80-09-02 BRITISH AEROSPACE/SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE: Amendment 39-3755. Applies to all Concorde Type I airplanes, certificated in any category.
To prevent unwanted deviation from the flight path, accomplish the following:
(a) Prior to the next flight after the effective date of this AD, unless already accomplished, remove electrical pitch trim computers 1C151 or 2C151 and install in their place modified electrical pitch trim computers, P/N 49-004.071C51 or P/N 49-004.072C151, as appropriate, in accordance with Concorde Campaign Wire 22CW019, issue 2, dated March 27, 1979, or an equivalent approved by the Chief, Aircraft Certification Staff, Federal Aviation Administration, Europe, Africa, and Middle East Region, c/o American Embassy, Brussels, Belgium.
NOTE: Concorde service bulletin 22A019 (Mod. 1669) also concerns the installation of the modified electrical pitch trim computers.
This supersedes telegraphic airworthiness directive datedApril 6, 1979.
This amendment becomes effective April 14, 1980.