Summary
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to all Raytheon Model BAe.125 Series 1000A and 1000B, and Model Hawker 1000 series airplanes. This proposal would require inspection of P1 pitot pipes for chafing or damage, and various follow-on actions. This proposal is prompted by reports of P1 pitot pipes chafing against adjacent flight control cables. The actions specified by the proposed AD are intended to prevent a hole in the P1 pitot pipes, which would lead to erroneous input to the instrumentation and warning systems associated with the pilot's instruments.