Airworthiness Directive · Amendment 39-15933 · Fuselage
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 superseding an existing airworthiness directive (AD), which applies to all BAE Systems (Operations) Limited Model BAe 146 and Avro 146-RJ airplanes. That AD currently requires repetitive inspections for corrosion of frames 15, 18, 41, and 43 and applicable related investigative and corrective actions. The existing AD also provides an optional action that would extend the repetitive inspection interval. This new AD also requires a high frequency eddy current inspection for corrosion of the outer frame flanges and door hinge bosses of frames 15, 18, 41, and 43. This AD results from a report indicating that corrosion has been detected in the outer frame flanges and door hinge bosses during scheduled maintenance. We are issuing this AD to prevent reduced structural integrity of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Use high-frequency eddy current (HFEC) and detailed methods to inspect for signs of corrosion (including cracks, blistering, or flaking paint) of frames 15, 18, 41, and 43, in accordance with the Accomplishment Instructions of BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-182, dated March 16, 2005, except as required by paragraph (k) of this AD. Inspect at the applicable time specified in 1.D. “Compliance” of BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-182, dated March 16, 2005. Application of corrosion-preventive treatment, in accordance with BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-182, dated March 16, 2005; or Revision 1, dated August 6, 2007; extends the repetitive inspection interval, as specified in Table 2 in 1.D. “Compliance” of BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-182, dated March 16, 2005.
Note 1: For the purposes of this AD, a detailed inspection is: “An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required.”
If any discrepancy is found during any inspection required by paragraph (g) of this AD: Before further flight, perform applicable related investigative/corrective actions in accordance with the Accomplishment Instructions of BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-182, dated March 16, 2005, except as required by paragraphs (i) and (k) of this AD.
(i) If BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-182, dated March 16, 2005, specifies to contact the manufacturer for appropriate action, before further flight, repair per a method approved by the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; or the Civil Aviation Authority (or its delegated agent); or European Aviation Safety Agency (EASA) (or its delegated agent).
(j) Where BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-182, dated March 16, 2005, specifies a compliance time after the issuance of the service bulletin, this AD requires compliance within the specified compliance time after July 17, 2006 (the effective date of AD 2006-12-09). Where BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-182, dated March 16, 2005, specifies a compliance time “since date of construction” of the airplane, this AD requires compliance since the date of issuance of the original standard airworthiness certificate or the date of issuance of the original export certificate of airworthiness.
As of the effective date of this AD: Do the actions required by paragraphs (g) and (h) of this AD in accordance with the Accomplishment Instructions of BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-182, Revision 1, dated August 6, 2007, except as required by paragraph (n) of this AD.
At the applicable compliance time specified in paragraph (g) of this AD, except as provided by paragraph (o) of this AD; or within six months after the effective date of this AD; whichever occurs later: Do an HFEC inspection for corrosion of the outer frame flanges and door hinge bosses of frames 15, 18, 41, and 43, in accordance with the Accomplishment Instructions of BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-182, Revision 1, dated August 6, 2007 (“the service bulletin”). Repeat the inspection thereafter at the applicable time specified in paragraph 1.D., “Compliance,” of the service bulletin. Application of corrosion-preventive treatment, in accordance with the Accomplishment Instructions of the service bulletin, extends the repetitive inspection interval, as specified in Table 2 in paragraph 1.D., “Compliance,” of the service bulletin.
If any discrepancy is found during any inspection required by paragraph (l) of this AD: Before further flight, perform applicable related investigative/corrective actions in accordance with the Accomplishment Instructions of BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-182, Revision 1, dated August 6, 2007, except as required by paragraph (n) of this AD.
If BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-182, Revision 1, dated August 6, 2007, specifies to contact the manufacturer for appropriate action, before further flight, repair per a method approved by the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; or EASA (or its delegated agent).
(o) Where BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-182, Revision 1, dated August 6, 2007, specifies a compliance time after the issuance of the service bulletin, this AD requires compliance within the specified compliance time after the effective date of this AD. Where BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-182, Revision 1, dated August 6, 2007, specifies a compliance time “since date of construction” of the airplane, this AD requires compliance since the date of issuance of the original airworthiness certificate or the date of issuance of the original export certificate of airworthiness.
Although BAE Systems (Operations) Limited Inspection Service Bulletin ISB.53-182, dated March 16, 2005; and Revision 1, dated August 6, 2007; specify to submit information to the manufacturer, this AD does not include such a 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.
