Airworthiness Directive · Amendment 39-19104 · Ice and rain protection
Dassault Aviation Airplanes
This AD applies to the Dassault Aviation airplanes identified in paragraphs (c)(1) and (c)(2) of this AD, certificated in any category.
(1) Model FALCON 900EX airplanes, serial numbers (S/Ns) 270 through 291 inclusive and 294.
(2) Model FALCON 2000EX airplanes, S/Ns 263 through 305 inclusive, 307 through 313 inclusive, 315, 320, and 701 through 734 inclusive.
We are superseding Airworthiness Directive (AD) 2017-19-17, which applied to certain Dassault Aviation Model FALCON 900EX and FALCON 2000EX airplanes. AD 2017-19-17 required revising the airplane flight manual (AFM) to include procedures to follow when an airplane is operating in icing conditions. AD 2017-19-17 also required a detailed inspection of the wing anti-ice system ducting for the presence of a diaphragm, and follow-on actions (replacement of ducting or re- identification of the ducting part marking). This new AD retains the actions required by AD 2017-19-17, and corrects the follow-on actions for certain airplanes. This AD was prompted by a determination that the follow-on actions specified in AD 2017-19-17 were incorrect for certain airplanes. We are issuing this AD to address the unsafe condition on these products.
This paragraph restates the requirements of paragraph (g) of AD 2017-19-17, with no changes.
(1) For Model FALCON 900EX airplanes on which the actions specified in Dassault Service Bulletin F900EX-464 have not been accomplished: Within 10 flight cycles after September 6, 2016 (the effective date of AD 2016-17-02, Amendment 39-18615 (81 FR 55366, August 19, 2016) (“AD 2016-17-02”)), revise Section 4-200-05A, “OPERATION IN ICING CONDITIONS,” of the Model FALCON 900EX AFM to include the information in figure 1 to paragraph (g)(1) of this AD, and thereafter operate the airplane accordingly. The AFM revision may be done by inserting a copy of this AD into the AFM.
(2) For Model FALCON 2000EX airplanes on which the actions specified in Dassault Service Bulletin F2000EX-393 have not been accomplished: Within 10 flight cycles after September 6, 2016 (the effective date of AD 2016-17-02), revise Section 4-200-05A, “OPERATION IN ICING CONDITIONS,” of the Model FALCON 2000EX AFM to include the information in figure 2 to paragraph (g)(2) of this AD, and thereafter operate the airplane accordingly. The AFM revision may be done by inserting a copy of this AD into the AFM.
This paragraph restates the requirements of paragraph (h) of AD 2017-19-17, with revised affected airplanes. For Model FALCON 900EX airplanes: Within 9 months after October 27, 2017 (the effective date of AD 2017-19-17), do a detailed inspection of the wing anti-ice system ducting (anti-ice pipe) for the presence of a diaphragm, and do all applicable actions specified in paragraph (h)(1) or (h)(2) of this AD, in accordance with the Accomplishment Instructions of Dassault Service Bulletin F900EX-464, dated June 20, 2016. After the applicable actions specified in paragraph (h)(1) or (h)(2) of this AD have been completed, the AFM revision required by paragraph (g) of this AD may be removed from the AFM for that airplane.
(1) If during the inspection required by the introductory text to paragraph (h) of this AD it is determined that a diaphragm is present: Before further flight, replace the wing anti-ice system ducting.
(2) If during the inspection required by the introductory text to paragraph (h) of this AD it is determined that a diaphragm is not present: Before further flight, do a check of the anti-ice pipe part number and re-identify the wing anti-ice system ducting.
For Model FALCON 2000EX airplanes: Within 9 months after the effective date of this AD, do a detailed inspection of the wing anti-ice system ducting (anti-ice pipe) for the presence of a diaphragm, and do all applicable actions specified in paragraph (i)(1) or (i)(2) of this AD, in accordance with the Accomplishment Instructions of Dassault Service Bulletin F2000EX-393, dated June 20, 2016. After the applicable actions specified in paragraph (i)(1) or (i)(2) of this AD have been completed, the AFM revision required by paragraph (g) of this AD may be removed from the AFM for that airplane.
(1) If during the inspection required by the introductory text to paragraph (i) of this AD it is determined that a diaphragm is not present: Before further flight, replace the wing anti-ice system ducting.
(2) If during the inspection required by the introductory text to paragraph (i) of this AD it is determined that a diaphragm is present: Before further flight, do a check of the anti-ice pipe part number and re-identify the wing anti-ice system ducting.
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.
