AD NUMBER: 2004-15-01
MANUFACTURER: Raytheon
SUBJECT: Airworthiness Directive 2004-15-01
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for certain Raytheon Aircraft Company(Raytheon) Model 390 airplanes. This AD requires you to inspect the hydraulic tube/hose assemblies, the engine fuel feed tube assemblies, and the engine wire harnesses for proper clearance and damage (as applicable). If improper clearance or damage is found on anyassembly, you must replace and/or modify the affected assembly. This AD is the result of reportsof loss of the hydraulic system functions during different operations caused by improperclearance between certain components. This resulted in damage to the tubing in the hydraulicsystem assemblies. Analysis shows a similar condition on the engine fuel feed assemblies. Weare issuing this AD to detect, correct, and prevent such damage or improper clearance in theaffected areas, which could result in failure of one or more of these systems. These failures could lead to loss of hydraulic system operations, engine shutdown, and false readings for fuelpressure, oil pressure, and other oil indications. These conditions could consequently result inreduced or loss of control of the airplane.

FMI: www.avantext.com/DailyADIndex.ASP?AD=20041501