Airworthiness directives › 2015-02-02
AD 2015-02-02 Airworthiness Directives; Bombardier, Inc. Airplanes
Applicability*9
This AD applies to the Bombardier, Inc. airplanes, certificated in any category, identified in paragraphs (c)(1) and (c)(2) of this AD. (1) Model CL-215-6B11 (CL-215T Variant) airplanes, serial numbers 1056 through 1125 inclusive. (2) Model CL-215-6B11 (CL-415 Variant) airplanes, serial numbers 2001 through 2990 inclusive.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within 3 months after the effective date of this AD, apply grease to the bearing, and do a general visual inspection of the expelled old grease for any contaminants ( i.e. ashes, dust, and algae), metal wear, and indication of corrosion, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin 215-A3171, Revision 1, dated January 25, 2012 (for Model CL-215-6B11 (CL-215T Variant) airplanes); or Bombardier Alert Service Bulletin 215-A4452, Revision 1, dated January 3, 2012 (for Model CL-215-6B11 (CL-415 Variant) airplanes). If any contaminants ( i.e., ashes, dust, and algae), metal wear, or indication of corrosion are found, before further flight, replace the bearing with a new bearing, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin 215-A3171, Revision 1, dated January 25, 2012 (for Model CL-215-6B11 (CL-215T Variant) airplanes); or Bombardier Alert Service Bulletin 215-A4452, Revision 1, dated January 3, 2012 (for Model CL-215-6B11 (CL-415 Variant) airplanes). Repeat the inspection, thereafter, before and after each fire season or at intervals not to exceed 6 months, whichever occurs first. Note 1 to paragraph (g) of this AD: It is suggested that paragraph (g) of this AD be carried out in conjunction with AD 2009-05-04, Amendment 39-15828 (74 FR 8860, February 27, 2009), as the task and task intervals are in the same general area.
Unsafe condition
This AD was prompted by a report that, during a routine inspection, corrosion was discovered on the lower bearing of the rudder upper torque tube. We are issuing this AD to prevent corroded bearings, which could result in a partial or total loss of axial support.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1