AD 2009-24-02

We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued 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:

The manufacturer has advised of receiving a report of looseness of the drive arm of the mechanical elevator trim tab, found during an annual inspection. This kind of damage is likely caused by penetrated humidity over the years.
If left uncorrected, this condition could lead to the separation of the drive arm which could result in flutter of the elevator and possible loss of control of the aircraft.

We are issuing this AD to require actions to correct the unsafe condition on these products.

Final Rule.

2009-24-02 Scheibe-Flugzeugbau GmbH: Amendment 39-16088; Docket No. FAA-2009-0800; Directorate Identifier 2009-CE-041-AD.

Effective Date

(a) This airworthiness directive (AD) becomes effective January 4, 2010.

Affected ADs

(b) None.

Applicability

(c) This AD applies to Models Bergfalke-III, Bergfalke-II/55, SF 25C, and SF-26A Standard gliders, all serial numbers, certificated in any category.

Subject

(d) Air Transport Association of America (ATA) Code 27: Flight Controls.

Reason

(e) The mandatory continuing airworthiness information (MCAI) states:
The manufacturer has advised of receiving a report of looseness of the drive arm of the mechanical elevator trim tab, found during an annual inspection. This kind of damage is likely caused by penetrated humidity over the years.
If left uncorrected, this condition could lead to the separation of the drive arm which could result in flutter of the elevator and possible loss of control of theaircraft.
For the reasons stated above, this new Airworthiness Directive mandates repetitive inspections for solid fixation of the drive arms of the mechanical elevator trim tabs.

Actions and Compliance

(f) Unless already done, do the following actions:
(1) At the next scheduled maintenance inspection after January 4, 2010 (the effective date of this AD) or within the next 12 months after January 4, 2010 (the effective date of this AD), whichever occurs first, inspect the drive arm of the mechanical elevator trim tab
for separation of the drive arm following Scheibe Aircraft GmbH Service Bulletin No. 104-24/1; No. 232-6/1; and No. 653-91/1 (same document), dated June 25, 2009. If any looseness is found, before further flight, repair the drive arm of the mechanical elevator trim tab following Scheibe Aircraft GmbH Work Instruction No. 104-24; No. 232-6; and No. 653-91 (same document), dated March 23, 2009.
(2) Repetitively thereafter, at intervals not to exceed every12 months, inspect the drive arm of the mechanical elevator trim tab and do all corrective actions following Scheibe Aircraft GmbH Service Bulletin No. 104-24/1; No. 232-6/1; and No. 653-91/1 (same document), dated June 25, 2009; and Scheibe Aircraft GmbH Work Instruction No. 104-24; No. 232-6; and No. 653-91 (same document), dated March 23, 2009.

Note 1: The service information references four documents: 104- 24 (104-24/1), 232-6 (232-6/1), 653-91 (653-91/1), and 770-30 (770- 30/1). This AD does not reference 770-30 (770-30/1) because the Model SF28A Tandem Falke is not type certificated in the United States. 14 CFR part 39 only allows the FAA to issue ADs against type certificated products.

FAA AD Differences

Note 2: This AD differs from the MCAI and/or service information as follows: No differences.

Other FAA AD Provisions

(g) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, Standards Office, FAA,has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: Greg Davison, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4130; fax: (816) 329-4090. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO.
(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.
(3) Reporting Requirements: For any reporting requirement in this AD, under the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq.), the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120-0056.

Related Information

(h) Refer to MCAI European Aviation Safety Agency (EASA) AD No.: 2009-0132, dated June 23, 2009; Scheibe Aircraft GmbH Service Bulletin No. 104-24/1; No. 232-6/1; and No. 653-91/1 (same document), dated June 25, 2009; and Scheibe Aircraft GmbH Work Instruction No. 104-24; No. 232-6; and No. 653-91 (same document), dated March 23, 2009, for related information.

Material Incorporated by Reference

(i) You must use the service information specified in Table 1 of this AD to do the actions required by this AD, unless the AD specifies otherwise.
(1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) For service information identified in this AD, contact SCHEIBE AIRCRAFT GMBH/Customer Service, Am Flugplatz 5, 73540 Heubach, Federal Republic of Germany; telephone: + 49 (0) 7173- 184286; fax: + 49 (0) 7173-185587; E-mail: info@scheibe-aircraft.de; Internet: http://www.scheibe-aircraft.de/.
(3) You may review copies of the service information incorporated by reference for this AD at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Kansas City, Missouri 64106. For information on the availability of this material at the Central Region, call (816) 329-3768.
(4) You may also review copies of the service information incorporated by reference for this AD at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 741-6030, or go to: http:// www.archives.gov/federal_register/code_of_federal_regulations/ ibr_locations.html.

Table 1--Material Incorporated by Reference

Service Information
Pages
Revision
Date
Scheibe Aircraft GmbH Service Bulletin No. 104-24/1; No. 232-6/1; and No. 653-91/1 (same document)
1 and 2
Not Applicable
June 25, 2009
Scheibe Aircraft GmbH Work Instruction No. 104-24; No. 232-6; and No. 653-91 (same document)
1 and 2
Not Applicable
March 23, 2009

Discussion

We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to include an AD that would apply to the specified products. That NPRM was published in the Federal Register on August 31, 2009 (74 FR 44777). That NPRM proposed to correct an unsafe condition for the specified products. The MCAI states:

The manufacturer has advised of receiving a report of looseness of the drive arm of the mechanical elevator trim tab, found during an annual inspection. This kind of damage is likely caused by penetrated humidity over the years.
If left uncorrected, this condition could lead to the separation of the drive arm which could result in flutter of the elevator and possible loss of control of the aircraft. For the reasons stated above, this new Airworthiness Directive mandates repetitive inspections for solid fixation of the drive arms of the mechanical elevator trim tabs.

Comments

We gave the public the opportunity to participate in developing this AD. We received no comments on the NPRM or on the determination of the cost to the public.

Conclusion

We reviewed the available data and determined that air safety and the public interest require adopting the AD as proposed.

Differences Between This AD and the MCAI or Service Information

We 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.
We might also have required different actions in this AD from those in the MCAI in order to follow FAA policies. Any such differences are highlighted in a NOTE within the AD.

Costs of Compliance

We estimate that this AD will affect 5 products of U.S. registry. Wealso estimate that it will take about 8 work-hours per product to comply with the basic requirements of this AD. The average labor rate is $80 per work-hour. Required parts will cost about $14 per product.
Based on these figures, we estimate the cost of this AD to the U.S. operators to be $3,270 or $654 per product.

Authority for This Rulemaking

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 aircommerce. 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.

Regulatory Findings

We 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.
For the reasons discussed above, I certify this AD:
(1) Is not a "significant regulatory action'' under Executive Order 12866;
(2) Is not a "significant rule'' under 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 evaluationof the estimated costs to comply with this AD and placed it in the AD Docket.

Examining the AD Docket

You may examine the AD docket on the Internet at http:// www.regulations.gov; or in person at the Docket Management Facility 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 Office (telephone (800) 647-5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.

Adoption of the Amendment

Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

1. The authority citation for part 39 continues to read as follows:

Authority: 49 U.S.C. 106(g), 40113, 44701.

Sec. 39.13 [Amended]

2. The FAA amends Sec. 39.13 by adding the following new AD: