Airworthiness directives › 2015-06-04
AD 2015-06-04 Airworthiness Directives; Dassault Aviation Airplanes
Models named: FALCON 7X. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Dassault Aviation Model FALCON 7X airplanes, certificated in any category, all serial numbers.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
This paragraph restates the requirements of paragraph (h) of AD 2011-13-07, Amendment 39-16730 (76 FR 36283, June 22, 2011), with editorial changes. For airplanes on which M0566 or Dassault Service Bulletin Falcon 7X-100 has been accomplished: Within 14 days after July 27, 2011 (the effective date of AD 2011-13-07), revise the Limitations Section of the Dassault Falcon 7X AFM to include the statement in figure 1 to this paragraph. This may be done by inserting a copy of this AD in the AFM. When a statement identical to that in figure 1 to this paragraph 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. Accomplishing the revision required by paragraph (h) of this AD terminates the requirements of this paragraph, and after the revision required by paragraph (h) of this AD has been done, before further flight, remove the revision required by this paragraph. Figure 1 to Paragraph ( g ) of This AD—Retained AFM Language If radio-altimeter #1 lock-up conditions occur in flight, revert to the correct radio-altimeter output, in accordance with the instructions of Falcon 7X AFM procedure 3-140-65B and 3-140-70A. Dispatch of the airplane with any radio-altimeter inoperative is prohibited.
Unsafe condition
This AD was prompted by reports of untimely radio-altimeter lock-ups, where the failed radio-altimeter indicated a negative distance to the ground when the airplane was flying at medium or high altitude. We are issuing this AD to ensure that the flightcrew has procedures in the event of a radio-altimeter lock-up, which inhibits the display of warnings along with certain abnormal conditions, during the switch into landing mode during altitude cruise. If not corrected, this could result in the flightcrew being unaware of possible system failures that require immediate action by the flightcrew, leading to possible loss of control of the airplane.
Affected ADs
This AD replaces AD 2011-13-07, Amendment 39-16730 (76 FR 36283, June 22, 2011).
Read the original on the Federal Register →
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1