Safety Rules & Regs

Air Safety Week, June 8, 2009

Airworthiness Directives; Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747SR, and 747SP. Final rule; correction. SUMMARY: The FAA is correcting typographical errors in an existing airworthiness directive (AD) that was published previously in the Federal Register. The error resulted in two incorrect paragraph references. This AD applies to certain Boeing Model 747-100, 747-100B, 747-100B SUD, 747-200B, 747-200C, 747-200F, 747-300, 747-400, 747-400D, 747-400F, 747SR, and 747SP series airplanes. This AD requires repetitive detailed inspections of the aft pressure bulkhead for indications of ''oil cans'' and previous oil can repairs at reduced compliance times, and corrective actions if necessary. DATES: Effective April 2, 2009.

Airworthiness Directives; Pratt & Whitney (PW) JT9D-7R4 Series Turbofan Engines; Correction. Final rule; correction. SUMMARY: The FAA is correcting airworthiness directive (AD) 2009-10-01, which was previously published in the Federal Register. That AD applies to PW JT9D-7R4 series turbofan engines. In the Federal Register, the AD number in the CFR citation of the headings section is incorrect. This document corrects that AD number. In all other respects, the original document remains the same. DATES: Effective May 18, 2009.

Airworthiness Directives; Bombardier Model CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600-2D15 (Regional Jet Series 705), and CL-600-2D24 (Regional Jet Series 900). Final rule; request for comments. SUMMARY: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: During testing, it was discovered that when the outflow valve (OFV) manual mode connector is not connected, the manual mode motor and altitude limitation are not properly tested. Consequently, a disconnect of the OFV manual mode and/or a related wiring failure could potentially result in a dormant loss of several CPC [cabin pressure control] backup/safety functions, including OFV manual control, altitude limitation, emergency depressurization and smoke clearance This AD requires actions that are intended to address the unsafe condition described in the MCAI. DATES: This AD becomes effective May 29, 2009. The Director of the Federal Register approved the incorporation by reference of certain publications listed in the AD as of May 29, 2009. We must receive comments on this AD by June 15, 2009.

Airworthiness Directives; Airbus Model A330-300, A340-200, and A340-300. Final rule; request for comments. SUMMARY: We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: Based on some recent in- service findings for fluid ingress and/or inner skin disbond damage on rudders which could result in reduced structural integrity of the rudder, AIRBUS decided to introduce some further structural inspections to specific rudder areas. This AD requires actions that are intended to address the unsafe condition described in the MCAI. DATES: This AD becomes effective June 4, 2009.

Airworthiness Directives; Boeing Model 747. Final rule; request for comments. SUMMARY: The FAA is superseding an existing airworthiness directive (AD) that applies to certain Boeing Model 747 airplanes. The existing AD currently requires modifying the inflation systems of the upper deck escape slides; single-piece off-wing escape ramps/slides; two-piece offwing escape slides; and door 1, 2, 4, and 5 escape slides/rafts; as applicable. This AD expands the applicability to include an additional airplane. This AD results from a report of 30- to 60-second delays in the inflation of escape slides/rafts. We are issuing this AD to prevent actuation delays in the inflation systems of the escape slides/rafts, which could result in delayed or failed deployment of escape slides/rafts during emergency evacuation of an airplane. DATES: This AD becomes effective June 4, 2009.

Airworthiness Directives; Hartzell Propeller Inc. Steel Hub Turbine Propellers AGENCY: Final Rule; request for comments. SUMMARY: The FAA is adopting a new airworthiness directive (AD) for Hartzell Propeller Inc. steel hub turbine propellers, with any counterweight slug attachment bolts, part number (P/N) B-3386-14H, LFC manufacturing lot 224, installed. This AD requires identifying and removing all counterweight slug attachment bolts, P/N B-3386- 14H, LFC manufacturing lot 224, from service and installing serviceable bolts. This AD results from two reports of failure of the bolts that attach the propeller blade counterweight slug, and separation of the counterweight slug which led to propeller vibration and damage to the propeller spinner. We are issuing this AD to prevent separation of the propeller blade counterweight slug, which could lead to injury and damage to the airplane. DATES: This AD becomes effective June 4, 2009. The Director of the Federal Register approved the incorporation by reference of certain publications listed in the regulations as of June 4, 2009. We must receive any comments on this AD by July 20, 2009.