Airworthiness Directive · Amendment 39-18761 · Fuel
Airbus Defense and Space S.A. (Formerly Known as Construcciones Aeronauticas, S.A.) Airplanes
This AD applies to Airbus Defense and Space S.A. (formerly known as Construcciones Aeronauticas, S.A.) Model CN-235, CN-235-100, CN-235-200, CN-235-300, and C-295 airplanes, certificated in any category, all manufacturer serial numbers.
We are superseding Airworthiness Directive (AD) 2013-23-02 for all Airbus Defense and Space S.A. Model CN-235, CN-235-100, CN-235-200, CN-235-300, and C-295 airplanes. AD 2013-23-02 required an inspection of the feeder cables of certain fuel booster pumps for damage (including, but not limited to, signs of electrical arcing and fuel leaks), and replacement if necessary. This new AD retains those requirements and also requires modification of the electrical installation of the fuel booster pumps. This AD was prompted by a report of an in-flight problem with the fuel transfer system. We are issuing this AD to address the unsafe condition on these products.
This paragraph restates the requirements of paragraph (g) of AD 2013-23-02, with no changes. Within the times specified in paragraph (g)(1) or (g)(2) of this AD, as applicable: Perform a detailed visual inspection for damage (including, but not limited to, signs of electrical arcing and fuel leaks) of the electrical feeder cables of each fuel booster pump having part number (P/N) 1C12-34 or 1C12-46, in accordance with the instructions of Airbus Military All Operator Letter 235-025, dated July 29, 2013 (for Model CN-235 airplanes); or Airbus Military All Operator Letter 295-025, Revision 01, dated August 1, 2013 (for Model C-295 airplanes).
(1) For each fuel booster pump that has not been replaced as of December 2, 2013 (the effective date of AD 2013-23-02): Prior to the accumulation of 300 total flight hours or within 5 flight cycles after December 2, 2013, whichever occurs later.
(2) For each fuel booster pump that has been replaced as of December 2, 2013 (the effective date of AD 2013-23-02): Within 300 flight hours since the most recent fuel booster pump replacement, or within 5 flight cycles after December 2, 2013, whichever occurs later.
This paragraph restates the requirements of paragraph (h) of AD 2013-23-02, with no changes. If any damage (including, but not limited to, signs of electrical arcing and fuel leaks) is found during the inspection required by paragraph (g) of this AD: Within the time specified in paragraph (h)(1) or (h)(2) of this AD, replace the affected fuel booster pump with a serviceable pump, in accordance with Airbus Military All Operator Letter 235-025, dated July 29, 2013 (for Model CN-235 airplanes); or Airbus Military All Operator Letter 295-025, Revision 01, dated August 1, 2013 (for Model C-295 airplanes).
(1) Before further flight.
(2) Within 10 days following the inspection, provided that the airplane is operated under the conditions specified in Airbus Military All Operator Letter 235-025, dated July 29, 2013 (for Model CN-235 airplanes); or Airbus Military All Operator Letter 295-025, Revision 01, dated August 1, 2013 (for Model C-295 airplanes).
For Airbus Defense and Space S.A. Model CN-235, CN-235-100, CN-235-200, and CN-235-300 airplanes: Within 12 months after the effective date of this AD, modify the electrical installation of the fuel booster pumps, in accordance with the Accomplishment Instructions of Airbus Defense and Space Service Bulletin SB-235-28-0023C, Revision 01, dated October 27, 2015. Accomplishing the modification terminates the requirements of paragraphs (g) and (h) of this AD for that airplane.
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.
