Airworthiness directives › 98-09-14
AD 98-09-14 Airworthiness Directives; Diamond Aircraft Industries Models HK 36 TTS and HK 36 TTC Sailplanes
Makes named: diamond, rotax. Models named: HK 36 TTS, HK 36 TTC sailplanes. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
Model HK 36 TTS and HK 36 TTC sailplanes, all serial numbers, certificated in any category, that are equipped with Bombardier ROTAX 914 F series engines, serial numbers 4,420.011 through 4,420.058. 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 10 hours time-in-service (TIS) after the effective date of this AD, unless already accomplished. To prevent possible loss of engine power, which could result in possible loss of control of the sailplane, accomplish the following: (a) Inspect the Bombardier ROTAX engine's turbocharger oil- pressure line for a banjo bolt with a valve seat, part number (P/N) 941 782 (or an FAA-approved equivalent part number), in accordance with the Instructions section of Bombardier ROTAX Technical Bulletin No. 914-04, dated August, 1997. Note 2: An incorrect banjo bolt would have a built-in orifice, instead of a valve seat. (b) If an incorrect banjo bolt is installed, prior to further flight, replace the banjo bolt with one that has P/N 941 782 (or an FAA-approved equivalent part number), and repair or replace the turbocharger in accordance with the Instructions section of Bombardier ROTAX Technical Bulletin No. 914-04, dated August, 1997. (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, FAA, 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 3: 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 Bombardier ROTAX Technical Bulletin No. 914-04, dated August 1997, should be directed to Diamond Aircraft Industries, G.m.b.H., N.A. Otto-Strabe 5, A-2700, Wiener Neustadt, Austria. 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 inspection and replacement required by this AD shall be done in accordance with Bombardier ROTAX Technical Bulletin No. 914- 04, dated August, 1997. 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 Diamond Aircraft Industries, G.m.b.H., N.A. Otto-Strabe 5, A-2700, Wiener Neustadt, Austria. 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 4: The subject of this AD is addressed in Austrian AD No. 90, undated. (g) This amendment becomes effective on June 14, 1998. Issued in Kansas City, Missouri, on April 17, 1998. James A. Jackson, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. 98-11008 Filed 4-27-98; 8:45 am] BILLING CODE 4910-13-U
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1