# AD 93-01-03: Wing Front Spar - Type: Airworthiness directive - Status: Current - Products: Thrush 600 S-2D, S-2R, S2R-G6, S2R-R1340, S2R-R1820, S2R-R3S, S2R-T11, S2R-T15, S2R-T34, S2R-T45, S2R-T65 and S2RHG-T65 - Effective: February 5, 1993 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Small airplane - Amendment: 39-8456 - Docket: 92-CE-44-AD - Registered aircraft: 98 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/278FC2027151F24F86256A4D0066C80D.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/93-01-03 ## The airworthiness directive 93-01-03 AYRES CORPORATION: Amendment 39-8456. Docket No. 92-CE-44-AD. Applicability: The following model and serial number airplanes, certificated in any category: Models Serial Numbers S2D all serial numbers S2R 5000 through 5099, 1380R, and 1416R through 2583R S2R-R1340 R1340-001 through R1340-030 (with or without DC suffix) S2R-R3S R3S-001 through R3S-011 (with or without DC suffix) S2R-R1820 R1820-001 through R1820-035 (with or without DC suffix) S2R-T11 T11-001 through T11-005 (with or without DC suffix) S2R-T15 T15-001 through T15-029 (with or without DC suffix) and T15-031 (with or without DC suffix); and T27-001 through T27-029 (with or without DC suffix) and T27-031 (with or without DC suffix) S2R-T34 6000 through 6049, T34-001 through T34-178 (with or without DC suffix) and T34-180 (with or without DC suffix); and T41-001 through T41-178 (with or without DC suffix) and T41-180 (with or without DC suffix) S2R-T45 T45-001 through T45-003 (with or without DC suffix) S2R-T65 and S2RHG-T65 T65-001 through T65-010 (with or without DC suffix S2R-G6 G6-101 through G6-107 (with or without DC suffix) Compliance: Required within the next 3 calendar months after the effective date of this AD, unless already accomplished, and thereafter at intervals not to exceed 12 calendar months. To prevent wing structural damage that, if not detected, could progress to the point of failure, accomplish the following: (a) Inspect the wing front spar for corrosion in accordance with the "ACCOMPLISHMENT INSTRUCTIONS: I. Inspection of Front Spar" section of Ayres Service Bulletin (SB) No. SB-AG-29, dated June 15, 1992. (b) If corrosion is found, prior to further flight, treat and repair the corrosion damage in accordance with the "ACCOMPLISHMENT INSTRUCTIONS: II. Repairs" section of Ayres SB No. SB-AG-29, dated June 15, 1992. (c) Special flight permits may be issued in accordance with FAR 21.197 and21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. (d) An alternative method of compliance or adjustment of the initial or repetitive compliance times that provides an equivalent level of safety may be approved by the Manager, Atlanta Aircraft Certification Office, 1669 Phoenix Parkway, Suite 210C, Atlanta, Georgia 30349. The request shall be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Atlanta Aircraft Certification Office. NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Atlanta Aircraft Certification Office. (e) The inspections required by this AD shall be done in accordance with Ayres Service Bulletin No. SB-AG-29, dated June 15, 1992. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFRPart 51. Copies may be obtained from the Ayres Corporation, P.O. Box 3090, Albany, Georgia 31708. Copies may be inspected at the FAA, Central Region, Office of the Assistant Chief 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. (f) This amendment becomes effective on February 5, 1993. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A4SW](https://openairdocs.org/tcds/A4SW): Thrush Aircraft LLC; names 5 of 19 models: S2R-T65, S2RHG-T65, S2R-G6, S2R-R1820, S2R-T45 ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 98 (98 by airframe model, 0 by engine model) - Makers: Thrush 56, Ayres 42 Models with the most aircraft: - [Thrush S2R-T34](https://openairdocs.org/model/thrush-s2r-t34): 43 aircraft (airframe model) - [Ayres S2R-G6](https://openairdocs.org/model/ayres-s2r-g6): 28 aircraft (airframe model) - [Thrush S2RHG-T65](https://openairdocs.org/model/thrush-s2rhg-t65): 10 aircraft (airframe model) - [Ayres S2R-T45](https://openairdocs.org/model/ayres-s2r-t45): 8 aircraft (airframe model) - [Ayres S2R-R1820](https://openairdocs.org/model/ayres-s2r-r1820): 5 aircraft (airframe model) - [Thrush S2R-T65](https://openairdocs.org/model/thrush-s2r-t65): 2 aircraft (airframe model) - [Ayres S2R-T65](https://openairdocs.org/model/ayres-s2r-t65): 1 aircraft (airframe model) - [Thrush S-2R](https://openairdocs.org/model/thrush-s-2r): 1 aircraft (airframe model) All 10 models: https://openairdocs.org/ad/93-01-03/models.md Every aircraft: https://openairdocs.org/ad/93-01-03/aircraft.md Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.