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Duncan Intelligence Articles

  • CF34 5 & 6 Turbine Disk Airworthiness Directive Update

    December 31, 2009, is the deadline to comply with AD 2006-04-12. Although General Electric is working diligently trying to contact operators with information on completing this AD prior to the deadline, they estimate there will be about 20 aircraft that will not be in compliance.
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  • Learjet Gust Locks Prevent Unnecessary Damage

    Gust locks lock the control column in place, preventing random movement and possible damage of the surface from wind while an aircraft is parked. It only takes a small investment to prevent damage that could cost tens of thousands of dollars and hours to repair.
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  • NATA Clarification of Regulatory change to FAR Part 43

    The National Air Transport Association (NATA) clarified a 1996 regulatory change to FAR Part 43, Appendix A regarding the updating of navigation databases in GPSs and Flight Management Systems allowing pilots operating under Part 91 to perform database updates…
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  • Falcon 900 Baggage Door Corrosion

    The ramping of environmental water towards an exit point has always been a challenge. Careful inspection of susceptible areas will ensure unwanted corrosion won’t set in…
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  • TFE731 Winter Weather and Fuel Leaks

    Cold winter temperatures are on the way and with them possible problematic fuel control P3 drain leaks. Fuel control changes account for a large percentage of flight delays or cancellations on TFE731-powered aircraft.
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  • Hawker NLG Strut Leak Concerns

    HawkerBeechcraft Communiqué HK-0012 displays concerns for the Piston Seal, PN 25UN523, in the NLG Strut. This seal may last for many flights, even in Arctic temperatures, but can start leaking without warning. Small leaks can often be severe enough to deplete the NLG Strut of all fluid.
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  • When Exactly is the RVSM Manual Required?

    Carrying the RVSM manual on board is only a regulatory requirement when the Operations Specifications, Letter Of Authorization or the FAA-approved RVSM maintenance manual states that you must have it on board. Having the RVSM manual on board, however, can be quite valuable in certain situations and is always a good idea.
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  • P&W Service Bulletin 30382

    The P&W Service Bulletin 30382 introduces a seal between the turbine exhaust case and the turbine exhaust mixer assembly to keep hot exhaust gases from sensitive areas.
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  • Falcon FQMC Fault Codes

    Falcon FQMC Fault Codes relating to “fuel quantity gauging signal outside of tolerance” on your Falcon 2000 usually mean water has affected the probes in the fuel bay.
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