2014-22-03: Main Rotor Drive

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 0 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] 0 2. The FAA amends Sec. 39.13 by removing Airworthiness Directive (AD) 2012-14-11, Amendment 39-17125 (77 FR 42971, July 23, 2012), and adding the following new AD: 2014-22-03 Various Restricted Category Helicopters: Amendment 39- 18008; Docket No. FAA-2014-0337; Directorate Identifier 2014-SW-029- AD. (a) Applicability This AD applies to Arrow Falcon Exporters, Inc. (AFE), Rotorcraft Development Corporation (RDC) (formerly Garlick Helicopter Corporation, and Garlick Helicopter, Inc.), and San Joaquin Helicopters (SJH) Model OH-58A, OH-58A+, and OH-58C helicopters, certificated in any category. (b) Unsafe Condition This AD defines the unsafe condition as a crack in the main rotor mast, which could result in failure of the mast and subsequent loss of control of the helicopter. (c) Affected AD This AD supersedes AD 2012-14-11, Amendment 39-17125 (77 FR 42971, July 23, 2012). (d) Effective Date This AD becomes effective December 19, 2014. (e) Compliance You are responsible for performing each action required by this AD within the specified compliance time unless it has already been accomplished prior to that time. (f) Required Actions (1) Within 90 days, unless accomplished previously within the last 12 months, and thereafter at intervals not exceeding 1,200 hours time-in-service or 3 years, whichever occurs earlier: (i) Remove any surface rust with a wire brush or steel wool and, using a 10X or higher power magnifying glass, inspect the areas of the mast as shown in area E and area J of Figure 1 to Paragraph (f) of this AD for pitting, corrosion, or a crack.(ii) Overhaul the main rotor mast assembly and magnetic particle inspect the mast; mast bearing nut; plate, mast and seal; and bearing liner for a crack. (iii) Fluorescent penetrant inspect the locking plate for a crack. [GRAPHIC] [TIFF OMITTED] TR14NO14.000 (2) If there is a crack, pitting, or corrosion, before further flight, replace the mast with an airworthy mast. (g) Alternative Methods of Compliance (AMOCs) (1) For AFE and SJH helicopters, the Manager, Los Angeles Aircraft Certification Office, FAA, may approve AMOCs for this AD. Send your proposal to: John Cecil, Aviation Safety Engineer, Los Angeles Aircraft Certification Office, Transport Airplane Directorate, FAA, 3960 Paramount Blvd., Lakewood, CA 90712; telephone (562) 627-5228; email john.cecil@faa.gov. (2) For RDC helicopters, the Manager, Denver Aircraft Certification Office, FAA, may approve AMOCs for this AD. Send your proposal to: Roger Caldwell, Aerospace Engineer, Denver Aircraft Certification Office, FAA, 26805 East 68th Ave., Room 214, Denver, CO 80249; telephone (303) 342-1086; email roger.caldwell@faa.gov. (3) For operations conducted under a 14 CFR part 119 operating certificate or under 14 CFR part 91, subpart K, we suggest that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office before [[Page 68111]] operating any aircraft complying with this AD through an AMOC. (h) Additional Information (1) Arrow Falcon Exporters, Inc., Alert Service Bulletin: 2012- 58-01, Revision 1, dated February 20, 2012, which is not incorporated by reference, contains more information about the subject of this AD. For Arrow Falcon Exporters, Inc. service information identified in this AD, contact Arrow Falcon Exporters, Inc., 2081 South Wildcat Way, Porterville, CA 93257; telephone (559) 781-8604; fax (559) 781-9271; email afe@arrowfalcon.com. (2) Rotorcraft Development Corporation Alert Service Bulletin No. OH58-13-01, dated January 30, 2013, which is not incorporated by reference, contains more information about the subject of this AD. For Rotorcraft Development Corporation service information, contact Rotorcraft Development Corporation, PO Box 430, 1004 Eastside Highway, Corvallis, MT 59828; telephone (406) 961-4100; fax (406) 961-4101; or at http://www.rotorcraftdevelopment.com. (3) United States Army Technical Manual Aviation Unit and Intermediate Maintenance Manual Army Model OH-58A and OH-58C Helicopters, TM 55-1520-228-23-1, which is not incorporated by reference, contains more information about the subject of this AD. For United States Army service information, contact Commander, U.S. Army Aviation and Missile Command, ATTN: AMSAM-MMA-NP, Redstone Arsenal, AL 35898-5000, telephone (256) 876-4044; or at https://www.logsa.army.mil/etmpdf/files/030000/035016.pdf. (4) You may review the service information at the FAA,Office of the Regional Counsel, Southwest Region, 2601 Meacham Blvd., Room 663, Fort Worth, Texas 76137. (i) Subject Joint Aircraft Service Component (JASC) Code: 6300: Main Rotor Drive.