Federal Aviation Administration (FAA), Department of Transportation (DOT).
Notice of proposed rulemaking (NPRM).
We propose to adopt a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) Models 182Q and 182R airplanes that are equipped with Societé de Motorisations Aéronautiques (SMA) Aircraft Diesel Engine (ADE) Model SR305–230–1 or Model SR305–230 converted to Model SR305–230–1 installed under Supplemental Type
We must receive comments on this proposed AD by January 12, 2009.
Use one of the following addresses to comment on this proposed AD:
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For service information identified in this proposed AD, contact SMA Customer Service, 10–12 Rue Didier Daurat, 18021 Bourges, France; telephone: +33 (0) 2 48 67 56 00;
Don O. Young, Aerospace Engineer, ACE–118A, Atlanta Aircraft Certification Office, One Crown Center, 1895 Phoenix Blvd., Suite 450, Atlanta, Georgia 30349;
We invite you to send any written relevant data, views, or arguments regarding this proposed AD. Send your comments to an address listed under the
We will post all comments we receive, without change, to
We have received a report of two instances of induction hose disconnection (due to incorrectly installed clamps securing the intercooler outlet and intercooler inlet hose assemblies) occurring while in service on the air inlet manifold circuit of Cessna Models 182Q and 182R airplanes equipped with SMA ADE Model SR305–230–1 or Model SR305–230 converted to Model SR305–230–1 installed under STC SA03302AT. This induction hose disconnection resulted in a loss of turbo boost and a significant loss of engine power.
SMA reports that these hoses and clamps are included in STC SA03302AT.
This condition, if not corrected, could result in loss of turbo boost and a significant loss of engine power. This failure could lead to an inability to maintain constant altitude in flight.
We have reviewed the following service information SMA SAFRAN Group Service Bulletin SB–C182–75–004, Revision No. Basic Issue, dated July 8, 2008.
The service information describes procedures for:
• Removal of intercooler SF01170004–0;
• Installation of reworked intercooler SF01170004–1;
• Removal of intercooler and turbocharger inlet and outlet hoses;
• Installation of new intercooler inlet hose SF01170083–0 and intercooler outlet hose SF01170048–0; and
• Inspection procedures for installation of the intercooler hose assemblies.
We are proposing this AD because we evaluated all information and determined the unsafe condition described previously is likely to exist or develop on other products of the same type design. This proposed AD would require you to remove the intercooler and the intercooler inlet and outlet hoses, install a reworked intercooler and new intercooler inlet and outlet hoses, inspect hoses and clamp torques, and repetitively inspect installation of the intercooler outlet and inlet hose assemblies for any displacement or damage of clamps or hoses, and, if necessary, replace any damaged clamps or hoses.
We estimate that this proposed AD would affect 7 airplanes in the U.S. registry.
We estimate the following costs to do the proposed replacements:
We estimate the following costs to do any proposed inspection of the installation of the intercooler hose assembly that would be required:
We have no way of determining the cost of any necessary replacement that may be required as a result of any proposed inspection.
SMA will provide warranty credit as stated in SMA SAFRAN Group Service Bulletin SB–C182–75–004, Revision No. Basic Issue, dated July 8, 2008.
Title 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.
We 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.
We have determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would 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.
1. Is not a “significant regulatory action” under Executive Order 12866;
2. Is not a “significant rule” under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979); and
3. 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.
We prepared a regulatory evaluation of the estimated costs to comply with this proposed AD and placed it in the AD docket.
You may examine the AD docket that contains the proposed AD, the regulatory evaluation, any comments received, and other information on the Internet at
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.
Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows:
1. The authority citation for part 39 continues to read as follows:
49 U.S.C. 106(g), 40113, 44701.
2. The FAA amends § 39.13 by adding the following new AD:
(a) We must receive comments on this airworthiness directive (AD) action by January 12, 2009.
(b) None.
(c) This AD applies to Models 182Q and 182R airplanes, all serial numbers, certificated in any category, that are equipped with:
(1) Societé de Motorisations Aéronautiques (SMA) aircraft diesel engine (ADE) Model SR305–230–1 installed under Supplemental Type Certificate (STC) SA03302AT; or
(2) SMA ADE Model SR305–230 converted to Model SR305–230–1 (by incorporation of SMA Service Bulletin SB–01–76–002) installed under STC SA03302AT.
(d) This AD results from a report of two instances of induction hose disconnection occurring while in service on the air inlet manifold circuit, resulting in a loss of turbo boost and a significant loss of engine power. We are issuing this AD to detect and correct improper intercooler hose assembly installation, which could result in loss of turbo boost and a significant loss of engine power. This failure could lead to an inability to maintain constant altitude in flight.
(e) To address this problem, you must do the following, unless already done:
(f) Under 14 CFR part 39.23, we are limiting the special flight permits for this AD by the following conditions:
(1) Before flight, an inspection of hoses and clamps by a properly certificated mechanic reveals no damaged or disconnected hoses or clamps; and
(2) You fly by the most direct route to the site where the AD can be performed.
(g) The Manager, Atlanta Aircraft Certification Office (ACO), FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to
(h) To get copies of the service information referenced in this AD, contact SMA Customer Service, 10–12 Rue Didier Daurat, 18021 Bourges, France;