Airworthiness Directive · Amendment 39-14611 · Raytheon Model Hawker 800XP Airplanes
Raytheon Model Hawker 800XP Airplanes
This AD applies to Raytheon Model Hawker 800XP airplanes, certificated in any category; serial numbers 258541, 258556, 258567 through 258609 inclusive, 258611 through 258628 inclusive, 258630 through 258684 inclusive, and 258686 through 258728 inclusive.
The FAA is adopting a new airworthiness directive (AD) for certain Raytheon Model Hawker 800XP airplanes. This AD requires inspecting certain bus bars in the DA-A panel to ensure that the bus bars match the panel configuration and clearance is adequate between the bus bars and adjacent components, and performing corrective action if necessary. This AD results from two reports of inadequate clearance between the bus bars in the DA-A panel. We are issuing this AD to prevent insufficient electrical isolation for the electrical bus configuration and inability of the flightcrew to isolate the bus bars in an emergency situation involving a dual generator failure, which could result in extra loads on the main ship batteries and consequent loss of power to the main essential bus.
You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.
Within 30 days after the effective date of this AD: Do a detailed inspection of the four bus bars in the DA-A panel to ensure that the bus bars match the panel configuration and clearance is adequate between the bus bars and adjacent components, by doing all the actions in accordance with the Accomplishment Instructions of Raytheon Service Bulletin SB 24-3745, Revision 1, dated September 2005. Accomplish any applicable corrective action before further flight in accordance with the service bulletin.
Note 1: For the purposes of this AD, a detailed inspection is: “An intensive examination of a specific item, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at an intensity deemed appropriate. Inspection aids such as mirror, magnifying lenses, etc., may be necessary. Surface cleaning and elaborate procedures may be required.”
Note 2: A note in the Accomplishment Instructions of the Raytheon service bulletin instructs operators to contact Raytheon if any difficulty is encountered in accomplishing the service bulletin. However, any deviation from the instructions provided in the service bulletin must be approved as an alternative method of compliance (AMOC) under paragraph (i)(1) of this AD.
Inspections accomplished before the effective date of this AD in accordance with Raytheon Service Bulletin SB 24-3745, dated September 2005, are considered acceptable for compliance with the inspections specified in paragraph (f) of this AD.
Although the Accomplishment Instructions of Raytheon Service Bulletin SB 24-3745, Revision 1, dated September 2005, specify submitting certain 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.
Aircraft
