98-23-02: Airglas Engineering Company Ski Installation

98-23-02 CESSNA AIRCRAFT COMPANY: Amendment 39-10865; Docket No. 97-CE-138-AD; Supersedes AD 80-10-01, Amendment 39-3762 which superseded Airglas AD 71-11-06 Amendment 39-1218 (36 FR 9860). Applicability: The following airplane models, all serial numbers; certificated in any category, that have either Airglas Engineering Company, Inc., (AECI) Model LW3600-180 (single position) or Model LW3600-180A (two position) fixed penetration wheel skis installed in accordance with Supplemental Type Certificate (STC) SA213AL: Models 180 180D 180H 185A 185E 180A 180E 180J 185B A185E 180B 180F 180K 185C A185F 180C 180G 185 185D NOTE 1: This AD applies to each airplane 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 airplanes 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 (g) 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 50 hours time-in-service (TIS) after the effective date of this AD, unless already accomplished. To prevent one or both wheel skis from rotating into a nose-down position during flight, which could result in loss of control of the airplane and/or possible airplane damage during flight or landing operations, accomplish the following: (a) Modify the wheel ski bungee assemblies, safety cables, and check cables, and their attachments to the airplane and the skis, in accordance with Airglas Engineering Company, Inc. (AECI) Drawing No. LW3600-180A-1 and -2, Revision "B", dated September 21, 1979; AECI Drawing No. LW3600-180A-3, Revision "A", dated April 30, 1979; and AECI Drawing No. LW3600-180, Revision "F", dated September 21, 1979 (for single position wheel ski installations) or AECI Drawing No. LW3600-180A, Revision "E", dated September 21, 1979 (for two position wheel ski installations). NOTE 2: AECI Service Bulletin (SB) No. LW3600-3, originally issued: September 21, 1979; Amended: October 10, 1997, specifies following the procedures provided in the drawings referenced in paragraph (a) of this AD. (b) Fabricate a placard using letters at least 1/8-inch in height and install this placard adjacent to the airspeed indicator, in accordance with AECI Drawing No. LW3600-180A-11, originally issued: September 21, 1979, and AECI SB No. LW3600-3, originally issued: September 21, 1979; Amended: October 10, 1997. (c) Re-mark the airspeed indicator to display the never exceed airspeed (160 knotsindicated airspeed (KIAS)) and the maximum structural cruising speed (139 KIAS) with skis installed, in accordance with AECI SB No. LW3600-3, originally issued: September 21, 1979; Amended: October 10, 1997. (d) Place AECI Document AE97-13FM, "Supplemental Airplane Flight Manual and Airplane Flight Manual Supplement", dated October 10, 1997, in the airplane cockpit, in accordance with AECI SB No. LW3600-3, originally issued: September 21, 1979; Amended: October 10, 1997. (e) The placard, airspeed indicator re-marking (provided the indicator is re-marked by painting the outside of the glass), and AFM supplement placement requirements of paragraphs (b), (c), and (d) of this AD, respectively, can be accomplished by: (1) For airplanes operated in accordance with part 91 of the Federal Aviation Regulations (14 CFR part 91): An owner/operator who holds at least a private pilot's certificate; and (2) For airplanes operated in accordance with part 135 of the FederalAviation Regulations (14 CFR part 135): An operator who holds an operating certificate issued under part 135 of the Federal Aviation Regulations (14 CFR part 135), as authorized by sections 43.3, 43.7, and 43.9 of the Federal Aviation Regulations (14 CFR 43.3, 43.7, and 43.9). (f) 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 airplane to a location where the requirements of this AD can be accomplished. (g) An alternative method of compliance or adjustment of the compliance time that provides an equivalent level of safety may be approved by the Manager, Anchorage Aircraft Certification Office (ACO), 222 West 7th Avenue, #14, Room 128, Anchorage, Alaska 99513-7587. (1) The request shall be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Anchorage ACO. (2) Alternative methods of compliance approved for AD 80-10-01 are not considered approved as alternative methods of compliance for this AD. NOTE 3: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Anchorage ACO. (h) The modifications, placard installation, airspeed indicator re-marking, and AFM supplement placement required by this AD shall be done in accordance with AECI SB No. LW3600-3, originally issued: September 21, 1979; Amended: October 10, 1997; AECI Drawing No. LW3600-180A-1 and -2, Revision "B", dated September 21, 1979; AECI Drawing No. LW3600-180A-3, Revision "A", dated April 30, 1979; AECI Drawing No. LW3600-180, Revision "F", dated September 21, 1979 (for single position wheel ski installations) or AECI Drawing No. LW3600-180A, Revision "E", dated September 21, 1979 (for two position wheel ski installations); AECI Drawing No. LW3600-180A-11, originally issued: September 21, 1979; and AECI Document AE97-13FM, "Supplemental Airplane Flight Manual and Airplane Flight Manual Supplement", dated October 10, 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 Airglas Engineering Company, Inc., P.O. Box 190107, Anchorage, Alaska 99519-0107. 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. (i) This amendment supersedes AD 80-10-01, Amendment 39-3762. (j) This amendment becomes effective on December 22, 1998.