95-24-06: Rfms Changes - Autorotation

95-24-06 BELL HELICOPTER TEXTRON, A DIVISION OF TEXTRON CANADA (BHT): Amendment 39-9438. Docket No. 93-SW-04-AD. Supersedes AD 91-23-15, Amendment 39-8084. Applicability: Model 206B and 206L helicopters, equipped with Allison 250-C20R engine power-out warning sensors, part number (P/N) 206-075-545-001, in accordance with Supplemental Type Certificate (STC) No. SH4169NM (applicable to Model 206L), SH4179NM (applicable to Model 206B), or SH4729NM (applicable to both Model 206B & L), certificated in any category. NOTE 1: This AD applies to each helicopter 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 helicopters that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must use the authority provided in paragraph (b) to request approval from the FAA. This approval may address either no action, if the current configuration eliminates the unsafe condition, or different actions necessary to address the unsafe condition described in this AD. Such a request should include an assessment of the effect of the changed configuration on the unsafe condition addressed by this AD. In no case does the presence of any modification, alteration, or repair remove any helicopter from the applicability of this AD. Compliance: Required as indicated, unless accomplished previously. To alert the pilot of a potential false engine-out warning when practicing autorotations that could result in an unnecessary emergency autorotative landing, accomplish the following: (a) Within 10 days after the effective date of this AD, revise the Limitations section of the applicable FAA-approved STC Rotorcraft Flight Manual Supplement (RFMS) by adding the warning statement and note contained in the Description section of Soloy Corporation Service Bulletin 02-680, revised December 8, 1992. (b) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used when approved by the Manager, Seattle Aircraft Certification Office, Transport Airplane Directorate, FAA, 1601 Lind Avenue SW., Renton, Washington 98055-4056. Operators shall submit their requests through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Seattle Aircraft Certification Office. NOTE 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Seattle Aircraft Certification Office. (c) Special flight permits to accomplish the requirements of this AD will not be issued. (d) The warning and note to be inserted into the Limitations section of the applicable STC RFMS are contained in Soloy Corporation Service Bulletin 02-680, revised December 8, 1992. This incorporation by reference waspreviously approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51 as of December 30, 1991 (56 FR 63631, December 5, 1991). Copies may be obtained from Soloy Corporation, 450 Pat Kennedy Way SW., Olympia, Washington 98501-7298. Copies may be inspected at the FAA, Office of the Assistant Chief Counsel, 2601 Meacham Blvd., Room 663, Fort Worth, Texas; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (e) This amendment becomes effective on December 27, 1995.