Falcon Summer 1997

• Duncan APU Exempt from APU Provisions of AD-76-19-02
• Falcon 50 RVSM Service Bulletins
• Planning is Essential When Scheduling Your Falcon
• Duncan Aviation Parts/AVPAC Expands Falcon Rotable Inventory

Duncan APU Exempt from APU Provisions of AD-76-19-02

AD 76-19-02 addresses the problem of fuel entering the aircraft air conditioning system as a result of malfunctions in the fuel tank pressurization system on Falcon 20s.

The problem occurs when the fuel tanks are pressurized and the pressure source deactivated (i.e. engines shut down). Leakage from the fuel tank pressurization check valves allows fuel to flow into the aircraft bleed system plumbing. This fuel is carried into the cabin by the air conditioning system. This can also occur with APU’s that pressurize fuel tanks during APU operation. Dassault has issued two service bulletins to correct this problem.

SB 558 isolates the main engine bleed plumbing from the fuel tank pressurization plumbing to eliminate the possibility of fuel leaking into the pressurization ducting.

SB 567 addresses the problem as it relates to APU installations. It requires removal of fuel tank pressurization by the APU to eliminate the possibility of fuel leakage.

Duncan’s APU (STC SA2459CE) includes a boost pump and doesn’t require the fuel tanks to be pressurized. Falcon SB 567 and the APU provisions of AD 76-19-02 are not applicable with the Duncan APU installation.

For more information, please contact Jeff Manion at 1.800.228.4277.

Falcon 50 RVSM Service Bulletins

The Falcon 50 RVSM Service Bulletin package is now available for purchase through the Dassault Falcon Jet Spares department for $9,000. The package includes Service Bulletins 246, 262, 61 & 62. Here are the applications for each.

SB 246

This is the basic RVSM Bulletin. It outlines the static port and fuselage skin inspections and provides on-going airworthiness requirements.

SB 262

This SB addresses the Air Data Computer modifications and airframe wiring changes required for aircraft that were completed in the Eastern Hemisphere.

SB 61

SB 61 applies to aircraft with Honeywell ADCs and autopilot that were completed at Falcon Jet, Little Rock. It provides references to SB 246 and SB 262 for ADC mods and static port inspections.

SB 62

SB 62 applies to aircraft with Collins equipment completed at Falcon Jet, Little Rock. As with SB 61, it references SB 246 & SB 262.

NOTE: SB 61 & 62 require conformity to STCs from Falcon Jet or other STC holders and will require additional costs to the customer.

Planning is Essential When Scheduling Your Falcon

Please take advantage of our project planning expertise by getting us involved in your maintenance scheduling as soon as possible. We will provide you with detailed quotations, thoughtful flow charts and information that ensures all factors are considered in your next planned event. Pre-arrival planning can save you from extended downtime, avoidable surprises and puts you in control of your options and scheduling flexibility. If you need to schedule your Falcon or want to discuss our repair capabilities, please contact Jeff Manion at 1.800.228.4277.

Duncan Aviation Parts/AVPAC Expands Falcon Rotable Inventory

High utilization/failure rate Falcon rotables are on the shelf for straight exchange or for time & material exchange sales. Time & material exchanges require evaluation of your unit and then exchanging our unit for yours at your unit’s cost of overhaul. Full warranty and documentation are provided.

For more information, please contact Bob Randall of Duncan Parts Sales/AVPAC at 800.228.1836 or 402.475.4125 (Fax: 402.479.1519). Or contact AVPAC through the Internet at: http://www.avpac.com.

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