Airworthiness Directive · Amendment 39-11728 · Israel Aircraft Industries, Ltd., Model 1124 and 1124A Westwind Airplanes
Israel Aircraft Industries, Ltd., Model 1124 and 1124A Westwind Airplanes
Model 1124 and 1124A Westwind airplanes having serial numbers (S/N) 297, 304, and 400 through 410 inclusive; certificated in any category.
Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (b) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.
This amendment adopts a new airworthiness directive (AD) that is applicable to certain Israel Aircraft Industries, Ltd., Model 1124 and 1124A Westwind airplanes. This action requires a one-time X-ray inspection to detect missing rivets at the rib-to-spar connection of the aileron ribs, and corrective actions, if necessary. This action is necessary to prevent cracking of the aileron skin due to missing rivets, which could result in reduced structural integrity of the aileron and consequent reduced controllability of the airplane. This action is intended to address the identified unsafe condition.
To prevent cracking of the aileron skin due to missing rivets, which could result in reduced structural integrity of the aileron and consequent reduced controllability of the airplane, accomplish the following:
(a) Within 200 flight hours after the effective date of this AD, perform a one-time X-ray inspection to detect missing rivets at the rib-to-spar connection of the aileron ribs, left and right sides, at work stations (WS) 158.00 to WS 246.00, in accordance with Israel 1124 Westwind Alert Service Bulletin No. 1124-27A-145, dated March 24, 2000.
(1) If all rivets are installed, no further action is required by this AD.
(2) If any rivet is missing, prior to further flight, replace the aileron with a new or serviceable aileron, in accordance with Israel Aircraft Industries 1124/1124A Westwind Maintenance Manual, or repair the aileron 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). For a repair method to be approved by the Manager, International Branch, ANM-116, as required by this paragraph, the Manager's approval letter must specifically reference this AD.
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
