Airworthiness Directive · Amendment 39-18211 · Electrical power
Airbus Airplanes
This AD applies to the airplanes specified in paragraphs (c)(1), (c)(2), and (c)(3) of this AD, certificated in any category, all manufacturer serial numbers.
(1) Airbus Model A300 B2-1A, B2-1C, B2K-3C, B2-203, B4-2C, B4-103, and B4-203 airplanes.
(2) Airbus Model A300 B4-601, B4-603, B4-620, B4-622, B4-605R, B4-622R, F4-605R, and F4-622R airplanes.
(3) Airbus Model A300 C4-605R Variant F airplanes.
We are superseding Airworthiness Directive (AD) 2012-13-06, for all Airbus Model A300 series airplanes and all Model A300 B4-600, B4-600R, and F4-600R series airplanes, and Model A300 C4-605R Variant F airplanes (collectively called Model A300-600 series airplanes). AD 2012-13-06 required a one-time detailed inspection to determine the length of the fire shut-off valve (FSOV) bonding leads and for contact or chafing of the wires, and corrective actions if necessary. This new AD requires a new one-time detailed inspection of the FSOV bonding leads to ensure that the correct bonding leads are inspected, and corrective action if necessary. This AD was prompted by a determination that the description of the inspection area specified in the service information was misleading; therefore, some operators might have inspected incorrect bonding leads. We are issuing this AD to detect and correct contact or chafing of wires and the bonding leads, which, if not detected, could be a source of sparks in the wing trailing edge, and could lead to an uncontrolled engine fire.
At the applicable time specified in paragraph (g)(1) or (g)(2) of this AD: Do a one-time detailed inspection to determine the length of the FSOV bonding leads, and to detect contact or chafing of the wires located on the left-hand (LH) and right-hand (RH) sides of the wing rear spar, in accordance with the Accomplishment Instructions of Airbus Service Bulletin A300-24-0106, Revision 01, dated March 26, 2013 (for Model A300 series airplanes); or Airbus Service Bulletin A300-24-6108, Revision 01, dated March 26, 2013 (for Model A300-600 series airplanes); as applicable.
(1) For airplanes on which the inspection required by paragraph (g) of AD 2012-13-06, Amendment 39-17108 (77 FR 40485, July 10, 2012), has not been done as of the effective date of this AD: Inspect within 4,500 flight hours or 30 months after August 14, 2012 (the effective date of AD 2012-13-06), whichever occurs first.
(2) For airplanes on which the inspection required by paragraph (g) of AD 2012-13-06, Amendment 39-17108 (77 FR 40485, July 10, 2012), has been done as of the effective date of this AD: Inspect within 4,500 flight hours or 30 months after the effective date of this AD, whichever occurs first.
If, during the inspection required by paragraph (g) of this AD, the length of the bonding lead(s) is more than 80 millimeters (mm) (3.15 inches): Before further flight, replace the bonding lead(s) with a new bonding lead having a length equal to 80 mm ± 2 mm (3.15 inches) ± 0.08 inch, in accordance with the Accomplishment Instructions of the applicable service information identified in paragraph (g) of this AD.
If, during the inspection required by paragraph (g) of this AD, any contact or chafing of the wires is found, repair the wires before further flight, in accordance with the Accomplishment Instructions of the applicable service information identified in paragraph (g) of 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.
