<searchTitle>Airworthiness Directives; The Boeing Company Airplanes; Federal Register Vol. 89, Issue </searchTitle>
<granuleClass>RULE</granuleClass>
<accessId>2024-24369</accessId>
<agency order="1">DEPARTMENT OF TRANSPORTATION</agency>
<agency order="2">Federal Aviation Administration</agency>
<effectiveDate>2024-11-26</effectiveDate>
<departmentDoc>Docket No. FAA-2024-0229</departmentDoc>
<departmentDoc>Project Identifier AD-2023-00485-T</departmentDoc>
<departmentDoc>Amendment 39-22848</departmentDoc>
<departmentDoc>AD 2024-19-06</departmentDoc>
<rin number="2120-AA64"/>
<billingCode>4910-13-P</billingCode>
<frDocNumber>2024-24369</frDocNumber>
<action>Final rule.</action>
<summary>The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-8 and Model 737-9 airplanes. This AD was prompted by a Boeing review of the standby power system control unit (SPCU) design where a single point of failure exists internal to the SPCU. This AD requires installing four diodes and changing wire bundles in the P5 panel, as well as performing installation and power tests and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.</summary>
<dates>This AD is effective November 26, 2024 .</dates>
<contact>Raja Vengadasalam, Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone 206-231-3537; email Raja.Vengadasalam@faa.gov.</contact>
<cfr title="14">
<part number="39"/>
<subject>Air Transportation</subject>
<subject>Aircraft</subject>
<subject>Aviation Safety</subject>
<subject>Incorporation by Reference</subject>
<subject>Safety</subject>
...</cfr>
<tocSubject1>Airworthiness Directives</tocSubject1>
<tocDoc>The Boeing Company Airplanes, </tocDoc>
<emailRef>AMOC@faa.gov</emailRef>
<emailRef>fr.inspection@nara.gov</emailRef>
<emailRef>Raja.Vengadasalam@faa.gov</emailRef>
<urlRef>myboeingfleet.com</urlRef>
<urlRef>regulations.gov</urlRef>
<urlRef>www.archives.gov/federal-register/cfr/ibr-locations.html</urlRef>