Airworthiness Directive · Amendment 39-19055 · Fuel
Airbus Defense and Space S.A. (Formerly Known as Construcciones Aeronauticas, S.A.) Airplanes
Superseded. A later AD replaced this one: AD 2021-06-08. Comply with the one in force.
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, and CN-235-300 airplanes; and Model C-295 airplanes; certificated in any category, all manufacturer serial numbers.
We are adopting a new airworthiness directive (AD) for all Airbus Defense and Space S.A. Model CN-235, CN-235-100, CN-235-200, and CN-235-300 airplanes; and Model C-295 airplanes. This AD was prompted by reports of leakage of motorized cross-feed fuel valves. This AD requires repetitive inspections and operational checks of the affected fuel valves, and corrective actions if necessary. We are issuing this AD to address the unsafe condition on these products.
Within the applicable compliance time defined in paragraph (g)(1) or (g)(2) of this AD: Do an initial general visual inspection of each motorized fuel valve having part number (P/N) 7923227F for the presence of fuel on the electrical connectors and inside the receptacles, in accordance with the instructions of Airbus Defense and Space Alert Operators Transmission (AOT) AOT-CN235-28-0001, Revision 1; or Airbus Defense and Space AOT AOT-C295-28-0001, Revision 1, both dated September 27, 2016, as applicable. Repeat the inspection thereafter at intervals not to exceed 300 flight hours.
(1) For airplanes that, as of the effective date of this AD, have accumulated 6,000 flight cycles or more since first flight of the airplane: Do the inspection within 30 flight cycles or 30 days after the effective date of this AD, whichever occurs first.
(2) For airplanes that, as of the effective date of this AD, have accumulated less than 6,000 flight cycles since first flight of the airplane: Do the inspection within 300 flight hours or 30 days after the effective date of this AD, whichever occurs later.
If, during any inspection required by paragraph (g) of this AD, any leaking of a motorized fuel valve having P/N 7923227F is detected: Before the next flight, replace the affected fuel valve with a serviceable part, in accordance with the instructions of Airbus Defense and Space AOT AOT-CN235-28-0001, Revision 1; or Airbus Defense and Space AOT AOT-C295-28-0001, Revision 1, both dated September 27, 2016, as applicable. A serviceable part is defined as a part that is not defective; it could be a used or new part. Replacement of a motorized fuel valve on an airplane does not constitute terminating action for the repetitive inspections required by paragraph (g) of this AD for that airplane.
Within 12 months after the effective date of this AD, and thereafter at intervals not to exceed 12 months, accomplish an operational check of each motorized fuel valve P/N 7923227F, in accordance with the instructions of Airbus Defense and Space AOT AOT-CN235-28-0001, Revision 1; or Airbus Defense and Space AOT AOT-C295-28-0001, Revision 1, both dated September 27, 2016, as applicable.
If, during any operational check, as required by paragraph (i) of this AD, any discrepancy is detected, as described in Airbus Defense and Space AOT AOT-CN235-28-0001, Revision 1; or Airbus Defense and Space AOT AOT-C295-28-0001, Revision 1, both dated September 27, 2016, as applicable: Before further flight, contact the Manager, International Section, Transport Standards Branch, FAA; or the European Aviation Safety Agency (EASA); or Airbus Defense and Space S.A.'s EASA Design Organization Approval (DOA) to obtain instructions for corrective actions, and within the compliance time indicated in those instructions accomplish the corrective actions accordingly.
As of the effective date of this AD, replacement of a motorized fuel valve having P/N 7923227F with a serviceable part on an airplane is allowed, provided that, within 30 flight cycles or 30 days, whichever occurs first after installation, the part passes an inspection done in accordance with the instructions of Airbus Defense and Space AOT AOT-CN235-28-0001, Revision 1; or Airbus Defense and Space AOT AOT-C295-28-0001, Revision 1, both dated September 27, 2016, as applicable.
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.
