AD 2012-18-05: Fuel

This AD applies to The Boeing Company airplanes, certificated in any category, as identified in paragraphs (c)(1) through (c)(8) of this AD, and equipped with center wing fuel tanks and Boeing original equipment manufacturer-installed auxiliary fuel tanks. For airplanes from which the auxiliary fuel tanks have been removed, the actions specified in this AD are not required. (1) Model DC-9-11, DC-9-12, DC-9-13, DC-9-14, DC-9-15, and DC-9-15F airplanes. (2) Model DC-9-21 airplanes. (3) Model DC-9-31, DC-9-32, DC-9-32 (VC-9C), DC-9-32F, DC-9-33F, DC-9-34, DC-9-34F, and DC-9-32F (C-9A, C-9B) airplanes. (4) Model DC-9-41 airplanes. (5) Model DC-9-51 airplanes. (6) Model DC-9-81 (MD-81), DC-9-82 (MD-82), DC-9-83 (MD-83), and DC-9-87 (MD-87) airplanes. (7) Model MD-88 airplanes. (8) Model MD-90-30 airplanes.