Summary
This document proposes to supersede Airworthiness Directive (AD) 2000-09-13, which currently requires you to inspect the fuel quantity indication system for damage to the insulation of the wiring within the fuel tanks on British Aerospace Jetstream Model 3201 airplanes and requires you to repair or replace damaged wiring. This proposed AD would retain the actions of AD 2000-09-13 and require you to replace the fuel quantity indication system wiring harness with improved design parts, inspect the fuel boost pump area for damage, and replace any damaged component. This proposed AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for the United Kingdom. The actions specified by this proposed AD are intended to detect, correct, and prevent damage to the insulation of the wiring within the fuel tanks of the fuel quantity indication system. If not detected, corrected, and prevented, such damaged wiring could result in damage to the fuel boost pump and a malfunction in the cockpit indicators and/or electrical sparking inside the fuel tank with consequent fire or explosion.