AD 93-20-05

93-20-05 AYRES CORPORATION: Amendment 39-8713; Docket No. 93-CE-30-AD.

Applicability: The following model and serial number airplanes, certificated in any category:

Models 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 T27-001 through T27-029 and T-27-031 (with or without DC suffix) S2R-T34 6000 through 6049, T34-001 through T34-180, T34-190, T34-191 and T34-192 (with or without DC suffix); T36-001 through T36-180 (with or without DC suffix); and T41-001 through T41-180 (with or without DC suffix) S2R-T45

T45-001 through T45-003 (with or without DC suffix) S2R-T65 T65-001 (with or without DC suffix) S2R-HG-T65 T65-002 through T65-010 (with or without DC suffix) S2RG6 G6-101 through G6-112 S2R-G10 G10-101

Compliance: Required as indicated, unless already accomplished.

NOTE 1: The compliance times specified in this AD take precedence over those referenced in Ayres Service Bulletin (SB) No. SB-AG-32, dated February 12, 1993.

To prevent structural damage to the vertical tail caused by a damaged vertical tail attachment bracket, which could result in loss of control of the airplane, accomplish the following:

(a) Within the next 50 hours time-in-service after the effective date of this AD, inspect the bracket that attaches the vertical tail front spar to the horizontal stabilizer for damage (cracks, broken lugs or bolts, or elongated holes) in accordance with the ACCOMPLISHMENT INSTRUCTIONS: I. Inspection, section of Ayres SB No. SB-AG-32, dated February 12, 1993.

(b) If any damage is found to the bracket during the inspection specified in paragraph (a) of this AD, prior to further flight, replace the bracket with an aluminum bracket, part number (P/N) 40301T007, and install a new close out plate, P/N 40309T003, in accordance with the ACCOMPLISHMENT INSTRUCTIONS: II. Repair, section of Ayres SB No. SB-AG-32, dated February 12, 1993.

(c) Within the next 100 hours TIS after the effective date of this AD, unless already accomplished in accordance with paragraph (b) of this AD, replace the bracket with an aluminum bracket, part number (P/N) 40301T007, and install a new close out plate, P/N 40309T003, in accordance with the ACCOMPLISHMENT INSTRUCTIONS: II. Repair, section of Ayres SB No. SB-AG-32, dated February 12, 1993.

(d) The replacement required by paragraph (c) of this AD may be accomplished instead of the inspection specified in paragraph (a) of this AD provided it is accomplished at or prior to the 50-hour TIS compliance time.

(e) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished.

(f) 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 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Atlanta Aircraft Certification Office.

(g) The inspection and replacement required by this AD shall be done in accordance with Ayres Service Bulletin No. SB-AG-32, dated February 12, 1993. 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 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.

(h) This amendment (39-8713) becomes effective on December 3, 1993.