AD 98-09-26 Airworthiness Directives; Dassault Model Falcon 2000 Series Airplanes

Models named: Falcon 2000 series. Read the applicability below — it usually turns on serial or part numbers too.

Model Falcon 2000 series airplanes; serial numbers 2 through 49 inclusive, and 51; certificated in any category. Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (d) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.

Required as indicated, unless accomplished previously. To prevent fatigue cracking of the fuel line at the pressure switch pickoff point, which could result in fuel leakage and potential engine fire, accomplish the following: (a) Within 5 days after the effective date of this AD, revise the Limitations and Abnormal Procedures Sections of the FAA-approved Airplane Flight Manual (AFM) to include the following procedures, which will enable the flightcrew to monitor and properly set the fuel booster pump pressure. This may be accomplished by inserting a copy of this AD in the AFM. ``FILING INSTRUCTIONS Insert this page adjacent to page 3-160-1. FUEL--LOW BOOSTER PUMP PRESSURE Until compliance with SB F2000-123, the paragraph ``If FUEL.. light remains on:'' is modified as follows: ________ If FUEL.. light remains on: X-BP rotary switch.............. Closed X-BP light...................... Out-Checked Associated fuel quantity Monitored indicator. ESS/RH bus tie rotary switch.... Tied Associated engine power lever... IDLE detent Associated engine FUEL ENG OFF switch. Associated engine FUEL SHUT-OFF Actuated switch. Associated ENG ANTI-ICE switch.. Off Associated GEN switch........... Off ________ If engine 2 is shutdown, complete the above procedure with: HYDR 2 ISOL switch.............. OPEN'' Note 2: The revision of the AFM required by this paragraph may be accomplished by inserting a copy of Falcon 2000 AFM Temporary Change No. 65 in the AFM. When this temporary change has been incorporated into general revisions of the AFM, the general revisions may be inserted in the AFM, provided the information contained in the general revision is identical to that specified in Falcon 2000 AFM Temporary Change No. 65. (b) Within 5 days after the effective date of this AD, perform a visual inspection of the fuel lines to detect fatigue cracking and fuel leakage, in accordance with Procedure 05.100 of Chapter 5.40 of Revision 4 of the Dassault Aviation Falcon 2000 Airplane Maintenance Manual. (1) If no discrepancy is detected, repeat the visual inspection daily thereafter until the requirements of paragraph (c) of this AD have been accomplished. (2) If any discrepancy is detected, prior to further flight, accomplish the requirements of paragraph (c) of this AD. (c) Within 45 days after the effective date of this AD, accomplish the actions specified in paragraphs (c)(1) and (c)(2) of this AD, in accordance with Dassault Aviation Service Bulletin F2000-123 (F2000-28-7), dated November 14, 1997. (1) Perform a one-time dye penetrant inspection of the fuel lines to detect cracking. If any cracking is detected, prior to further flight, replace the discrepant part with a new part, in accordance with the service bulletin. And (2) Install new brackets between the pressure switch and the fuel pump of each engine in accordance with the service bulletin. Accomplishment of this installation constitutes terminating action for the requirements of paragraphs (a) and (b) of this AD. Following accomplishment of paragraph (c) of this AD, the AFM revision required by paragraph (a) may be removed from the AFM. (d) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, International Branch, ANM-116, FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, International Branch, ANM-116. Note 3: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the International Branch, ANM-116. (e) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR [[Page 23662]] 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished. (f) Except as required by paragraph (b) of this AD, the actions shall be done in accordance with Dassault Aviation Service Bulletin F2000-123 (F2000-28-7), dated November 14, 1997. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. Copies may be obtained from Dassault Falcon Jet, P.O. Box 2000, South Hackensack, New Jersey 07606. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. Note 4: The subject of this AD is addressed in French airworthiness directive 98-020-005(B), dated January 28, 1998. (g) This amendment becomes effective on May 15, 1998. Issued in Renton, Washington, on April 22, 1998. Gary L. Killion, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 98-11315 Filed 4-29-98; 8:45 am] BILLING CODE 4910-13-U