Airworthiness Directive · Amendment 39-19626 · Hydraulic power
The Boeing Company Airplanes
This AD applies to The Boeing Company airplanes, certificated in any category, as identified in paragraphs (c)(1) and (c)(2) of this AD.
(1) Model 787-8 airplanes identified in Boeing Alert Service Bulletin B787-81205-SB290032-00, Issue 002, dated February 1, 2019.
(2) Model 787-9 airplanes identified in Boeing Alert Service Bulletin B787-81205-SB290033-00, Issue 001, dated November 17, 2017.
We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 787-8 and 787-9 airplanes. This AD was prompted by a determination that certain areas in the tire/wheel threat zones could be susceptible to damage, which could result in loss of braking on one main landing gear (MLG) truck, loss of nose wheel steering, and loss of directional control on the ground when below rudder effectiveness speed. This AD requires installing hydraulic tubing, a pressure-operated check valve, and new flight control software. We are issuing this AD to address the unsafe condition on these products.
(1) At the applicable time specified in paragraph 5., “Compliance,” of Boeing Alert Service Bulletin B787-81205-SB290032-00, Issue 002, dated February 1, 2019 (for Model 787-8 airplanes); or Boeing Alert Service Bulletin B787-81205-SB290033-00, Issue 001, dated November 17, 2017 (for Model 787-9 airplanes); except as specified in paragraph (h)(1) of this AD: Do all applicable actions identified as “RC” (required for compliance) in, and in accordance with, the Accomplishment Instructions of Boeing Alert Service Bulletin B787-81205-SB290032-00, Issue 002, dated February 1, 2019; or Boeing Alert Service Bulletin B787-81205-SB290033-00, Issue 001, dated November 17, 2017, as applicable; except as specified in paragraphs (h)(2) through (h)(8) of this AD.
(2) For Model 787-9 airplanes: Prior to or concurrently with accomplishing the actions required by paragraph (g)(1) of this AD, do all applicable actions (including software installation) identified as RC in and, in accordance with the Accomplishment Instructions of Boeing Alert Service Bulletin B787-81205-SB270039-00, Issue 002, dated March 8, 2018; except where Boeing Alert Service Bulletin B787-81205-SB270039-00, Issue 002, dated March 8, 2018, specifies installing required software, this AD requires installing that software or later-approved software versions. Later-approved software versions are only those Boeing software versions that are approved as a replacement for the applicable software, and are approved as part of the type design by the FAA or the Boeing Commercial Airplanes Organization Designation Authorization (ODA) after issuance of Boeing Alert Service Bulletin B787-81205-SB270039-00, Issue 002, dated March 8, 2018.
(1) For purposes of determining compliance with the requirements of this AD: Where the service information identified in paragraph (g)(1) of this AD uses the phrase “the Issue 001 date on [/of] this service bulletin” this AD requires using “the effective date of this AD.”
(2) Where step 8 in Table 1 of Task 12 of the Accomplishment Instructions of Boeing Alert Service Bulletin B787-81205-SB290033-00, Issue 001, dated November 17, 2017, identifies the part as “652Z1591-95,” use part “652Z1591-764.”
(3) Where step 10 in Table 1 of Task 12 of the Accomplishment Instructions of Boeing Alert Service Bulletin B787-81205-SB290033-00, Issue 001, dated November 17, 2017, identifies the part as “652Z1591-94,” use part “652Z1591-95.”
(4) Where step 11 in Table 1 of Task 12 of the Accomplishment Instructions of Boeing Alert Service Bulletin B787-81205-SB290033-00, Issue 001, dated November 17, 2017, identifies the part as “652Z1591-764,” use part “652Z1591-94.”
(5) Where step 12 in Table 1 of Task 12 of the Accomplishment Instructions of Boeing Alert Service Bulletin B787-81205-SB290033-00, Issue 001, dated November 17, 2017, identifies the part as “658Z1593-48,” use part “BACC10MU06100000EP1.”
(6) Where step 12 in Table 1 of Task 12 of the Accomplishment Instructions of Boeing Alert Service Bulletin B787-81205-SB290033-00, Issue 001, dated November 17, 2017, identifies the part as “BACS47H3370G200K,” use part “BACS47H2370G200K.”
(7) Where step 12 in Table 1 of Task 13 of the Accomplishment Instructions of Boeing Alert Service Bulletin B787-81205-SB290033-00, Issue 001, dated November 17, 2017, identifies the part as “658Z1593-48,” use part “BACC10MU06100000EP1.”
(8) Where step 12 in Table 1 of Task 13 of the Accomplishment Instructions of Boeing Alert Service Bulletin B787-81205-SB290033-00, Issue 001, dated November 17, 2017, identifies the part as “BACS47H3370G200K,” use part “BACS47H2370G200K.”
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
