AD 2010-26-05

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: \n\n\tDuring maintenance on one aircraft, it was discovered that the overpressure capsules were broken on both pressurization valves. Failure of the pressurization control regulating valve (overpressure capsule) will affect the aircraft's overpressure protection * * *. \n\n* * * * *\n\n\tThe unsafe condition is overpressurization, which can result in injury to the occupants and possible structural failure leading to loss of control of the airplane. We are issuing this AD to require actions to correct the unsafe condition on these products.

Final rule.

2010-26-05 DASSAULT AVIATION: Amendment 39-16544. Docket No. FAA- 2009-0864; Directorate Identifier 2008-NM-202-AD. \n\nEffective Date \n\n\t(a) This airworthiness directive (AD) becomes effective January 25, 2011. \n\nAffected ADs \n\n\t(b) None. \n\nApplicability \n\n\t(c) This AD applies to the airplanes identified in paragraphs (c)(1) and (c)(2) of this AD, certificated in any category. \n\n\t(1) DASSAULT AVIATION Model Falcon 10 airplanes, Model FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G airplanes, and Model MYSTERE-FALCON 20-C5, 20-D5, 20-E5, and 20-F5 airplanes; all serial numbers, equipped with Liebherr or ABG-Semca pressurization outflow valves. \n\n\t(2) DASSAULT AVIATION Model MYSTERE-FALCON 200 airplanes, \n\n\tModel MYSTERE-FALCON 50 and MYSTERE-FALCON 900, and FALCON 900EX airplanes, and Model FALCON 2000 and FALCON 2000EX airplanes; all serial numbers. \n\nSubject \n\n\t(d) Air Transport Association (ATA) of America Code 21: Air Conditioning. \n\nReason \n\n\t(e) The mandatory continuing airworthiness information (MCAI) states: \n\n\tDuring maintenance on one aircraft, it was discovered that the overpressure capsules were broken on both pressurization valves. Failure of the pressurization control regulating valve (overpressure capsule) will affect the aircraft's overpressure protection * * *. \n\n* * * * *\n\nThe unsafe condition is overpressurization, which can result in injury to the occupants and possible structural failure leading to loss of control of the airplane. \n\nCompliance \n\n\t(f) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. \n\nInspection and Replacement \n\n\t(g) Unless already done, do the following actions. \n\n\t(1) Within 6 months after the effective date of this AD, or before reaching the applicable time in the "Inspection Threshold'' column specified in Table 1 of this AD, whichever occurs later, and thereafter at intervals not to exceed the applicable time in the "Inspection Interval'' column specified in Table 1 of this AD: Inspect for overpressure tightness on both regulating valves using a method approved by either the Manager, International Branch, ANM- 116, Transport Airplane Directorate, FAA; or the European Aviation Safety Agency (EASA) (or its delegated agent). \n\n\n\tTable 1--Compliance Times \n\n\nAffected Airplanes\n\nInspection Threshold (whichever occurs later) \nInspection Interval\nModel FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G airplanes, and Model MYSTERE-FALCON 20-C5, 20-D5, 20-E5, and 20-F5 airplanes equipped with Liebherr or ABG-Semca valves part number (P/N) 209xx0xxx0x;\n\n\n\nModel MYSTERE-FALCON 200 airplanes; \n\n\n\nModel Falcon 10 airplanes, equipped with Liebherr or ABG-Semca valves P/N 209xx0xxx0x\nPrior to the accumulation of 1,250 total flight hours on the regulating valve since new \nWithin 1,250 flight hours after the valve was cleaned in accordance withthis AD\n1,250 flight hours\nModel MYSTERE-FALCON 50 airplanes, Model MYSTERE-FALCON 900, FALCON 900EX (including "F900EX-EASy" and "F900DX") Model FALCON 2000, and FALCON 2000EX (including "F2000EX-EASy" and "F2000DX") airplanes\nPrior to the accumulation of 1,640 total flight hours on the regulating valve since new\nWithin 1,640 flight hours after the valve was cleaned in accordance with this AD\n1,640 flight hours\n\n\tNote 1: Guidance on inspecting for overpressure tightness on both regulating valves can be found in the applicable airplane maintenance manual identified in Table 2 of this AD. \n\n\tTable 2--Maintenance Manual Guidance \n\n\nFor Affected Airplanes -\nSee Dassault Maintenance Procedure - \nIn Maintenance Manual -\nModel Falcon 10 airplanes, equipped with Liebherr or ABG-Semca valves P/N 209xx0xxx0x\n21-32-01, dated July 2009\nDassault Falcon 10 Maintenance Manual \nModel FALCON 900EX (including "F900EX-EASy" and "F900DX") airplanes \n21-314, dated September 2008\nDassault Falcon 900EX EASy Maintenance Manual\nModel FALCON 2000 and FALCON 2000EX (including "F2000EX-EASy") airplanes\n21-314, dated November 2008\nDassault Falcon 2000 Maintenance Manual\nModel FALCON F2000DX airplanes\n21-314, dated November 2008\nDassault Falcon 2000DX Maintenance Manual\nModel FAN JET FALCON, FAN JET FALCON SERIES C, D, E, F, and G airplanes, \nMYSTERE-FALCON 20-C5, 20-D5, \n20-E5, and 20-F5 airplanes; equipped with Liebherr or ABG-Semca valves part number (P/N) 209xx0xxx0x\n21-31-10, dated October 2008\nDassault Fan Jet Falcon Maintenance Manual\nModel MYSTERE-FALCON 50 airplanes\n21-160, dated January 2010\nDassault Falcon 50/50EX Maintenance Manual \nModel MYSTERE-FALCON 200 airplanes\n051.0, dated December 2008\nDassault Falcon 200 Maintenance Manual\nModel MYSTERE-FALCON 900 airplanes\n21-308, dated October 2008\nDassault Falcon 900 Maintenance Manual \n\n\t(2) If any leak is found during any inspection required by paragraph (g)(1) of this AD, before further flight, replace the affected valve with a serviceable unit, using a method approved by either the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; or the EASA (or its delegated agent). \n\n\tNote 2: Guidance on replacing regulating valves can be found in the applicable airplane maintenance manual identified in Table 2 of this AD. \n\nFAA AD Differences \n\n\tNote 3: This AD differs from the MCAI as follows: Although paragraph (3) of the compliance section of the MCAI allows flight in accordance with the master minimum equipment list (MMEL) provisions after leaks are found, paragraph (g)(2) of this AD requires replacing affected valves before further flight. \n\nOther FAA AD Provisions \n\n\t(h) The following provisions also apply to this AD: \n\n\t(1) Alternative Methods of Compliance (AMOCs): The Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14CFR 39.19. Send information to ATTN: Tom Rodriguez, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 227-1137; fax (425) 227-1149. Before using any approved AMOC on any airplane to which the AMOC applies, notify your principal maintenance inspector (PMI) or principal avionics inspector (PAI), as appropriate, or lacking a principal inspector, your local Flight Standards District Office. \n\nThe AMOC approval letter must specifically reference this AD. \n\n\t(2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it is returned to service. \n\n\t(3) Reporting Requirements: A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB Control Number. The OMB Control Number for this information collection is 2120-0056. Public reporting for this collection of information is estimated to be approximately 5 minutes per response, including the time for reviewing instructions, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at: 800 Independence Ave., SW., Washington, DC 20591, Attn: Information Collection Clearance Officer, AES-200. \n\nRelated Information \n\n\t(i) Refer to MCAI EASA Airworthiness Directive 2008-0072, dated April 18, 2008, for related information. \n\nMaterial Incorporated by Reference \n\n\t(j) None.

Discussion \n\n\tWe issued a supplemental notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to include an AD that would apply to the specified products. That supplemental NPRM was published in the Federal Register on July 27, 2010 (75 FR 43878). That supplemental NPRM proposed to correct an unsafe condition for the specified products. The MCAI states: \n\n\tDuring maintenance on one aircraft, it was discovered that the overpressure capsules were broken on both pressurization valves. Failure of the pressurization control regulating valve (overpressure capsule) will affect the aircraft's overpressure protection, possibly resulting in a structural failure in case of combination with another pressurization system failure. Consequently, Dassault Aviation has developed a repetitive check of this outflow valve capsule, which has already been introduced into the Maintenance of Components section (chapter 5-20) of the relevant Aircraft Maintenance Manuals(AMMs). \n\n\tFor the reason described above, this EASA (European Aviation Safety Agency) Airworthiness Directive (AD) requires a repetitive check of the outflow valve overpressure capsule, as it will also be introduced into the Airworthiness Limitations section (chapter 5-40) of the respective AMMs. \n\nThe unsafe condition is overpressurization, which can result in injury to the occupants and possible structural failure leading to loss of control of the airplane. Required actions include repetitive inspections for overpressure tightness on both regulating valves, and replacing the affected valve with a serviceable unit if necessary. You may obtain further information by examining the MCAI in the AD docket. \n\nComments \n\n\tWe gave the public the opportunity to participate in developing this AD. We considered the comment received. \n\nRequest for Certain Airplanes To Be Included in the Time Extension \n\n\tDassault Aviation requested that we revise the supplemental NPRM to extend thetime interval for Model Mystere-Falcon 50 airplanes, for the overpressure tightness check that was specified in the supplemental NPRM. The extension of the time interval specified in the supplemental NPRM was from 1,630 flight hours to 1,640 flight hours for other models. \n\n\tWe agree to extend the time interval for Model Mystere-Falcon 50 airplanes in the final rule. The original NPRM defined a time interval for Model MYSTERE-FALCON 50, MYSTERE-FALCON 900, FALCON 900EX, FALCON 2000, and FALCON 2000EX airplanes. The supplemental NPRM extended the time interval for Model MYSTERE-FALCON 900, FALCON 900EX, FALCON 2000, and FALCON 2000EX airplanes. The extended interval for Model MYSTERE-FALCON 50 airplanes from 1,630 flight hours to 1,640 flight hours was coordinated with EASA. We have revised Table 1 of paragraph (g)(1) of the final rule accordingly. \n\nRequest for Inclusion of the Latest Procedure \n\n\tDassault Aviation requested that we revise the supplemental NPRM to refer to the most current version of Dassault Maintenance Procedure 21- 160, of the Dassault Falcon 50/50EX Maintenance Manual. Dassault Aviation explains that the referenced maintenance procedure has been updated with a new picture and that the procedure is now dated January 2010. \n\n\tWe agree for the reasons stated by the commenter. We have revised Table 2 of the final rule to refer to Dassault Maintenance Procedure 21-160, dated January 2010, as a source of guidance on inspecting for overpress tightness on both valves for Model MYSTERE-FALCON 50 airplanes. \n\nConclusion \n\n\tWe reviewed the available data, including the comment received, and determined that air safety and the public interest require adopting the AD with the changes described previously. We determined that these changes will not increase the economic burden on any operator or increase the scope of the AD. \n\nDifferences Between This AD and the MCAI or Service Information \n\n\tWe have reviewed the MCAI and related service information and, in general, agree with their substance. But we might have found it necessary to use different words from those in the MCAI to ensure the AD is clear for U.S. operators and is enforceable. In making these changes, we do not intend to differ substantively from the information provided in the MCAI and related service information. \n\n\tWe might also have required different actions in this AD from those in the MCAI in order to follow our FAA policies. Any such differences are highlighted in a Note within the AD. \n\nCosts of Compliance \n\n\tWe estimate that this AD will affect 1,082 products of U.S. registry. We also estimate that it will take about 1 work-hour per product to comply with the basic requirements of this AD. The average labor rate is $85 per work-hour. Based on these figures, we estimate the cost of this AD to the U.S. operators to be $91,970, or $85 per product. \n\nAuthority for This Rulemaking \n\n\tTitle 49 of the United States Code specifies the FAA's authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. "Subtitle VII: Aviation Programs,'' describes in more detail the scope of the Agency's authority. \n\n\tWe are issuing this rulemaking under the authority described in "Subtitle VII, Part A, Subpart III, Section 44701: General requirements.'' Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. \n\nRegulatory Findings \n\n\tWe determined that this AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. \n\n\tFor the reasons discussed above, I certify this AD: \n\n\t1. Is not a "significant regulatory action'' under Executive Order 12866; \n\n\t2. Is not a "significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and \n\n\t3. Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. \n\n\tWe prepared a regulatory evaluation of the estimated costs to comply with this AD and placed it in the AD docket. \n\nExamining the AD Docket \n\n\tYou may examine the AD docket on the Internet at http:// www.regulations.gov; or in person at the Docket Operations office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains the NPRM, the regulatory evaluation, any comments received, and other information.The street address for the Docket Operations office (telephone (800) 647-5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. \n\nList of Subjects in 14 CFR Part 39 \n\n\tAir transportation, Aircraft, Aviation safety, Safety. \n\nAdoption of the Amendment \n\nAccordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: \n\nPART 39--AIRWORTHINESS DIRECTIVES \n\n1. The authority citation for part 39 continues to read as follows: \n\n\tAuthority: 49 U.S.C. 106(g), 40113, 44701. \n\nSec. 39.13 (Amended) \n\n2. The FAA amends Sec. 39.13 by adding the following new AD: