Airworthiness Directive · Amendment 39-12893 · Certain Airplanes Originally Manufactured by Lockheed
Certain Airplanes Originally Manufactured by Lockheed
All of the following airplanes, certificated in any category: Aero Union Corporation Model SP-2H (P2V-7) airplanes, Type Certificate Data Sheet (TCDS) No. A24NM, Revision 0; Central Air Service, Inc., Model SP-2H (P2V-7) airplanes, TCDS No. A40CE, Revision 0; Evergreen Air Center Model SP-2H (identified on TCDS as "2P-2H (P2V-7)") airplanes, TCDS No. A1RM, Revision 2; Hawkins and Powers Aviation, Inc., Model SP-2H (identified on TCDS as "HP-P2V-7") airplanes, TCDS No. A34NM, Revision 0; Minden Air Corporation Model SP-2H (P2V-7) airplanes, TCDS No. A36NM, Revision 2; Neptune Aviation Service, Inc., Model SP-2H (P2V-7) airplanes, TCDS No. A15SW, Revision 1; and U.S. Department of Agriculture Model SP-2E (P2V-5F) airplanes, TCDS No. A17EA, Revision 2.
This amendment adopts a new airworthiness directive (AD) that is applicable to certain airplanes originally manufactured by Lockheed for the military as the P2V. This action requires, among other actions, repetitive dye penetrant and detailed inspections to detect cracks in certain areas located on the left- and right-side lower wing surface between the fuselage and inboard engine nacelle; repetitive detailed inspections of adjacent areas; and repair, if necessary. This action also requires operators to submit a report of the initial inspection findings. This action is necessary to detect and correct stress-related cracking on the left- and right-side lower wing surface between the fuselage and inboard engine nacelle, which could result in structural failure of the wings and consequent loss of control of the airplane. This action is intended to address the identified unsafe condition.
