Airworthiness Directive · Amendment 39-21504 · Nacelles/pylons
The Boeing Company Airplanes
This AD applies to all The Boeing Company airplanes specified in paragraphs (c)(1) through (5) of this AD, certificated in any category.
(1) Model DC-10-10 and DC-10-10F airplanes.
(2) Model DC-10-15 airplanes.
(3) Model DC-10-30 and DC-10-30F (KC-10A and KDC-10) airplanes.
(4) Model DC-10-40 and DC-10-40F airplanes.
(5) Model MD-10-10F and MD-10-30F airplanes.
The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model DC-10-10, DC-10-10F, DC-10-15, DC-10-30, DC- 10-30F (KC-10A and KDC-10), DC-10-40 and DC-10-40F airplanes; and Model MD-10-10F and MD-10-30F airplanes. This AD was prompted by a report that an operator found a crack in the upper flange of the pylon aft bulkhead bracket. This AD requires a general visual inspection of the left and right wing pylon at the aft bulkhead bracket for any lockbolt and collar; repetitive surface and open hole eddy current high frequency (ETHF) inspections of the left and right wing pylon at the aft bulkhead bracket for any cracking; and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.
Except as specified by paragraph (h) of this AD: At the applicable times specified in the “Compliance” paragraph of Boeing Alert Requirements Bulletin DC10-54A111 RB, dated June 26, 2020, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin DC10-54A111 RB, dated June 26, 2020.
Note 1 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin DC10-54A111, dated June 26, 2020, which is referred to in Boeing Alert Requirements Bulletin DC10-54A111 RB, dated June 26, 2020.
(1) Where Boeing Alert Requirements Bulletin DC10-54A111 RB, dated June 26, 2020, uses the phrase “the original issue date of Requirements Bulletin DC10-54A111 RB,” this AD requires using “the effective date of this AD.”
(2) Where Boeing Alert Requirements Bulletin DC10-54A111 RB, dated June 26, 2020, specifies contacting Boeing for repair, modification, or replacement instructions: This AD requires doing the repair, modification, or replacement using a method approved in accordance with the procedures specified in paragraph (i) of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
