Airworthiness Directive · Amendment 39-13723 · Israel Aircraft Industries, Ltd., Model 1121, 1121A, 1121B, 1123, 1124, and 1124A Series Airplanes
Israel Aircraft Industries, Ltd., Model 1121, 1121A, 1121B, 1123, 1124, and 1124A Series Airplanes
All Model 1121, 1121A, 1121B, 1123, 1124, and 1124A series airplanes; certificated in any category.
This amendment adopts a new airworthiness directive (AD), applicable to all Israel Aircraft Industries, Ltd., Model 1121, 1121A, 1121B, 1123, 1124, and 1124A series airplanes, that requires a one-time inspection to detect cracking and other discrepancies of both sides of the rudder skins and ribs, forward to aft on each spar, to detect cracks below the skin surface; and corrective action if necessary. This action is necessary to detect and correct cracking of the skins of the rudder assembly, which could result in reduced structural capability of the rudder and reduced controllability of the airplane. This action is intended to address the identified unsafe condition.
To detect and correct cracking of the skins of the rudder assembly, which could result in reduced structural capability of the rudder and reduced controllability of the airplane, accomplish the following:
(a) Within 50 flight hours after the effective date of this AD, do detailed and x-ray inspections to detect discrepancies (including cracking, loose rivets, and distorted rivet heads) of both sides of the rudder skins and ribs, forward to aft on each spar, in accordance with the applicable service bulletin identified in Table 1 of this AD. Although the service bulletin referenced in this AD specifies to submit certain information to the manufacturer, this AD does not include such a requirement.
| For— | Inspect in accordance with— |
|---|---|
| Model 1121, 1121A, and 1121B series airplanes | 1121 Commodore Jet (Israel Aircraft Industries) Service Bulletin 1121-55-030, Revision 1, dated June 23, 2003. |
| Model 1123 series airplanes | 1123—Westwind (Israel Aircraft Industries) Service Bulletin 1123-55-056, Revision 1, dated June 23, 2003. |
| Model 1124 and 1124A series airplanes | 1124—Westwind (Israel Aircraft Industries) Service Bulletin 1124-55-150, Revision 1, dated June 23, 2003. |
Note 1: For the purposes of this AD, a detailed inspection is defined as: “An intensive visual examination of a specific structural area, system, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at intensity deemed appropriate by the inspector. Inspection aids such as mirror, magnifying lenses, etc., may be used. Surface cleaning and elaborate access procedures may be required.”
(b) If any discrepancy is found during any inspection required by paragraph (a) of this AD: Before further flight, repair it in accordance with a method approved by either the Manager, International Branch, ANM-116, FAA, Transport Airplane Directorate; or the Civil Aviation Administration of Israel (CAAI) (or its delegated agent).
(c) As of the effective date of this AD, no person may install a rudder on any airplane, unless the actions required by this AD have been accomplished.
(d) In accordance with 14 CFR 39.19, the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA, is authorized to approve alternative methods of compliance for this AD.
(e) Unless otherwise specified in this AD, the actions must be done in accordance with the applicable service bulletin listed in Table 2 of this AD.
| Service bulletin | Revision level | Date |
|---|---|---|
| 1121—Commodore Jet (Israel Aircraft Industries) Service Bulletin 1121-55-030 | 1 | June 23, 2003. |
| 1123—Westwind (Israel Aircraft Industries) Service Bulletin 1123-55-056 | 1 | June 23, 2003 |
| 1124—Westwind (Israel Aircraft Industries) Service Bulletin 1124-55-150 | 1 | June 23, 2003 |
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 Gulfstream Aerospace Corporation, P.O. Box 2206, Mail Station D25, Savannah, Georgia 31402. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
Note 2: The subject of this AD is addressed in Israeli airworthiness directive 55-02-12-04R1, dated December 10, 2003.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
