77-21-02 SOCIETE NATIONALE INDUSTRIELLE AEROSPATIALE (Formerly Nord Aviation): Amendment 39-3053 as amended by Amendment 39-3142. Applies to all Nord 262 Series airplanes certificated in all categories.
Compliance is required as indicated, unless already accomplished.
To prevent interruption of fuel flow to the operating engine as a consequence of failure of one engine, accomplish the following:
(a) Except as provided in paragraph (b) of this AD, within the next 300 hours time in service after October 31, 1977, accomplish the following:
(1) For airplanes not equipped with auxiliary tanks in center wing, install a rigid metal partition inside fuel tank No. 1 (LH and RH) in accordance with paragraph II "Embodiment Instructions" of Nord 262 Fregate Service Bulletin No. 28-18 (Mod. 825), dated June 23, 1977, or an FAA-approved equivalent.
(2) For airplanes equipped with auxiliary tanks in center wing, install a rigid metal partition inside fuel tank No. 1 (LH and RH) in accordance with paragraph II "Embodiment Instructions" of Nord 262 Fregate Service Bulletin No. 28-19 (Mod. 826), dated June 23, 1977, or an FAA-approved equivalent.
(3) After accomplishing paragraph (a)(1) or (a)(2) of this AD, adjust the zero point on the fuel quantity indicator in accordance with paragraph II "Accomplishment Instructions" of Nord - 262 Fregate Service Bulletin No. 28-20 (Mod. 828), dated June 23, 1977, or an FAA-approved equivalent.
(b) An airplane may be operated for a period of time not to extend past April 1, 1978, without the airplane being modified in accordance with paragraph (a) of this AD if -
(1) Modification kits required under paragraph (a) of this AD have been ordered but have not been delivered;
(2) An operating limitation placard is installed in clear view of the pilot that reads, "Warning-in the event of one engine failing, immediate action to correct asymmetrical flight must be taken to prevent loss of the operating engine"; and
(3) The period of time for continued operation without being in compliance with paragraph (a) of this AD must be approved by the FAA District Office having jurisdiction over the operator. Requests for approval must substantiate that the modification kits required under paragraph (a) of this AD have been ordered but have not been delivered.
(c) The placard required by paragraph (b) of this AD may be removed upon compliance with paragraph (a) of this AD.
Amendment 39-3053 became effective October 31, 1977.
This amendment 39-3142 is effective March 2, 1978, as to all persons except those persons to whom it was made immediately effective by the telegram dated December 8, 1977, which contained this amendment.