Airworthiness Directive · Amendment 39-22199 · Wings
The Boeing Company Airplanes
(1) This AD applies to all The Boeing Company Model 757-200, -200PF, -200CB, and -300 series airplanes, certificated in any category.
(2) Installation of Supplemental Type Certificate (STC) ST01518SE does not affect the ability to accomplish the actions required by this AD. Therefore, for airplanes on which STC ST01518SE is installed, a “change in product” alternative method of compliance (AMOC) approval request is not necessary to comply with the requirements of 14 CFR 39.17.
The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 757 airplanes. This AD was prompted by a report of cracks found in the fastener holes at a certain location in the center wing box rear spar, lower skin. This AD requires repetitive inspections for cracking of certain areas of the center wing box rear spar, lower skin and lower chord; and repair. 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 757-57A0075 RB, dated August 25, 2021, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 757-57A0075 RB, dated August 25, 2021.
Note 1 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 757-57A0075, dated August 25, 2021, which is referred to in Boeing Alert Requirements Bulletin 757-57A0075 RB, dated August 25, 2021.
(1) Where the Compliance Time columns of the tables in the “Compliance” paragraph of Boeing Alert Requirements Bulletin 757-57A0075 RB, dated August 25, 2021, use the phrase “the original issue date of Requirements Bulletin 757-57A0075 RB,” this AD requires using “the effective date of this AD.”
(2) Where Boeing Alert Requirements Bulletin 757-57A0075 RB, dated August 25, 2021, specifies contacting Boeing for repair instructions: This AD requires doing the repair before further flight using a method approved in accordance with the procedures specified in paragraph (i) of this AD.
(3) Where Step 3 in Sheet 3 of Figures 2 and 4, and Step 4 in Sheet 3 of Figure 3 of Boeing Alert Requirements Bulletin 757-57A0075 RB, dated August 25, 2021, specifies applying both BMS 5-45 and BMS 5-168 sealants, this AD requires application of either BMS 5-45 or BMS 5-168 sealant.
(4) Where note (b) in Sheet 3 of Figure 1 of Boeing Alert Requirements Bulletin 757-57A0075 RB, dated August 25, 2021, specifies “as an accepted procedure,” this AD requires omitting that phrase.
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
