Airworthiness Directive · Amendment 39-13987 · Dassault Model Falcon 2000EX and 900EX Series Airplanes
Dassault Model Falcon 2000EX and 900EX Series Airplanes
Superseded. A later AD replaced this one: AD 2007-19-11. Comply with the one in force.
This AD applies to Dassault Model Falcon 2000EX series airplanes with serial numbers 6, 28 and subsequent; and Model Falcon 900EX series airplanes with serial numbers 97, 120 and subsequent; certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for certain Dassault Model Falcon 2000EX and 900EX series airplanes. This AD requires prohibiting dispatch with certain equipment inoperative; and revising the airplane flight manual to facilitate recovery of the cockpit display units in the event of an avionics standard communication bus (ASCB) failure and to inform the flightcrew what equipment is inoperative during an ASCB failure. This AD also requires doing an integrity check of the ASCB for any faults and corrective action if necessary, and installing an avionics software update to the Honeywell Primus Epic system. This AD is prompted by a report that an analysis and tests of the Honeywell Primus Epic systems installed on the Model Falcon 2000EX and 900EX series airplanes revealed that all information displayed on the cockpit display units could become invalid during flight. We are issuing this AD to prevent a loss of data from all four of the cockpit display units, and loss of all radio communications (with the exception of VHF emergency frequency and last frequency used), primary navigation instruments, autopilot, auto- throttle, central alerting system, aural alarms, and normal braking (on Model Falcon 2000EX series airplanes only). These losses could reduce the flightcrew's situational awareness, increase flightcrew workload, and consequently reduce the ability to maintain safe flight and landing of the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
As of the effective date of this AD, dispatch is prohibited with any of the equipment specified in paragraphs (f)(1), (f)(2), (f)(3), and (f)(4) of this AD inoperative. When the actions required in paragraph (i) of this AD are accomplished, dispatch with any of the equipment specified in paragraphs (f)(1), (f)(2), (f)(3), and (f)(4) inoperative is allowed in accordance with the provisions and limitations specified in the Master Minimum Equipment List (MMEL).
Note 1: The MMELs currently allow flight/dispatch with any or all of the equipment specified in paragraphs (f)(1), (f)(2), (f)(3), and (f)(4) inoperative under certain conditions. This AD supersedes the MMEL or the approved Minimum Equipment List (MEL) for any operator. Paragraph (i) of this AD provides the required terminating action for the dispatch restrictions.
(1) Dispatch with Secondary flight display system inoperative, as allowed in section 34-2, item 5, of the Dassault F2000EX MMEL or the Dassault F900EX MMEL, as applicable, is prohibited.
(2) Dispatch with Non-stabilized magnetic (standby) compass inoperative, as allowed in section 34-2, item 6, of the Dassault F2000EX MMEL or the Dassault F900EX MMEL, as applicable, is prohibited.
(3) Dispatch with UP-DN manual regulator in pressurized flight inoperative, as allowed in section 21-5, item 2, of the Dassault F2000EX MMEL; or in section 21-5, item 3, of the Dassault F900EX MMEL; as applicable; is prohibited.
(4) Dispatch with Digital electronic engine computers (automatic mode) inoperative, as allowed in section 73-1, item 1, sub-item 1, of the Dassault F900EX MMEL is prohibited.
Within 72 hours after the effective date of this AD, revise the Limitations section of the AFM as required in paragraphs (g)(1) and (g)(2) of this AD, as applicable.
(1) Revise Dassault Falcon F2000EX AFM, DGT88898, by inserting a copy of Dassault Temporary Change (TC) 12, dated January 26, 2005.
(2) Revise Dassault Falcon 900EX AFM, DGT84972, by inserting a copy of Dassault TC 14, dated January 12, 2005.
Within 30 days after the effective date of this AD, do an inspection to check the integrity of the avionics systems communication bus (ASCB) for any faults, in accordance with the Accomplishment Instructions of Dassault Service Bulletin F2000EX-58, dated January 10, 2005; or Dassault Service Bulletin F900EX-256, dated January 10, 2005; as applicable. If any fault is found during the inspection, before further flight, repair the ASCB in accordance with a method approved by either the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA; or the European Aviation Safety Agency (EASA) (or its delegated agent).
(i) Within 90 days after the effective date of this AD, install an avionics software update to the Honeywell Primus Epic system in accordance with the Accomplishment Instructions of Dassault Service Bulletin F2000EX-59, dated February 2, 2005; or Dassault Service Bulletin F900FX-254, dated February 2, 2005; as applicable. Doing this software update ends the requirements of paragraph (h) of this AD, and the dispatch restrictions and AFM revisions required by paragraphs (f) and (g) of this AD may be removed.
Although the service bulletins referenced in this AD specify to submit information to the manufacturer, this AD does not include that requirement.
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.
