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02 /  NTSB Records

Events on file with the National Transportation Safety Board

03 /  Airworthiness Directives

Applicable to CESSNA 525B

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

  • Mar 4, 2026

    Airworthiness Directives; Textron Aviation, Inc. (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes

    The FAA is correcting an airworthiness directive (AD) that was published in the Federal Register. That AD applies to all Textron Aviation, Inc., Model 525B airplanes. As published, there was an error in Table 1 to paragraph (g) of the AD. This document corrects that error. In all other respects, the original document remains the same.

    Federal Register →
  • Feb 6, 2026

    Airworthiness Directives; Textron Aviation, Inc. (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes

    The FAA is adopting a new airworthiness directive (AD) for all Textron Aviation, Inc., Model 525B airplanes. This AD was prompted by the manufacturer's revision of the aircraft maintenance manual (AMM) to introduce more restrictive inspection intervals. This AD requires revising the Airworthiness Limitations Section (ALS) of the existing AMM or instructions…

    Federal Register →
  • Nov 28, 2025

    Airworthiness Directives; Textron Aviation, Inc. (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for all Textron Aviation, Inc., Model 525B airplanes. This proposed AD was prompted by the manufacturer's revision of the aircraft maintenance manual (AMM) to introduce more restrictive inspection intervals. This proposed AD would require revising the Airworthiness Limitations Section (ALS) of the…

    Federal Register →
  • Sep 17, 2024

    Airworthiness Directives; Textron Aviation Inc. (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes

    The FAA is adopting a new airworthiness directive (AD) for Textron Aviation Inc. (Textron) (type certificate previously held by Cessna Aircraft Company) Model 525, 525A, and 525B airplanes with Tamarack active technology load alleviation system (ATLAS) winglets installed per Supplemental Type Certificate (STC) No. SA03842NY. This AD was prompted by a report…

    Federal Register →
  • Mar 22, 2024

    Airworthiness Directives; Textron Aviation Inc. (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for Textron Aviation Inc. (Textron) (type certificate previously held by Cessna Aircraft Company) Model 525, 525A, and 525B airplanes with Tamarack active technology load alleviation system (ATLAS) winglets installed per Supplemental Type Certificate (STC) No. SA03842NY. This proposed AD was promp…

    Federal Register →
  • Apr 12, 2021

    Airworthiness Directives; Garmin International GMN-00962 GTS Processor Units

    The FAA is adopting a new airworthiness directive (AD) for certain Garmin International (Garmin) GMN-00962 GTS processor units (GTS 825, GTS 855, GTS 8000). This AD was prompted by reports of GTS processor units issuing resolution advisories (RAs) when no risk of collision or loss of separation exists between the airplanes involved. This AD requires updatin…

    Federal Register →
  • Dec 14, 2020

    Airworthiness Directives; Garmin International GMN-00962 GTS Processor Units (GTS 825, GTS 855, GTS 8000)

    The FAA proposes to adopt a new airworthiness directive (AD) for certain Garmin International (Garmin) GMN-00962 GTS processor units (GTS 825, GTS 855, GTS 8000). This proposed AD was prompted by reports of GTS processor units issuing resolution advisories (RAs) when no risk of collision or loss of separation exists between the airplanes involved. This prop…

    Federal Register →
  • Nov 23, 2020

    Airworthiness Directives; Textron Aviation, Inc., (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes

    The FAA is superseding Airworthiness Directive (AD) AD 2019- 08-13 for Textron Aviation, Inc., (type certificate previously held by Cessna Aircraft Company) Models 525, 525A, and 525B airplanes with Tamarack Aerospace Group (Tamarack) active load alleviation system (ATLAS) winglets installed in accordance with Supplemental Type Certificate (STC) SA03842NY.…

    Federal Register →
  • Jun 2, 2020

    Airworthiness Directives; Textron Aviation, Inc. Airplanes

    The FAA proposes to supersede Airworthiness Directive (AD) 2019-08-13 for Textron Aviation, Inc. (type certificate previously held by Cessna Aircraft Company) Models 525, 525A, and 525B airplanes with Tamarack active load alleviation system (ATLAS) winglets installed in accordance with Supplemental Type Certificate (STC) SA03842NY. AD 2019- 08-13 resulted f…

    Federal Register →
  • May 24, 2019

    Airworthiness Directives; Textron Aviation, Inc. Airplanes

    We are adopting a new airworthiness directive (AD) for certain Textron Aviation, Inc. (type certificate previously held by Cessna Aircraft Company) Models 525, 525A, and 525B airplanes with Tamarack active load alleviation system (ATLAS) winglets installed in accordance with Supplemental Type Certificate (STC) SA03842NY. This AD results from mandatory conti…

    Federal Register →
  • Sep 9, 2014

    Airworthiness Directives; Rockwell Collins, Inc. Transponders

    We are adopting a new airworthiness directive (AD) for certain Rockwell Collins TDR-94 and TDR-94D Mode select (S) transponders that are installed on airplanes. This AD was prompted by instances where the TDR-94 and TDR-94D Mode S transponders did not properly respond to Mode S Only All-Call interrogations when the airplane transitioned from a ground to air…

    Federal Register →
  • May 22, 2014

    Airworthiness Directives; Rockwell Collins, Inc. Transponders

    We propose to adopt a new airworthiness directive (AD) for certain Rockwell Collins TDR-94 and TDR-94D Mode select (S) transponders that are installed on airplanes. This proposed AD was prompted by instances where the TDR-94 and TDR-94D Mode S transponders did not properly respond to Mode S Only All-Call interrogations when the airplane transitioned from a…

    Federal Register →
  • Feb 5, 2008

    Airworthiness Directives; Cessna Aircraft Company Models 525, 525A, and 525B Airplanes

    We are adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) Models 525, 525A, and 525B airplanes. This AD requires you to inspect the lower wing skin structure, forward wing spar, lower fuselage skin, fairings, and the external fairing frames for corrosion; repair any damage found; apply a corrosion inhibitive sealant to…

    Federal Register →
  • Nov 20, 2007

    Airworthiness Directives; Cessna Aircraft Company, Model 525B Airplanes

    The FAA is adopting a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) Model 525B airplanes. This AD requires you to incorporate electrical power relay circuit protection kit part number (P/N) SB525B-24-02. This AD results from both the need to protect aircraft wiring left unprotected in the original design and a report of a Mod…

    Federal Register →
  • Oct 26, 2007

    Airworthiness Directives; Cessna Aircraft Company Models 525, 525A, and 525B Airplanes

    We propose to adopt a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) Models 525, 525A, and 525B airplanes. This proposed AD would require you to inspect the lower wing skin structure, forward wing spar, lower fuselage skin, fairings, and the external fairing frames for corrosion; repair any damage found; apply a corrosion inhi…

    Federal Register →
  • Aug 23, 2005

    Airworthiness Directives; The Cessna Aircraft Company Models 525, 525A, and 525B Airplanes

    The FAA adopts a new airworthiness directive (AD) for certain The Cessna Aircraft Company (Cessna) Models 525, 525A, and 525B airplanes. This AD requires you to install identification sleeves on the wiring for both engine fire extinguisher bottles. This AD results from reports of incorrectly connecting wires to the engine fire extinguisher bottles. We are i…

    Federal Register →
  • May 19, 2005

    Airworthiness Directives; The Cessna Aircraft Company Models 525, 525A, and 525B Airplanes

    The FAA proposes to adopt a new airworthiness directive (AD) for certain The Cessna Aircraft Company (Cessna) Models 525, 525A, and 525B airplanes. This proposed AD would require you to install identification sleeves on the wiring for both engine fire extinguisher bottles. This proposed AD results from reports of incorrectly connecting the wires to the engi…

    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.