# AD 93-25-03: Structural Integrity Of Wings - Type: Airworthiness directive - Status: Current - Products: Israel Aircraft Industries 1121, 1121A, 1121B and 1123 - Effective: January 19, 1994 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Large airplane - Amendment: 39-8769 - Docket: 93-NM-104-AD - Registered aircraft: 2 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A851945348200F3986256A2A0061C8B8.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/93-25-03 ## The airworthiness directive 93-25-03 ISRAEL AIRCRAFT INDUSTRIES (IAI) LTD.: Amendment 39-8769. Docket 93-NM-104-AD. Applicability: Model 1121 series airplanes, serial numbers 071 through 106 inclusive, and 108 through 150 inclusive; and Model 1123 series airplanes, serial number 107; certificated in any category. Compliance: Required as indicated, unless accomplished previously. To prevent reduced structural integrity of the wings, accomplish the following: (a) Within 50 hours time-in-service after the effective date of this AD, remove the left- and right-hand main landing gear (MLG) wheel fairings, and perform a visual inspection to detect damage of the wing lower center skin, lower aft skin, and rear spar under the fairings, in accordance with Israel Aircraft Industries Ltd. (1121 Commodore Jet) Service Bulletin SB 1121-57-018 (for Model 1121 series airplanes), dated November 25, 1992; or Israel Aircraft Industries Ltd. (1123-Westwind) Service Bulletin SB 1123-57-035 (for Model 1123 series airplanes), dated November 25, 1992; as applicable. (1) If no damage is detected, prior to further flight, rework the MLG wheel fairing ribs and reinstall the left- and right-hand MLG wheel fairings, in accordance with the applicable service bulletin. (2) If any damage is detected, prior to further flight, measure the depth of the damage, repair any damage found, rework the MLG wheel fairing ribs, and reinstall the left- and right-hand MLG wheel fairings, in accordance with the applicable service bulletin. (b) If any crack is detected during the repair required by paragraph (a)(2) of this AD, prior to further flight, repair in accordance with a method approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. (c) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, Standardization Branch, ANM-113, FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Standardization Branch, ANM-113. NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Standardization Branch, ANM-113. (d) 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. (e) The actions shall be done in accordance with Israel Aircraft Industries Ltd. (1121 Commodore Jet) Service Bulletin SB 1121-57-018, dated November 25, 1992; or Israel Aircraft Industries Ltd. (1123-Westwind) Service Bulletin SB 1123-57-035, dated November 25, 1992; as applicable. 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 Astra Jet Corporation, Technical Publications, 77 McCullough Drive, suite 11, New Castle, Delaware 19720. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. (f) This amendment becomes effective on January 19, 1994. ## Affected data sheets (1) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A2SW](https://openairdocs.org/tcds/A2SW): Israel Aircraft Industries Ltd.; names 4 of 6 models: 1121, 1121A, 1123, 1121B ## 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: 2 (2 by airframe model, 0 by engine model) - Makers: Aero Commander 2 Models with the most aircraft: - [Aero Commander 1121](https://openairdocs.org/model/aero-commander-1121): 1 aircraft (airframe model) - [Aero Commander 1121A](https://openairdocs.org/model/aero-commander-1121a): 1 aircraft (airframe model) All 2 models: https://openairdocs.org/ad/93-25-03/models.md Every aircraft: https://openairdocs.org/ad/93-25-03/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.