restrictive maintenance requirements and airworthiness limitations. This proposed AD would revise the maintenance program to incorporate the limitations section. We are proposing this AD to prevent fatigue cracking, damage, or corrosion in principal structural elements, which could result in reduced structural integrity of the airplane.
Airworthiness Directives; Airbus Airplanes
Document Number: 2012-27125
Type: Proposed Rule
Date: 2012-11-07
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for certain Model A330-200, -300 and -200 Freighter series airplanes; and all Model A340-200 and -300 series airplanes. This proposed AD was prompted by a determination that the bonding lead from a certain isolation valve to a frame was too close to an electrical harness, which might cause chafing between the electrical harness and the associated bonding lead. This chafing could lead to a short circuit of the isolation valve and consequent non-closure of the isolation valve, which would prevent the air-flow to be shut-off in case of fire. This proposed AD would require modifying the bonding lead installation of the isolation valve. We are proposing this AD to prevent such chafing, which could result in non-closure of the isolation valve in the event of a fire and consequent damage to the airplane and injury to its occupants.
Airworthiness Directives; Airbus Airplanes
Document Number: 2012-27124
Type: Proposed Rule
Date: 2012-11-07
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for certain Airbus Model A310-203, -204, -222, -304, -322, and -324 airplanes. This proposed AD was prompted by a design review of the fuel tank access covers and analyses comparing compliance of the access covers to different tire burst models. `Type 21' panels located within the debris zone revealed that they could not sustain the impact of the tire debris. This proposed AD would require modifying the wing manhole surrounds and replacing certain fuel access panels. We are proposing this AD to prevent a possibility of a fire due to tire debris impact on the fuel access panels.
Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines
Document Number: 2012-27108
Type: Proposed Rule
Date: 2012-11-07
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd & Co KG (RRD) BR700-710 series turbofan engines. This proposed AD was prompted by service experience that demonstrated premature wear of the splined coupling on the fuel pump. This proposed AD would require replacement of the affected fuel pump splined couplings. We are proposing this AD to prevent failure of the engine and loss of the airplane.