{"id":"F2006B05262","name":"AD/CESSNA 206/56 Amdt 1 - Brackett Engine Air Filters","slug":"ad-cessna-206-56-amdt-1-brackett-engine-air-filters","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45614,"registerId":"commonwealth-F2006B05262-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 206/56 Amdt 1 - Brackett Engine Air Filters","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Safety Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \n\nAIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\n![](image.001.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/CESSNA 206/56 and issues the following AD under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\nCessna 206 Series Aeroplanes\n\nAD/CESSNA 206/56\n\nAmdt 1\n\n  \nBrackett Engine Air Filters 5/2003\n\nApplicability: Cessna TP206 and TU206 series aircraft incorporating a Brackett Aero Filters Inc. engine air inlet filter Part Number (P/N) BA-2410.\n\nNote 1: Brackett air filters are an approved alternative to the original Cessna air filter. This Directive is only applicable to aircraft that have had the original Cessna air filter replaced by a Brackett air filter.\n\nRequirement: Inspect the engine air filter element for correct installation. If the filter has only one grill screen, install an additional grill screen P/N 2404-00.\n\nNote 2: The BA-2410 filter element was revised in 1993 to have a screen on both faces of the filter.\n\nNote 3: FAA AD 2002-26-03 refers.\n\nCompliance: Effective 15 May 2003; unless previously accomplished; at next access to the engine air filter or next scheduled aircraft periodic inspection, whichever occurs first.\n\nThis amendment becomes effective on 15 May 2003.\n\nBackground: This Directive was originally issued to require an inspection of Brackett engine air inlet filters to ensure the filter has been installed correctly. The requirement reflects the NTSB investigation of a fatal Cessna T210 accident disclosed the single grill screen had been installed incorrectly allowing the filter element to be ingested. This amendment requires a second screen to be installed on all applicable Brackett air filter installations.\n\nThe original issue of this Airworthiness Directive became effective on 11 July 2002.\n\n![](image.002.png)  \n\nJames Coyne\n\n![](image.001.png)  \nDelegate of the Civil Aviation Safety Authority 3 April 2003\n\nThe above AD is notified in the Commonwealth of Australia Gazette on 23 April 2003.\n\n  \nPage 1 of 1","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment remains tightly focused on its original safety purpose — preventing engine air filter ingestion in Cessna 206 aircraft. The amendment simply strengthens the original requirement by mandating a second grill screen rather than just inspection, which is a logical evolution of the same safety measure following the NTSB investigation findings."},"complexity_factors":["Single, clearly defined applicability (one aircraft series, one specific part number)","Straightforward two-step requirement (inspect, then install if needed)","Only 3 short notes providing context","Simple compliance deadline structure (fixed date or next maintenance event)","No cross-references to other legislation beyond a single FAA AD citation for reference","No defined terms section, no conditional logic beyond the single-screen test","Total length: approximately 300 words"],"plain_english_summary":"This AD requires owners/operators of Cessna TP206/TU206 aircraft fitted with Brackett BA-2410 engine air filters to inspect filter installation and install a second grill screen (P/N 2404-00) if only one screen is present. It responds to a fatal engine-ingestion accident and must be done by 15 May 2003 or at the next filter access/inspection, whichever comes first."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"Yes. The original AD required inspection of Brackett engine air filters; Amendment 1 now mandates installation of a second grill screen (P/N 2404-00) where only a single screen is fitted, thereby expanding the remedial obligation and revoking the prior AD (Requirement; Background; Applicability)."},"complexity_factors":["Narrow, specific applicability to Cessna TP206 and TU206 aircraft fitted with Brackett P/N BA-2410 (Applicability)","Simple technical mandate: inspect and, if only one grill screen is fitted, add grill screen P/N 2404-00 (Requirement; Note 2)","Clear compliance timing: at next access to the engine air filter or at the next scheduled periodic inspection (Compliance)","Regulatory action taken by CASA delegate under subregulation 39.1(1); revokes the prior AD and issues the amendment (introductory paragraph)","Cross-reference to FAA AD 2002-26-03 and reliance on an NTSB investigation for the unsafe-condition rationale (Note 3; Background)","Compliance cost and work (inspection, parts, labour) fall on aircraft owners/operators who installed the Brackett alternative filter (Requirement; Applicability)","Amendment increases obligation from inspection-only to mandatory hardware addition where a single screen exists (Background)"],"plain_english_summary":"Requires inspection of Brackett BA-2410 engine air filters on Cessna TP206/TU206 aircraft and, where the element has only one grill screen, mandates installation of an additional grill screen (P/N 2404-00) at the next access or scheduled inspection (Requirement; Applicability; Compliance). Applies only where the original Cessna filter was replaced by the Brackett unit; CASA issued the change after an NTSB finding about single‑screen ingestion risk—owners/operators bear inspection and installation costs (Applicability; Background)."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-206-56-amdt-1-brackett-engine-air-filters","history":"/api/acts/ad-cessna-206-56-amdt-1-brackett-engine-air-filters/history","analysis":"/api/acts/ad-cessna-206-56-amdt-1-brackett-engine-air-filters/analysis","conflicts":"/api/acts/ad-cessna-206-56-amdt-1-brackett-engine-air-filters/conflicts","importantCases":"/api/acts/ad-cessna-206-56-amdt-1-brackett-engine-air-filters/important-cases","documents":"/api/acts/ad-cessna-206-56-amdt-1-brackett-engine-air-filters/documents"}}