98-10-07: SFM - Weight and Balance

98-10-07 ALEXANDER SCHLEICHER SEGELFLUGZEUGBAU: Amendment 39-10518; Docket No. 97-CE-103-AD. Applicability: Model ASK 21 sailplanes, all serial numbers, certificated in any category, that are equipped with the modifications in Alexander Schleicher Technical Note (TN) 3 or TN 7. NOTE 1: This AD applies to each sailplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For sailplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (d) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it. Compliance: Required within the next 3 calendar months after the effective date of this AD, unless already accomplished. To prevent the operator from using inaccurate weight and balance information provided in the sailplane flight manual (SFM), which could lead to hazardous flight conditions, accomplish the following: (a) Replace page 2 (dated May 16, 1984) and page 13 (dated February 16, 1984) from the Alexander Schleicher Model ASK 21 SFM with new pages 2 and 13, both dated June 4, 1984, in accordance with Alexander Schleicher ASK 21 Technical Note No. 13 a, dated June 4, 1984. (b) Incorporating the SFM revisions, as required by this AD, may be performed by the owner/operator holding at least a private pilot certificate as authorized by section 43.7 of the Federal Aviation Regulations (14 CFR 43.7), and must be entered into the aircraft records showing compliance with this AD in accordance with section 43.9 of the Federal Aviation Regulations (14 CFR 43.9). (c) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the sailplane to a location where the requirements of this AD can be accomplished. (d) An alternative method of compliance or adjustment of the compliance time that provides an equivalent level of safety may be approved by the Manager, Small Airplane Directorate, Aircraft Certification Service, 1201 Walnut, suite 900, Kansas City, Missouri 64106. The request shall be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Small Airplane Directorate. NOTE 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Small Airplane Directorate. (e) Questions or technical information related to Alexander Schleicher ASK 21 Technical Note No. 13 a, dated June 4, 1984, should be directed to Alexander Schleicher, Segelflugzeugbau, 6416 Poppenhausen, Wasserkuppe, Federal Republic of Germany; telephone: 49.6658.890 or 49.6658.8920; facsimile: 49.6658.8923 or 49.6658.8940. This service information may be examined at the FAA, Central Region, Office of the Regional Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri 64106. (f) The replacement required by this AD shall be done in accordance with Alexander Schleicher ASK 21 Technical Note No. 13 a, dated June 4, 1984. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from Alexander Schleicher, Segelflugzeugbau, 6416 Poppenhausen, Wasserkuppe, Federal Republic of Germany. Copies may be inspected at the FAA, Central Region, Office of the Regional Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri, or at the Office of the Federal Register, 800 North Capitol Street, NW, suite 700, Washington, DC. NOTE 3: The subject of this AD is addressed in German AD No. 84-32/2 Schleicher, dated June 12, 1984. (g) This amendment becomes effective on June 26, 1998.