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Public Record · As of May 5, 2026

N306SW

Boeing 737-8 · 2021 View Type →

Status

Registration Valid

Type

Fixed Wing Multi Engine

Engine

CFM INTL LEAP-1B25

Last Cert Issue

02 /  NTSB Records

Events on file with the National Transportation Safety Board

03 /  Airworthiness Directives

Applicable to BOEING 737-8

Federal Aviation Administration airworthiness directives matched to make and model. Each entry links to the Federal Register publication.

  • Mar 26, 2026

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) certain The Boeing Company Model 737-700, -700C, -800, and -900ER series airplanes. This proposed AD was prompted by a leak through the form-in-place (FiP) gasket at the engine fuel shutoff valve access panel found during a leak check. This proposed AD would require a detailed inspection of the le…

    Federal Register →
  • Mar 23, 2026

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes. This proposed AD was prompted by a leak through the form-in- place (FiP) gasket found during a leak check. This proposed AD would require a detailed inspection of the FiP gasket at the engine fuel shutoff valve access panel…

    Federal Register →
  • Feb 24, 2026

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes. This AD was prompted by reports of in-flight events of excessive cabin and flight deck temperatures that could not be controlled by the flightcrew using existing procedures. This AD requires revising the existing airplane flight manu…

    Federal Register →
  • Dec 12, 2025

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is superseding Airworthiness Directive (AD) 2023-09- 04, which applied to certain The Boeing Company Model 737-600, -700, - 700C, -800, -900, and -900ER series airplanes, and certain Model 737-8 and -9 airplanes. AD 2023-09-04 required inspecting all escape slide assemblies to identify affected parts and replacing affected escape slide assemblies wi…

    Federal Register →
  • Nov 25, 2025

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-8, 737-9, and 737-8200 (737 MAX) airplanes. This proposed AD was prompted by reports indicating cracks in the bear strap and stub frame at the forward galley door cutout. This proposed AD would require inspections for existing repairs; an inspection for any…

    Federal Register →
  • Nov 25, 2025

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-8, 737-9, and 737-8200 (737 MAX) airplanes. This proposed AD was prompted by reports of cracks in the bear strap at the forward upper corner of the forward galley door cutout. This proposed AD would require an inspection of the fuselage skin for existing re…

    Federal Register →
  • Apr 11, 2025

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-700, 737-800, 737-900, 737- 900ER, 737-8, and 737-9 series airplanes. This proposed AD was prompted by a report of a passenger being unable to exit the lavatory during flight due to a broken latch that prevented toggling of the lock. This proposed AD would…

    Federal Register →
  • Apr 10, 2025

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to supersede Airworthiness Directive (AD) 2023-09-04, which applies to certain The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes, and certain Model 737-8 and -9 airplanes. AD 2023-09-04 requires inspecting all escape slide assemblies to identify affected parts and replacing affected escape slide assembli…

    Federal Register →
  • Feb 10, 2025

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is superseding Airworthiness Directive (AD) 2020-03- 20, which applied to certain The Boeing Company Model MD-11, MD-11F, and 717-200 airplanes; all Model 737-8 and 737-9 airplanes; all Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes; certain Model 747-400 and 747-400F series airplanes; certain Model 757 and 767 airplanes; and al…

    Federal Register →
  • Dec 31, 2024

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes. This proposed AD was prompted by a report indicating that certain clip-on nuts with primer, in lieu of clip-on nuts with cadmium surface finish only (without primer), were inadvertently used to install the self-bonded saddl…

    Federal Register →
  • Dec 2, 2024

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-8, 737-9, and 737-8200 (737 MAX) airplanes. This AD was prompted by a report of a non-conforming installation of spoiler wire bundles that led to unintended spoiler motion, including one instance of a flight spoiler hardover. Further investigation identified the…

    Federal Register →
  • Oct 22, 2024

    Airworthiness Directives; The Boeing Company Airplanes

    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 pa…

    Federal Register →
  • Jul 10, 2024

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes and Model 737-700, -800, and -900ER series airplanes. This AD was prompted by multiple reports of passenger service unit (PSU) oxygen generators shifting out of position within their associated PSU assemblies because of a retention fa…

    Federal Register →
  • Apr 17, 2024

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-8 and 737-9 airplanes. This AD was prompted by a determination that the loss of a ground through the P6 panel results in the failure of the standby power control unit (SPCU). The loss of the SPCU and ground through the P6 panel could result in the loss of signifi…

    Federal Register →
  • Mar 11, 2024

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes. This proposed AD was prompted by a report of a non- conforming installation of spoiler wire bundles that led to unintended spoiler motion, including one instance of spoiler hardover. Further investigation identified the pot…

    Federal Register →
  • Feb 14, 2024

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-8 and Model 737-9 airplanes. This proposed 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 proposed AD would require the installation of four diodes…

    Federal Register →
  • Feb 12, 2024

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company (Boeing) Model 737-8, 737-8200, and 737-9 airplanes. This AD was prompted by a report of a missing washer and nut and consequent migrated bolt discovered by an operator during scheduled maintenance. This AD requires a one-time inspection of the aft rudder quadrant and appl…

    Federal Register →
  • Dec 12, 2023

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to supersede Airworthiness Directive (AD) 2020-03-20, which applies to certain The Boeing Company Model MD-11, MD-11F, and 717-200 airplanes, all Model 737-8 and 737-9 airplanes, all Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes, certain Model 747-400 and 747-400F series airplanes, certain Model 757 and 767 airplanes,…

    Federal Register →
  • Aug 7, 2023

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-8 and 737-9 airplanes. This proposed AD was prompted by a determination that the loss of ground through the P6 panel results in the failure of the standby power control unit (SPCU). The loss of the SPCU and P6 would result in the loss of significant flight…

    Federal Register →
  • Aug 1, 2023

    Airworthiness Directives; AVOX Systems Inc. (Formerly Scott Aviation) Oxygen Cylinder and Valve Assemblies; and Oxygen Valve Assemblies

    The FAA is superseding Airworthiness Directive (AD) 2022-04- 09, which applied to certain AVOX Systems Inc. (formerly Scott Aviation) oxygen cylinder and valve assemblies; and oxygen valve assemblies; installed on but not limited to various transport airplanes. AD 2022-04-09 required an inspection of the oxygen valve assemblies, and oxygen cylinder and valv…

    Federal Register →
  • Jun 21, 2023

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is superseding Airworthiness Directive (AD) 2022-03- 20, which applied to all The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes. AD 2022-03-20 required revising the limitations and operating procedures sections of the existing airplane flight manual (AFM) to incorporate limitations prohibiting the use of certain minimum equipment list (M…

    Federal Register →
  • May 25, 2023

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes, and certain Model 737-8 and -9 airplanes. This AD was prompted by reports of uncommanded escape slide deployments in the passenger compartment, caused by too much tension in the inflation cable and the mo…

    Federal Register →
  • May 3, 2023

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to supersede Airworthiness Directive (AD) 2022-03-20, which applies to all The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes. AD 2022-03-20 requires revising the limitations and operating procedures sections of the existing airplane flight manual (AFM) to incorporate limitations prohibiting the use of certain minimum equipment l…

    Federal Register →
  • Apr 5, 2023

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes. This AD was prompted by a determination that new airworthiness limitations are necessary to require periodic replacement; or testing, and replacement if necessary; of the oxygen sensor of the nitrogen generation system (NGS). Thi…

    Federal Register →
  • Mar 27, 2023

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-8, -8200, and -9 airplanes. This AD was prompted by a report indicating that certain engine anti-ice (EAI) exhaust duct fasteners were inadequately torqued. This AD requires an inspection or records review to determine the serial number of each engine inlet; and if a…

    Federal Register →
  • Mar 27, 2023

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 737-8 and 737-9 airplanes, and certain Model 737- 600, -700, -700C, -800, -900, and -900ER series airplanes. This AD was prompted by reports of damage to the auxiliary power unit (APU) fuel line shroud located aft of the aft cargo area; investigation revealed that the placement…

    Federal Register →
  • Dec 22, 2022

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is superseding Airworthiness Directive (AD) 2021-14- 20, which applied to all The Boeing Company Model 737 airplanes. AD 2021-14-20 required repetitive functional tests of the cabin altitude pressure switches, and on-condition actions, including replacement, if necessary. AD 2021-14-20 also required reporting test results. This AD was prompted by da…

    Federal Register →
  • Nov 30, 2022

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes, and certain Model 737-8 and -9 airplanes. This proposed AD was prompted by reports of uncommanded escape slide deployments in the passenger compartment, caused by too much tension in the inflation c…

    Federal Register →
  • Nov 28, 2022

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes. This proposed AD was prompted by a determination that a new airworthiness limitation is necessary to require periodic replacement of the oxygen sensor of the nitrogen generation system (NGS). This proposed AD would require…

    Federal Register →
  • Oct 5, 2022

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-8 and 737-9 airplanes, and certain Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. This proposed AD was prompted by reports of damage to the auxiliary power unit (APU) fuel line shroud located in the aft cargo area; investigation reveal…

    Federal Register →
  • Sep 15, 2022

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-8 airplanes. This AD was prompted by a report that, during production, a small number of fasteners in certain locations of the center fuel tank were cap sealed on top of a black stripe of ink with a clear overcoat. This clear overcoat is not an approved surface f…

    Federal Register →
  • Jul 7, 2022

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to supersede Airworthiness Directive (AD) 2021-14-20, which applies to all The Boeing Company Model 737 airplanes. AD 2021-14-20 requires repetitive functional tests of the cabin altitude pressure switches, and on-condition actions, including replacement, if necessary. AD 2021-14-20 also requires reporting test results. Since the FAA issued…

    Federal Register →
  • May 12, 2022

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is superseding Airworthiness Directive (AD) 2017-14- 13, which applied to certain The Boeing Company Model 737-600, -700, - 700C, -800, -900, and -900ER series airplanes. AD 2017-14-13 required a torque check of the screws in the cover assembly of the heel rest for both the captain's and the first officer's rudder pedals, and corrective action if ne…

    Federal Register →
  • Feb 23, 2022

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-8 airplanes. This proposed AD was prompted by a report that, during production, a small number of fasteners in certain locations of the center fuel tank were cap sealed on top of a black stripe of ink with a clear overcoat. This clear overcoat is not an app…

    Federal Register →
  • Jan 31, 2022

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes. This AD was prompted by a determination that radio altimeters cannot be relied upon to perform their intended function if they experience interference from wireless broadband operations in the 3.7-3.98 GHz frequency band (5G C-Band),…

    Federal Register →
  • Aug 9, 2021

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737-8, 737-9, and 737-8200 (737 MAX) airplanes; and certain Model 737-800 and 737-900ER series airplanes. This AD was prompted by the determination that the aft cargo compartment fire suppression capability is reduced if the airplane is dispatched or released with failed…

    Federal Register →
  • Jul 30, 2021

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for all The Boeing Company Model 737 airplanes powered by LEAP-1B engines. This AD was prompted by reports of inadvertent release of the spring energy of the spring door opening system (SDOS) actuator with a certain part number, causing injury and the potential for injury to maintenance personnel. This…

    Federal Register →
  • Jun 24, 2021

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-8 and 737-9 airplanes. This AD was prompted by a report that during refueling of the right main tank, if there is a failure of the automatic shutoff system, the refueling panel does not provide the required indication that the automatic shutoff has failed. This A…

    Federal Register →
  • Jun 23, 2021

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-8 and 737-9 (737 MAX) airplanes. This AD was prompted by the determination that additional Certification Maintenance Requirements (CMRs) are necessary. This AD requires a revision of the existing maintenance or inspection program to incorporate three additional C…

    Federal Register →
  • Apr 30, 2021

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-8 and 737-9 airplanes. This AD was prompted by manufacturing design changes to certain metallic support panel assemblies installed in the flight deck, which resulted in insufficient electrical bonding of the panels and consequent insufficient electrical grounding…

    Federal Register →
  • Apr 21, 2021

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is superseding Airworthiness Directive (AD) 2013-07- 09, which applied to certain The Boeing Company Model 737-700, -700C, - 800, and -900ER series airplanes, Model 747-400F series airplanes, and Model 767-200 and -300 series airplanes. AD 2013-07-09 required a general visual inspection for affected serial numbers of the crew oxygen mask stowage box…

    Federal Register →
  • Apr 2, 2021

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-8 and 737-9 airplanes. This proposed AD was prompted by a report that during refueling of the right main tank, if there is a failure of the automatic shutoff system, the refueling panel does not provide the required indication that the automatic shutoff has…

    Federal Register →
  • Jan 21, 2021

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA proposes to supersede Airworthiness Directive (AD) 2017-14-13, which applies to certain The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. AD 2017-14-13 requires a torque check of the screws in the cover assembly of the heel rest for both the captain's and the first officer's rudder pedals, and corrective action…

    Federal Register →
  • Nov 20, 2020

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is superseding Airworthiness Directive (AD) 2018-23- 51, which applied to all The Boeing Company Model 737-8 and 737-9 (737 MAX) airplanes. AD 2018-23-51 required revising certificate limitations and operating procedures of the Airplane Flight Manual (AFM) to provide the flightcrew with runaway horizontal stabilizer trim procedures to follow under c…

    Federal Register →
  • Nov 5, 2020

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is revising an earlier proposal to supersede Airworthiness Directive (AD) 2013-07-09, which applies to certain The Boeing Company Model 737-700, -700C, -800, and -900ER series airplanes, Model 747-400F series airplanes, and Model 767-200 and -300 series airplanes. This action revises the notice of proposed rulemaking (NPRM) by adding airplanes to th…

    Federal Register →
  • Oct 15, 2020

    Airworthiness Directives; Kidde Aerospace & Defense

    The FAA is adopting a new airworthiness directive (AD) for Kidde Aerospace & Defense cargo fire extinguisher halon bottles installed on various transport category airplanes. This AD was prompted by a report indicating that certain cargo fire extinguisher halon bottles installed in the cargo compartment had low charge pressure. This AD requires an inspection…

    Federal Register →
  • Aug 25, 2020

    Airworthiness Directives; The Boeing Company Airplanes

    The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 747-8 and -8F series airplanes, and Model 787-8, -9, and -10 airplanes. This AD requires removing Kathon FP 1.5 biocide from the fuel tanks and engines, installing a fuel limitation placard, and revising the existing airplane flight manual (AFM) to prohibit operation…

    Federal Register →

04 /  Service Difficulty Reports

FAA SDR filings

The FAA does not currently expose a public API for Service Difficulty Reports. We do not back-fill or paraphrase. Search the FAA SDR portal directly →

05 /  Sources & Methodology

Every fact on this page links to its primary US-government source

We render only what the agency publishes. Found a factual error? Report it → We acknowledge within 5 business days and resolve within 14.