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operated at takeoff power and rated must be made from lowest normal pitch or leakage that would prevent rotational speed during at least five to maximum reverse pitch. During each performance of the intended function. hours of this flight test, and at not less cycle, the propeller must run for 30 (b) A burst pressure test to 2.0 times than 90 percent of the rated rotational seconds at the maximum power and the maximum operating pressure for one speed for the remainder of the 50 hours. rotational speed selected by the minute without failure. Leakage is (2) A 50-hour ground test at takeoff applicant for maximum reverse pitch. permitted and seals may be excluded power and rated rotational speed. (e) An analysis based on tests of from the test. (b) Variable-pitch propellers must be propellers of similar design may be used subjected to one of the following tests: in place of the tests of this section. § 35.45 [Removed and Reserved.] (1) A 110-hour endurance test that ■ 34. Remove and reserve § 35.45. ■ 33. Revise §§ 35.41, 35.42, and 35.43 must include the following conditions: to read as follows: (i) Five hours at takeoff power and § 35.47 [Removed and Reserved.] rotational speed and thirty 10-minute § 35.41 Overspeed and overtorque. ■ 35. Remove and reserve § 35.47. cycles composed of: (a) When the applicant seeks approval Issued in Washington, DC, on October 12, (A) Acceleration from idle, of a transient maximum propeller 2008. (B) Five minutes at takeoff power and overspeed, the applicant must Robert A. Sturgell, rotational speed, demonstrate that the propeller is Acting Administrator. (C) Deceleration, and capable of further operation without [FR Doc. E8–25418 Filed 10–23–08; 8:45 am] (D) Five minutes at idle. maintenance action at the maximum BILLING CODE 4910–13–P (ii) Fifty hours at maximum propeller overspeed condition. This continuous power and rotational speed, may be accomplished by: (iii) Fifty hours, consisting of ten 5- (1) Performance of 20 runs, each of 30 DEPARTMENT OF TRANSPORTATION hour cycles composed of: seconds duration, at the maximum (A) Five accelerations and propeller overspeed condition; or Federal Aviation Administration decelerations between idle and takeoff (2) Analysis based on test or service power and rotational speed, experience. 14 CFR Part 39 (B) Four and one half hours at (b) When the applicant seeks approval approximately even incremental of a transient maximum propeller [Docket No. FAA–2008–0643; Directorate conditions from idle up to, but not overtorque, the applicant must Identifier 2008–NM–094–AD; Amendment 39–15698; AD 2008–22–03] including, maximum continuous power demonstrate that the propeller is and rotational speed, and capable of further operation without RIN 2120–AA64 (C) Thirty minutes at idle. maintenance action at the maximum (2) The operation of the propeller propeller overtorque condition. This Airworthiness Directives; Bombardier throughout the engine endurance tests may be accomplished by: Model CL–600–2B19 (Regional Jet prescribed in part 33 of this chapter. (1) Performance of 20 runs, each of 30 Series 100 & 440) Airplanes (c) An analysis based on tests of seconds duration, at the maximum AGENCY: Federal Aviation propellers of similar design may be used propeller overtorque condition; or Administration (FAA), Department of in place of the tests of paragraphs (a) (2) Analysis based on test or service Transportation (DOT). and (b) of this section. experience. ACTION: Final rule. ■ 32. Add § 35.40 to read as follows: § 35.42 Components of the propeller control system. SUMMARY: We are superseding an § 35.40 Functional test. The applicant must demonstrate by existing airworthiness directive (AD) for The variable-pitch propeller system tests, analysis based on tests, or service the products listed above. This AD must be subjected to the applicable experience on similar components, that results from mandatory continuing functional tests of this section. The each propeller blade pitch control airworthiness information (MCAI) same propeller system used in the system component, including governors, originated by an aviation authority of endurance test (§ 35.39) must be used in pitch change assemblies, pitch locks, another country to identify and correct the functional tests and must be driven mechanical stops, and feathering system an unsafe condition on an aviation by a representative engine on a test components, can withstand cyclic product. The MCAI describes the unsafe stand or on an airplane. The propeller operation that simulates the normal load condition as: must complete these tests without and pitch change travel to which the Bombardier Aerospace has completed a evidence of failure or malfunction. This component would be subjected during system safety review of the aircraft fuel test may be combined with the the initially declared overhaul period or system against fuel tank safety standards endurance test for accumulation of during a minimum of 1,000 hours of * * *. cycles. typical operation in service. [A]ssessment showed that supplemental (a) Manually-controllable propellers. maintenance tasks [for certain bonding Five hundred representative flight § 35.43 Propeller hydraulic components. jumpers, wiring harnesses, and hydraulic cycles must be made across the range of Applicants must show by test, systems, among other items] are required to pitch and rotational speed. validated analysis, or both, that prevent potential ignition sources inside the fuel system, which could result in a fuel tank (b) Governing propellers. Fifteen propeller components that contain explosion. * * * hundred complete cycles must be made hydraulic pressure and whose structural across the range of pitch and rotational failure or leakage from a structural We are issuing this AD to require speed. failure could cause a hazardous actions to correct the unsafe condition (c) Feathering propellers. Fifty cycles propeller effect demonstrate structural on these products. of feather and unfeather operation must integrity by: DATES: This AD becomes effective be made. (a) A proof pressure test to 1.5 times November 28, 2008. (d) Reversible-pitch propellers. Two the maximum operating pressure for one The Director of the Federal Register hundred complete cycles of control minute without permanent deformation approved the incorporation by reference

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of a certain publication, listed in this Request To Clarify Airplanes Subject to Conclusion AD, as of April 16, 2008 (73 FR 13100, Certain Tasks We reviewed the available data, March 12, 2008). Comair and Air Wisconsin request including the comments received, and ADDRESSES: You may examine the AD that we clarify which airplanes are determined that air safety and the docket on the Internet at http:// subject to certain tasks identified in the public interest require adopting the AD www.regulations.gov or in person at the NPRM. Comair states that Tasks 28–11– with the changes described previously. U.S. Department of Transportation, 00–601, 28–11–00–602, and 28–11–00– We determined that these changes will Docket Operations, M–30, West 604 require inspections on airplanes not increase the economic burden on Building Ground Floor, Room W12–140, that are post-modsum or post-service any operator or increase the scope of the 1200 New Jersey Avenue, SE., bulletin. Comair states that since the AD. Washington, DC. NPRM restates the phase-in Differences Between This AD and the FOR FURTHER INFORMATION CONTACT: requirements of Appendix D, ‘‘Fuel MCAI or Service Information Rocco Viselli, Aerospace Engineer, System Limitations,’’ of Part 2, We have reviewed the MCAI and Airframe and Propulsion Branch, ANE– ‘‘Airworthiness Requirements,’’ of related service information and, in 171, FAA, New York Aircraft Bombardier CL–600–2B19 Maintenance general, agree with their substance. But Certification Office, 1600 Stewart Requirements Manual CSP–053, we might have found it necessary to use Avenue, Suite 410, Westbury, New York Revision 7, dated May 10, 2007, (the different words from those in the MCAI 11590; telephone (516) 228–7331; fax ‘‘MRM’’), the ‘‘effectivity’’ statements to ensure the AD is clear for U.S. (516) 794–5531. specified in the MRM for the tasks operators and is enforceable. In making should also be included. Air Wisconsin SUPPLEMENTARY INFORMATION: these changes, we do not intend to differ notes that in the MRM, Task 28–11–00– substantively from the information Discussion 604 applies only to post-Service provided in the MCAI and related Bulletin 601R–28–059 airplanes. Air We issued a notice of proposed service information. Wisconsin questions if the intent of the We might also have required different rulemaking (NPRM) to amend 14 CFR NPRM is for Task 28–11–00–604 to also part 39 to include an AD that would actions in this AD from those in the be performed on pre-service bulletin MCAI in order to follow our FAA apply to the specified products. That airplanes. NPRM was published in the Federal policies. Any such differences are We agree with the commenters that Register on June 20, 2008 (73 FR 35095) highlighted in a NOTE within the AD. we must clarify which airplanes are and proposed to supersede AD 2008– affected by Tasks 28–11–00–601, 28– Costs of Compliance 06–02, Amendment 39–15414 (73 FR 11–00–602, and 28–11–00–604. We estimate that this AD will affect 13100, March 12, 2008). That NPRM Although the MCAI does not refer to the 689 products of U.S. registry. We also proposed to correct an unsafe condition ‘‘effectivity’’ statement specified in the estimate that it will take about 1 work- for the specified products. The MCAI MRM, we have determined only those hour per product to comply with the states: airplanes identified in the ‘‘effectivity’’ basic requirements of this AD. The Bombardier Aerospace has completed a statement specified in the MRM are average labor rate is $80 per work-hour. system safety review of the aircraft fuel subject to the corresponding tasks. Based on these figures, we estimate the system against fuel tank standards We have revised paragraph (f)(2) of cost of this AD to the U.S. operators to introduced in Chapter 525 of the be $55,120, or $80 per product. Airworthiness Manual through Notice of this AD by adding paragraphs (f)(2)(i) Proposed Amendment (NPA) 2002–043. The and (f)(2)(ii) to clarify that only Authority for This Rulemaking identified non-compliances were then airplanes identified in the ‘‘effectivity’’ Title 49 of the United States Code assessed using Transport Canada Policy statement specified in the MRM for specifies the FAA’s authority to issue Letter No. 525–001, to determine if Tasks 28–11–00–601, 28–11–00–602, rules on aviation safety. Subtitle I, mandatory corrective action is required. and 28–11–00–604 are subject to the section 106, describes the authority of The assessment showed that supplemental action specified in paragraph (f)(2) of maintenance tasks [for certain bonding the FAA Administrator. ‘‘Subtitle VII: this AD. jumpers, wiring harnesses, and hydraulic Aviation Programs,’’ describes in more systems, among other items] are required to We have also removed Tasks 28–11– detail the scope of the Agency’s prevent potential ignition sources inside the 00–601, 28–11–00–602, and 28–11–00– authority. fuel system, which could result in a fuel tank 604 from paragraph (g)(1)(i) of this AD We are issuing this rulemaking under explosion. Revision has been made to and added new paragraph (g)(1)(iii) to the authority described in ‘‘Subtitle VII, Canadair Regional Jet Model CL–600–2B19 clarify the compliance times for Maintenance Requirements Manual, CSP Part A, Subpart III, Section 44701: airplanes not identified in paragraph General requirements.’’ Under that A–053, Part 2, Appendix D, ‘‘Fuel System (f)(2)(ii) of this AD. Limitations’’ to introduce the required section, Congress charges the FAA with maintenance tasks. Removed Reference to ‘‘Later promoting safe flight of civil aircraft in Revisions’’ of Service Information air commerce by prescribing regulations The corrective action is revising the for practices, methods, and procedures Airworthiness Limitations Section We removed the reference to ‘‘later the Administrator finds necessary for (ALS) of the Instructions for Continued revisions’’ of the applicable service safety in air commerce. This regulation Airworthiness to incorporate new information in paragraphs (f)(1), (f)(5), is within the scope of that authority limitations for fuel tank systems. You and (g)(2) of this AD to be consistent because it addresses an unsafe condition may obtain further information by with FAA policy and Office of the that is likely to exist or develop on examining the MCAI in the AD docket. Federal Register regulations. We may products identified in this rulemaking Comments consider approving the use of later action. revisions of the service information as We gave the public the opportunity to an alternative method of compliance Regulatory Findings participate in developing this AD. We with this AD, as provided by paragraph We determined that this AD will not considered the comments received. (h)(1) of this AD. have federalism implications under

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Executive Order 13132. This AD will Affected ADs dated May 10, 2007 (‘‘the MRM’’), task not have a substantial direct effect on (b) This AD supersedes AD 2008–06–02, numbers 28–11–00–601, 28–11–00–602, 28– the States, on the relationship between Amendment 39–15414. 11–00–603, 28–11–00–604, 29–33–01–601, the national government and the States, and 29–33–01–602. Except as required by Applicability paragraph (g)(1) of this AD, for those task or on the distribution of power and numbers, the initial compliance times start at responsibilities among the various (c) This AD applies to all Bombardier Model CL–600–2B19 (Regional Jet Series 100 the applicable time specified in paragraphs levels of government. and 440) airplanes, certificated in any (f)(2), (f)(3), and (f)(4) of this AD, and the For the reasons discussed above, I category, all serial numbers. repetitive inspections must be accomplished thereafter at the interval specified in the certify this AD: Note 1: This AD requires revisions to 1. Is not a ‘‘significant regulatory MRM, except as provided by paragraphs (f)(5) certain operator maintenance documents to and (h)(1) of this AD. action’’ under Executive Order 12866; include new inspections. Compliance with 2. Is not a ‘‘significant rule’’ under the (2) For airplanes identified in paragraphs these inspections is required by 14 CFR (f)(2)(i) and (f)(2)(ii) of this AD, the initial DOT Regulatory Policies and Procedures 91.403(c). For airplanes that have been compliance time for Tasks 28–11–00–601, (44 FR 11034, February 26, 1979); and previously modified, altered, or repaired in 28–11–00–602, 28–11–00–603, and 28–11– 3. Will not have a significant the areas addressed by these inspections, the 00–604 is within 5,000 flight hours after economic impact, positive or negative, operator may not be able to accomplish the April 16, 2008. Thereafter, these tasks must on a substantial number of small entities inspections described in the revisions. In this be accomplished within the repetitive situation, to comply with 14 CFR 91.403(c), interval specified in Appendix D, ‘‘Fuel under the criteria of the Regulatory the operator must request approval for an Flexibility Act. System Limitations,’’ of Part 2, alternative method of compliance according ‘‘Airworthiness Requirements,’’ of We prepared a regulatory evaluation to paragraph (h)(1) of this AD. The request of the estimated costs to comply with Bombardier CL–600–2B19 Maintenance should include a description of changes to Requirements Manual CSP–053, Revision 7, this AD and placed it in the AD docket. the required inspections that will ensure the dated May 10, 2007 (‘‘the MRM’’). continued operational safety of the airplane. Examining the AD Docket (i) For Task 28–11–00–603: Airplanes Subject having more than 15,000 flight hours as of You may examine the AD docket on April 16, 2008. the Internet at http:// (d) Air Transport Association (ATA) of (ii) For Tasks 28–11–00–601, 28–11–00– www.regulations.gov; or in person at the America Code 28: Fuel. 602, and 28–11–00–604: Airplanes having Docket Operations office between 9 a.m. Reason more than 15,000 flight hours as of April 16, and 5 p.m., Monday through Friday, 2008, and which are identified in the (e) The mandatory continuing applicable ‘‘effectivity’’ statement specified except Federal holidays. The AD docket airworthiness information (MCAI) states: contains the NPRM, the regulatory in the MRM for Tasks 28–11–00–601, 28–11– Bombardier Aerospace has completed a 00–602, and 28–11–00–604. evaluation, any comments received, and system safety review of the aircraft fuel (3) For Task 29–33–01–601, the initial other information. The street address for system against fuel tank standards compliance time is within 5,000 flight hours the Docket Operations office (telephone introduced in Chapter 525 of the after April 16, 2008. Thereafter, Task 29–33– (800) 647–5527) is in the ADDRESSES Airworthiness Manual through Notice of 01–601 must be accomplished within the section. Comments will be available in Proposed Amendment (NPA) 2002–043. The repetitive interval specified in Appendix D, the AD docket shortly after receipt. identified non-compliances were then ‘‘Fuel System Limitations,’’ of Part 2, assessed using Transport Canada Policy ‘‘Airworthiness Requirements,’’ of List of Subjects in 14 CFR Part 39 Letter No. 525–001, to determine if Bombardier CL–600–2B19 Maintenance mandatory corrective action is required. Requirements Manual CSP–053, Revision 7, Air transportation, Aircraft, Aviation The assessment showed that supplemental safety, Incorporation by reference, dated May 10, 2007. maintenance tasks [for certain bonding (4) For airplanes having more than 27,500 Safety. jumpers, wiring harnesses, and hydraulic flight hours as of April 16, 2008, the initial Adoption of the Amendment systems, among other items] are required to compliance time for Task 29–33–01–602 is prevent potential ignition sources inside the within 2,500 flight hours after April 16, 2008. ■ Accordingly, under the authority fuel system, which could result in a fuel tank Thereafter, this task must be accomplished delegated to me by the Administrator, explosion. Revision has been made to within the repetitive interval specified in Canadair Regional Jet Model CL–600–2B19 Appendix D, ‘‘Fuel System Limitations,’’ of the FAA amends 14 CFR part 39 as Maintenance Requirements Manual, CSP A– follows: Part 2, ‘‘Airworthiness Requirements,’’ of 053, Part 2, Appendix D, ‘‘Fuel System Bombardier CL–600–2B19 Maintenance Limitations’’ to introduce the required Requirements Manual CSP–053, Revision 7, PART 39—AIRWORTHINESS maintenance tasks. DIRECTIVES dated May 10, 2007. The corrective action is revising the (5) After accomplishing the actions ■ 1. The authority citation for part 39 Airworthiness Limitations Section (ALS) of specified in paragraphs (f)(1), (f)(2), (f)(3), continues to read as follows: the Instructions for Continued Airworthiness and (f)(4) of this AD, no alternative to incorporate new limitations for fuel tank inspections/limitation tasks or inspection/ Authority: 49 U.S.C. 106(g), 40113, 44701. systems. limitation task intervals may be used unless the inspection/limitation task or inspection/ § 39.13 [Amended] Restatement of Certain Requirements of AD limitation task interval is approved as an 2008–06–02 ■ 2. The FAA amends § 39.13 by alternative method of compliance (AMOC) in removing Amendment 39–15414 (73 FR (f) Unless already done, do the following accordance with the procedures specified in actions. paragraph (h)(1) of this AD. 13100, March 12, 2008) and adding the (1) Within 60 days after April 16, 2008 (the following new AD: effective date of AD 2008–06–02), revise the New Requirements of This AD: Actions and Compliance 2008–22–03 Bombardier, Inc. (Formerly Airworthiness Limitations Section (ALS) of Canadair): Amendment 39–15698. the Instructions for Continued Airworthiness (g) Unless already done, do the following Docket No. FAA–2008–0643; Directorate to incorporate the inspection and actions. Identifier 2008–NM–094–AD. maintenance requirements, as applicable, in (1) At the times specified in paragraphs Appendix D, ‘‘Fuel System Limitations,’’ of (g)(1)(i), (g)(1)(ii), and (g)(1)(iii) of this AD, as Effective Date Part 2, ‘‘Airworthiness Requirements,’’ of applicable, do the initial inspection for Tasks (a) This airworthiness directive (AD) Bombardier CL–600–2B19 Maintenance 28–11–00–601, 28–11–00–602, 28–11–00– becomes effective November 28, 2008. Requirements Manual CSP–053, Revision 7, 603, 28–11–00–604, and 29–33–01–602, as

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applicable, in Appendix D, ‘‘Fuel System provisions of the Paperwork Reduction Act, SUMMARY: We are adopting a new Limitations,’’ of Part 2, ‘‘Airworthiness the Office of Management and Budget (OMB) airworthiness directive (AD) for Requirements,’’ of Bombardier CL–600–2B19 has approved the information collection Maryland Air Industries, Inc., Model Maintenance Requirements Manual CSP–053, requirements and has assigned OMB Control Revision 7, dated May 10, 2007 (‘‘the MRM’’), Number 2120–0056. Fairchild F–27 and FH–227 Series and thereafter repeat the inspection at the Airplanes. This AD requires operators to applicable interval specified in the MRM, Related Information modify their airplanes and revise their except as provided by paragraphs (g)(2) and (i) Refer to MCAI Canadian Airworthiness inspection or maintenance programs to (h)(1) of this AD. Directive CF–2007–29, dated November 22, incorporate instructions for (i) For airplanes not identified in paragraph 2007, and Appendix D, ‘‘Fuel System maintenance and inspection of the fuel (f)(2)(i) of this AD, the initial compliance Limitations,’’ of Part 2, ‘‘Airworthiness tank systems, as appropriate, by Requirements,’’ of Bombardier CL–600–2B19 time for Task 28–11–00–603 is before the December 16, 2008, using information accumulation of 20,000 total flight hours, or Maintenance Requirements Manual CSP–053, within 5,000 flight hours after the effective Revision 7, dated May 10, 2007; for related developed in accordance with Special date of this AD, whichever occurs later. information. Federal Aviation Regulation 88 (SFAR (ii) For airplanes not identified in 88). This AD results from fuel system Material Incorporated by Reference paragraph (f)(4) of this AD, the initial safety reviews done on similar airplane compliance time for Task 29–33–01–602 is (j) You must use Appendix D, ‘‘Fuel models in accordance with SFAR 88. before the accumulation of 30,000 total flight System Limitations,’’ of Part 2, These safety reviews identified potential ‘‘Airworthiness Requirements,’’ of hours, or within 2,500 flight hours after the unsafe conditions on Model Fairchild effective date of this AD, whichever occurs Bombardier CL–600–2B19 Maintenance later. Requirements Manual CSP–053, Revision 7, F–27 and FH–227 series airplanes for (iii) For airplanes not identified in dated May 10, 2007, to do the actions which the type certificate holder, paragraph (f)(2)(ii) of this AD, the initial required by this AD, unless the AD specifies Maryland Air Industries, Inc., has not compliance time for Tasks 28–11–00–601, otherwise. conducted SFAR 88 safety reviews, has 28–11–00–602, and 28–11–00–604, is within (1) The Director of the Federal Register not provided corrective actions, and 20,000 flight hours after accomplishing the previously approved the incorporation by does not plan to do so. We are issuing applicable modsum or service bulletin reference of Appendix D, ‘‘Fuel System this AD to reduce the potential of specified in the MRM for the task, or within Limitations,’’ of Part 2, ‘‘Airworthiness 5,000 flight hours after the effective date of Requirements,’’ of Bombardier CL–600–2B19 ignition sources inside fuel tanks, this AD, whichever occurs later. Maintenance Requirements Manual CSP–053, which, in combination with flammable (2) After accomplishing the actions Revision 7, dated May 10, 2007, on April 16, fuel vapors, could result in fuel tank specified in paragraphs (g)(1) of this AD, no 2008 (73 FR 13100, March 12, 2008). explosions and consequent loss of the alternative inspections/limitation tasks or (2) For service information identified in airplane. inspection/limitation task intervals may be this AD, contact Bombardier, Inc., Canadair, DATES: This AD is effective November used unless the inspection/limitation task or Aerospace Group, P.O. Box 6087, Station inspection/limitation task interval is Centre-ville, Montreal, Quebec H3C 3G9, 28, 2008. approved as an AMOC in accordance with Canada. Examining the AD Docket the procedures specified in paragraph (h)(1) (3) You may review copies at the FAA, of this AD. Transport Airplane Directorate, 1601 Lind You may examine the AD docket on Avenue, SW., Renton, Washington; or at the the Internet at http:// FAA AD Differences National Archives and Records www.regulations.gov; or in person at the Note 2: This AD differs from the MCAI Administration (NARA). For information on Docket Management Facility between 9 and/or service information as follows: No the availability of this material at NARA, call a.m. and 5 p.m., Monday through differences. (202) 741–6030, or go to: http:// Friday, except Federal holidays. The AD www.archives.gov/federal-register/cfr/ibr- Other FAA AD Provisions locations.html. docket contains this AD, the regulatory (h) The following provisions also apply to evaluation, any comments received, and Issued in Renton, Washington, on October other information. The address for the this AD: 9, 2008. (1) Alternative Methods of Compliance Docket Office (telephone 800–647–5527) (AMOCs): The Manager, New York Aircraft Ali Bahrami, is the Document Management Facility, Certification Office (ACO), FAA, has the Manager, Transport Airplane Directorate, U.S. Department of Transportation, authority to approve AMOCs for this AD, if Aircraft Certification Service. Docket Operations, M–30, West requested using the procedures found in 14 [FR Doc. E8–25299 Filed 10–23–08; 8:45 am] Building, Ground Floor, Room W12– CFR 39.19. Send information to ATTN: Rocco BILLING CODE 4910–13–P Viselli, Aerospace Engineer, Airframe and 140, 1200 New Jersey Avenue, SE., Propulsion Branch, ANE–171, FAA, New Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: York Aircraft Certification Office, 1600 DEPARTMENT OF TRANSPORTATION Stewart Avenue, Suite 410, Westbury, New James Delisio, Aerospace Engineer, York 11590; telephone (516) 228–7331; fax Federal Aviation Administration Airframe and Propulsion Branch, ANE– (516) 794–5531. Before using any approved 171, FAA, New York Aircraft AMOC on any airplane to which the AMOC Certification Office, 1600 Stewart applies, notify your appropriate principal 14 CFR Part 39 Avenue, Suite 410, Westbury, New York inspector (PI) in the FAA Flight Standards [Docket No. FAA–2008–0734; Directorate District Office (FSDO), or lacking a PI, your 11590; telephone (516) 228–7321; fax Identifier 2008–NM–004–AD; Amendment (516) 794–5531. local FSDO. 39–15697; AD 2008–22–02] (2) Airworthy Product: For any requirement SUPPLEMENTARY INFORMATION: in this AD to obtain corrective actions from RIN 2120–AA64 a manufacturer or other source, use these Discussion actions if they are FAA-approved. Corrective Airworthiness Directives; Maryland Air We issued a notice of proposed actions are considered FAA-approved if they Industries, Inc., Model Fairchild F–27 rulemaking (NPRM) to amend 14 CFR are approved by the State of Design Authority and FH–227 Series Airplanes part 39 to include an airworthiness (or their delegated agent). You are required to assure the product is airworthy before it AGENCY: Federal Aviation directive (AD) that would apply to all is returned to service. Administration (FAA), DOT. Maryland Air Industries, Inc., Model Fairchild F–27 and FH–227 series (3) Reporting Requirements: For any ACTION: Final rule. reporting requirement in this AD, under the airplanes. That NPRM was published in

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