Airworthiness Directive 2009-08-01

one-time
Official AD 2009-08-01 · FR doc E9-7790 · 2009-04-09 · appliance

Airworthiness Directives; Honeywell Flight Management Systems (FMSs) Equipped With Honeywell NZ-2000 Navigation Computers and Honeywell IC-800 or IC-800E Integrated Avionics Computers; as Installed on Various Transport Category Airplanes

What this AD requires

The FAA is superseding an existing airworthiness directive (AD), which applies to all Honeywell FMSs served by Honeywell NZ-2000 navigation computers and IC-800 integrated avionics computers. That AD currently requires identifying affected computers by part number and software modification level and revising the Limitations section of applicable airplane flight manuals to provide procedures for retaining optimum position determination and intended navigation. This new AD requires upgrading new software, which terminates the existing requirements. This AD results from reports of in-flight unannunciated shifts of computed position in airplanes with the subject FMS computers. We are issuing this AD to prevent a shift in the FMS computed position, which could result in uncommanded deviations from the intended flight path of the airplane, and, if those deviations are undetected by the flight crew, compromised terrain/traffic avoidance.

Which aircraft AD 2009-08-01 applies to

MakesHoneywell
ModelsNZ-2000, IC-800, IC-800E

Applies to all Honeywell NZ-2000 navigation computers and Honeywell IC-800 or IC-800E integrated avionics computers as installed on transport category airplanes, certificated in any category, including but not limited to Bombardier CL-600-2B16 (CL-601-3A, CL-601-3R, CL-604); Dassault Mystere-Falcon 900; Gulfstream G-1159A, GV, and G-IV series; Lockheed 382G series; and Hawker Beechcraft BAe.125 Series 800A (including C-29A and U-125), Hawker 800XP and 1000 airplanes.

Whether AD 2009-08-01 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.

How AD compliance is recorded

A valid compliance record (14 CFR 43.9) states:

Method of complianceThe specific action taken (inspected, replaced, modified) and to what revision.
DateWhen the work was done.
Aircraft timeTotal time in service / tach at compliance — how recurring next-due is computed.
Signature & certificateThe A&P/IA who returned it to service, with certificate number.
Is AD 2009-08-01 complied with on your aircraft?

Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.

Look up a tail number →Read the full directive (Federal Register)

Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.