2011-06-04: Fuel

2011-06-04 Airbus: Amendment 39-16628. Docket No. FAA-2011-0156; Directorate Identifier 2010-NM-231-AD. Effective Date (a) This airworthiness directive (AD) becomes effective March 25, 2011. Affected ADs (b) None. Applicability (c) This AD applies to Airbus Model A330-243F airplanes; certificated in any category; all manufacturer serial numbers on which Airbus modification 56966H16199 has been embodied in production or Airbus Service Bulletin A330-28-3105 has been embodied in service;. Subject (d) Air Transport Association (ATA) of America Code 28: Fuel. Reason (e) The mandatory continued airworthiness information (MCAI) states: During a recent in-service event the flight crew of a Trent 700 powered A330 aircraft reported a temporary Engine Pressure Ratio (EPR) shortfall on engine 2 during the take-off phase of the flight. * * * Data analysis confirmed a temporary fuel flow restriction and subsequent recovery, and indicated that also engine 1 experienced a temporary fuel flow restriction shortly after the initial event on engine 2 * * *. Based on previous industry-wide experience, the investigation of the event has focused on the possibility for ice to temporarily restrict the fuel flow. * * * * * * The scenario of ice being shed and causing a temporary blockage in the engine fuel system may lead to a temporary fuel flow restriction to the engine. This may result in a possible engine surge or stall condition, and in the engine not being able to provide the commanded thrust. * * * * * Compliance (f) You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Inoperative Fuel Pump Prohibition (g) Dispatch of an airplane with any inoperative main fuel pump is prohibited as of the effective date of this AD. Airplane Flight Manual Revision (h) Before further flight after the effective date of this AD, revise the Limitations section of the airplane flight manual (AFM) to include the following statement. This may be done by inserting a copy of this AD into the AFM. ``Dispatch with any inoperative main fuel pump is prohibited.'' Note 1: When a statement identical to that in paragraph (h) of this AD has been included in the general revisions of the AFM, the general revisions may be inserted into the AFM, and the copy of this AD may be removed from the AFM. FAA AD Differences Note 2: This AD differs from the MCAI and/or service information as follows: EASA AD 2010-0132, dated June 28, 2010, affected certain Model A330-243, -243F, -341, -342, and -343 airplanes. This AD affects only the newly certified Model A330-243F airplanes. FAA AD 2010-08-08 addresses the identical unsafe condition for the Model A330-243, -341, -342, and -343 airplanes. Other FAA AD Provisions (i) The following provisions also apply to this AD: (1)Alternative Methods of Compliance (AMOCs): The Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the ACO, send it to Attn: Vladimir Ulyanov, Aerospace Engineer, International Branch, ANM-116, Transport Airplane Directorate, FAA, 1601 Lind Avenue, SW., Renton, Washington 98057-3356; phone: 425-227-1138; fax: 425-227-1149. Information may be e-mailed to: [email protected]. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. The AMOC approval letter must specifically reference this AD. (2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it is returned to service. Related Information (j) Refer to Airworthiness Information (MCAI) EASA Airworthiness Directive 2010-0132, dated June 28, 2010, for related information. [[Page 13078]] Material Incorporated by Reference (k) None.