Airworthiness Directive · Amendment 39-14828 · BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ Airplanes
BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ Airplanes
This AD applies to all BAE Systems (Operations) Limited Model BAe 146-100A, -200A, and -300A series airplanes; and Model Avro 146-RJ70A, 146-RJ85A, and 146-RJ100A airplanes; certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ airplanes. This AD requires modifying the nose landing gear. This AD results from reports of loss of the nose wheel assembly. We are issuing this AD to prevent the nose wheel nut from loosening, and consequently, the nose wheel assembly detaching from the airplane; and to prevent the nose wheel clamping loads from applying to the machined radius at the root of the stub axle, which could result in damage to the nose landing gear.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 12 months after the effective date of this AD, modify the nose landing gear in accordance with the Accomplishment Instructions of BAE Systems (Operations) Limited Modification Service Bulletin 32-174-70676A, dated February 21, 2006.
Note 1: BAE Systems (Operations) Limited Modification Service Bulletin 32-174-70676A refers to Messier-Dowty Service Bulletin 146-32-161, dated March 2, 2005, as an additional source of service information for accomplishing the modification.
Note 2: BAE Systems (Operations) Limited Modification Service Bulletin 32-174-70676A refers to the abutment ring as a spacer. BAE Systems (Operations) Limited BAe 146/Avro 146-RJ Airplane Maintenance Manual (AMM) 32-42-17 401 identifies this part as an abutment ring (item 4). Item 3 of the AMM is identified as a spacer, but this is not the part described in the modification service bulletin.
Although the service bulletin referenced in this AD specifies to submit certain information to the manufacturer, this AD does not include that requirement.
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.
