Airworthiness Directive · Amendment 39-23246 · Water/waste
The Boeing Company Airplanes
This AD applies to The Boeing Company Model 787-8, 787-9, and 787-10 airplanes, certificated in any category, having line numbers 6 through 687 inclusive, 689 through 954 inclusive, 956 through 970 inclusive, 972 through 982 inclusive, 984 through 989 inclusive, 991 through 996 inclusive, 999, 1001 through 1008 inclusive, 1012, 1013, 1016 through 1019 inclusive, 1021, 1022, 1024 through 1026 inclusive, 1029 through 1032 inclusive, 1038, 1040, 1041, 1044, 1045, 1047, 1048, 1054 through 1062 inclusive, 1071, 1072, 1074, 1075, 1082, 1085, 1087, 1091, 1094, 1095, 1098, 1099, 1103, 1109, 1112 through 1114 inclusive, 1117, 1118, 1121, 1122, 1125, 1126, 1128 through 1134 inclusive, 1136 through 1145 inclusive, 1147, 1148, 1151, 1161, and 1167.
The FAA is superseding Airworthiness Directive (AD) 2024-01- 01, which applied to certain The Boeing Company Model 787-8, 787-9, and 787-10 airplanes. AD 2024-01-01 required repetitive general visual inspections (GVIs) of the area under all lavatory washbasins for evidence of intermittent and active leaks at the faucet control module (FCM) and applicable on-condition actions. This AD was prompted by development of an FCM with an improved design that is not susceptible to leaking. This AD continues to require the actions of AD 2024-01-01 and requires replacement of the FCM as terminating action for the repetitive GVIs, a leak test, installation of moisture management devices, and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.
This paragraph restates the requirements of paragraph (g) of AD 2024-01-01, with revised service information. Except as specified by paragraph (h) of this AD: At the applicable times specified in the “Compliance” paragraph of Boeing Alert Requirements Bulletin B787-81205-SB250290-00 RB, Issue 001, dated November 1, 2022, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin B787-81205-SB250290-00 RB, Issue 001, dated November 1, 2022, or Issue 002, dated January 31, 2025. As of the effective date of this AD, only use Boeing Alert Requirements Bulletin B787-81205-SB250290-00 RB, Issue 002, dated January 31, 2025, for the actions required by this paragraph.
Note 1 to paragraph (g): Guidance for accomplishing the actions required by paragraph (g) of this AD can be found in Boeing Alert Service Bulletin B787-81205-SB250290-00, Issue 002, dated January 31, 2025, which is referred to in Boeing Alert Requirements Bulletin B787-81205-SB250290-00 RB, Issue 002, dated January 31, 2025.
This paragraph restates the exception in paragraph (h) of AD 2024-01-01, with no change. Where the Compliance Time column of the table in the “Compliance” paragraph of Boeing Alert Requirements Bulletin B787-81205-SB250290-00 RB, Issue 001, dated November 1, 2022, uses the phrase “the Issue 001 date of the Requirements Bulletin B787-81205-SB250290-00 RB,” this AD requires using March 7, 2024 (the effective date of AD 2024-01-01).
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-SB250291-00 RB, Issue 002, dated November 22, 2024, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin B787-81205-SB250291-00 RB, Issue 002, dated November 22, 2024.
Note 2 to paragraph (i): Guidance for accomplishing the actions required by paragraph (i) of this AD can be found in Boeing Alert Service Bulletin B787-81205-SB250291-00, Issue 002, dated November 22, 2024, which is referred to in Boeing Alert Requirements Bulletin B787-81205-SB250291-00 RB, Issue 002, dated November 22, 2024.
(1) Where the Boeing Recommended Compliance Time columns of the tables in the “Compliance” paragraph of Boeing Alert Requirements Bulletin B787-81205-SB250291-00 RB, Issue 002, dated November 22, 2024, refer to the Issue 001 date of Requirements Bulletin B787-81205-SB250291-00 RB, this AD requires using the effective date of this AD.
(2) For Group 4, Configuration 3 airplanes identified in Boeing Alert Requirements Bulletin B787-81205-SB250291-00 RB, Issue 002, dated November 22, 2024: The actions in Table 1 and Table 2 of the Accomplishment Instructions in Boeing Alert Requirements Bulletin B787-81205-SB250291-00 RB, Issue 002, dated November 22, 2024, are not required by this AD.
(3) Where the Description column for Groups 4 and 5, Configuration 1, in table 1 of the “Effectivity” paragraph of Boeing Alert Requirements Bulletin B787-81205-SB250291-00 RB, Issue 002, dated November 22, 2024, refers to “Airplanes that have incorporated the P200 panel moisture management device changes in service bulletin B787-81205-SB250249-00”, this AD requires replacing that text with “Airplanes that have incorporated the P200 panel moisture management device changes in service bulletin B787-81205-SB250249-00 or had the intent of service bulletin B787-81205-SB250249-00 incorporated during production”.
(4) Where “Task 7 Figure 1” of Boeing Alert Requirements Bulletin B787-81205-SB250291-00 RB, Issue 002, dated November 22, 2024, refers to stations (STAs) “1218”, “1232”, and “1256”, this AD requires replacing that text with “1233”, “1257”, and “1281”, respectively.
(5) Where “Task 7 Figure 4,” “Task 7 Figure 5”, and “Task 7 Figure 6” of Boeing Alert Requirements Bulletin B787-81205-SB250291-00 RB, Issue 002, dated November 22, 2024, refer to STA “1218”, this AD requires replacing that text with “1233”.
(6) Where of the Accomplishment Instructions of Boeing Alert Requirements Bulletin B787-81205-SB250291-00 RB, Issue 002, dated November 22, 2024, specify to install a kept part, this AD allows installation of a new or serviceable part with the same part number as an alternative to the kept part.
(7) Where the Jamco service information identified in Boeing Alert Requirements Bulletin B787-81205-SB250291-00 RB, Issue 002, dated November 22, 2024, specifies procedures for replacing FCM part number (P/N) AFUT000200A0002 with FCM P/N AFUT000200A0004, those procedures are acceptable for compliance for replacing FCM P/N AFUT000200A0001 with FCM P/N AFUT000200A0004.
Replacing FCM P/N AFUT000200A0001 or P/N AFUT000200A0002 with FCM P/N AFUT000200A0004 terminates the repetitive inspections required by paragraph (g) 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.
