Federal Register - February 23, 2021
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Source: Federal Register
BILLING CODE 491013C
l Alternative Operational Check For Model 7878, 9, and 10 airplanes equipped with an engine fire control panel having part number 412600001 or an engine fire shutoff switch having part number 417000101 or 417000102: As an alternative to performing the actions required by paragraph k of this AD, within 30 days after
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accomplishing the last 28AWLFIRE or 26
AWLFIRE task or accomplishing the last operational check of the engine fire handle in accordance with Boeing Requirements Bulletin B78781205SB26000700 RB, Issue 001, dated February 22, 2019; perform an operational check of the engine fire handle in accordance with Boeing Requirements Bulletin B78781205SB26000700 RB, Issue
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001, dated February 22, 2019. Repeat the operational check thereafter at intervals not to exceed 30 days. Accomplishing the initial check specified in this paragraph terminates the actions required by paragraph g of this AD.
Note 2 to paragraph l: Guidance for accomplishing the actions specified in paragraph l of this AD can be found in
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Federal Register / Vol. 86, No. 34 / Tuesday, February 23, 2021 / Rules and Regulations