Airworthiness Directive · Amendment 39-22559 · Auto flight
The Boeing Company Airplanes
This AD applies to all The Boeing Company Model 787-8, 787-9, and 787-10 airplanes, certificated in any category.
The FAA is superseding Airworthiness Directive (AD) 2020-24- 04, which applied to all The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. AD 2020-24-04 required revising the existing airplane flight manual (AFM) to incorporate procedures for an approach with a localizer-based navigation aid, monitoring localizer raw data, calling out any significant deviations, and performing an immediate go around under certain conditions. This AD was prompted by the development of a modification to address the previously identified unsafe condition, and the identification of a separate unsafe condition where misleading vertical flight director (FD) guidance can be presented to the flightcrew under certain conditions. This AD continues to require the actions specified in AD 2020-24-04 and requires installing applicable software updates to the flight control module (FCM). Using updated software terminates the retained AFM requirement in this AD. The FAA is issuing this AD to address the unsafe condition on these products.
This paragraph restates the requirements of paragraph (g) of AD 2020-24-04, with new terminating action and revised affected airplanes. For airplanes on which Common Block Point (CBP) 5.1, 27 Flight Control Module (FCM) Operational Program Software (OPS) part number HNP5A-AL01-5041 or later approved software part number is not installed on FCM-L, FCM-C, and FCM-R: Within 14 days after December 18, 2020 (the effective date of AD 2020-24-04), revise the Operating Procedures chapter of the existing AFM and applicable corresponding operational procedures to incorporate the procedures specified in figure 1 to paragraph (g) of this AD. Revising the existing AFM to include the changes specified in paragraph (g) of this AD may be done by inserting a copy of figure 1 to paragraph (g) of this AD into the existing AFM. Installing the software required by paragraph (h) of this AD terminates the requirement for revising the existing AFM in this paragraph.
For airplanes identified in paragraph A, “Effectivity,” of Boeing Alert Requirements Bulletin B787-81205-SB270053-00 RB, Issue 002, dated May 6, 2021: Except as specified by paragraph (j) of this AD, at the applicable times specified in the “Compliance” paragraph of Boeing Alert Requirements Bulletin B787-81205-SB270053-00 RB, Issue 002, dated May 6, 2021, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin B787-81205-SB270053-00 RB, Issue 002, dated May 6, 2021.
Note 1 to paragraph (h): Guidance for accomplishing the actions required by paragraph (h) of this AD can be found in Boeing Alert Service Bulletin B787-81205-SB270053-00, Issue 002, dated May 6, 2021, which is referred to in Boeing Alert Requirements Bulletin B787-81205-SB270053-00 RB, Issue 002, dated May 6, 2021.
For airplanes identified as Group 1, Configuration 1, and as Group 2, Configuration 1, in paragraph A, “Effectivity,” of Boeing Alert Requirements Bulletin B787-81205-SB270053-00 RB, Issue 002, dated May 6, 2021: Prior to or concurrently with accomplishing the actions required by paragraph (h) of this AD, do all applicable actions identified as “RC” (required for compliance) in, and in accordance with, the applicable service information identified in paragraphs (i)(1) and (2) of this AD.
(1) Boeing Alert Service Bulletin B787-81205-SB270044-00, Issue 003, dated July 7, 2020.
(2) Boeing Service Bulletin B787-81205-SB270046-00, Issue 002, dated October 24, 2019.
(1) Where the Compliance Time columns of the tables in the “Compliance” paragraph of Boeing Alert Requirements Bulletin B787-81205-SB270053-00 RB, Issue 002, dated May 6, 2021, use the phrase “the Issue 001 date of the Requirements Bulletin B787-81205-SB270053-00 RB,” this AD requires using “the effective date of this AD.”
(2) For airplanes on which CBP 5.1, 27 FCM OPS part number HNP5A-AL01-5041 or later-approved software part number was installed on FCM-L, FCM-C, and FCM-R in production, the actions specified in paragraph (h) of this AD are not required.
Installation of the software update specified in the Accomplishment Instructions of Boeing Alert Requirements Bulletin B787-81205-SB270053-00 RB, Issue 002, dated May 6, 2021, or installation of CBP 5.1, 27 FCM OPS part number HNP5A-AL01-5041 or later-approved software part number on FCM-L, FCM-C, and FCM-R in production, terminates the AFM revision required by paragraph (g) of this AD, and the AFM revision may be removed, provided that this software update has been installed on all affected airplanes in an operator's fleet.
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.
