{"id":"F2006B08120","name":"AD/CESSNA 210/70 - Horizontal Stabiliser Attachment Brackets","slug":"ad-cessna-210-70-horizontal-stabiliser-attachment-brackets","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115236,"registerId":"commonwealth-F2006B08120-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 210/70 - Horizontal Stabiliser Attachment Brackets","content":"![](image.002.png)![](image.001.png)AIRWORTHINESS DIRECTIVE\n\n![](image.002.png)For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 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 210 Series Aeroplanes\n\nAD/CESSNA 210/70 Horizontal Stabiliser Attachment\n\nBrackets\n\n  \n7/2002\n\n| Applicability: | Model 210G210H                             | Serial Numbers21058819 through 2105893621058937 through 21059061                                                 |\n| -------------- | ------------------------------------------ | ---------------------------------------------------------------------------------------------------------------- |\n|                | 210J210K and T210K                         | 21059062 through 2105919921059200 through 21059502                                                               |\n|                | 210L and T210L210M and T210M210N and T210N | 21059503 through 21061041, 21061043 through 2106157321061042, 21061574 through 2106295421062955 through 21064897 |\n|                | P210NT210G                                 | P21000001 through P21000834T210-0198 through T210-0307                                                           |\n|                | T210HT210J                                 | T210-0308 through T210-0392T210-0393 through T210-0454, 21058140                                                 |\n\nRequirement: 1. Check the maintenance records, and determine whether a horizontal stabiliser attachment reinforcement bracket (bracket) part number (P/N) 1232624-1 is installed that was shipped by Cessna from 27 February 1998 through 17 March 2000. If the installed brackets were not shipped by Cessna between 27 February 1998 and 17 March 2000, no further action is required by this Directive.\n\n    2. If the above check reveals that affected P/N 1232624-1 brackets are installed, visually inspect the left and right brackets for existence of seam welds along both the lower inboard and outboard wall/flange.\n\nCessna 210 Series Aeroplanes\n\nAD/CESSNA 210/70 (Continued)\n\n    3. If no seam weld is found on the left or right bracket during the Requirement 2 inspection, before further flight, replace with a new or serviceable P/N 1232624- 1 bracket. If the left and right brackets have seam welds along both the lower inboard and outboard wall/flange, no further action is required.\n\nNote: FAA AD 2002-07-01 Amdt 39-12695 refers.\n\nCompliance: Within 50 hours time in service after 11 July 2002, unless already accomplished.\n\nThis Airworthiness Directive becomes effective on 11 July 2002.\n\nBackground: The FAA received a report that certain horizontal stabiliser attachment reinforcement brackets were manufactured without seam welds. This Directive specifies actions to detect and replace structurally deficient attachment brackets. Continued use of such brackets could result in structural failure of the horizontal stabiliser.\n\n![](image.003.jpeg)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 28 May 2002\n\n![](image.002.png)The above AD is notified in the Commonwealth of Australia Gazette on 19 June 2002.","sortOrder":0}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD applies only to specified Cessna 210 models and serial-number ranges and to brackets P/N 1232624-1 shipped in the stated date range; it implements targeted detection and replacement of brackets lacking seam welds to correct the unsafe condition described in the Background. It does not broaden obligations beyond those aircraft/parts and the stated inspection/replacement requirements."},"complexity_factors":["Multiple affected aircraft models and extensive serial-number ranges increase identification work for operators (Applicability block).","Requirement 1 depends on determining whether brackets were \"shipped by Cessna\" in a specific date window (27 Feb 1998–17 Mar 2000), which may require review of maintenance/supply records.","Inspection criterion is a simple visual check for seam welds on both lower inboard and outboard wall/flanges (Requirement 2), which is low technical complexity but binary in outcome.","If welds are missing, immediate replacement \"before further flight\" is mandatory (Requirement 3), creating a potential operational interruption until a new or serviceable P/N 1232624-1 bracket is installed.","Compliance timeframe is short (within 50 hours TIS of 11 July 2002), compressing scheduling for inspections and parts sourcing.","Directive cross-references FAA AD 2002-07-01, indicating harmonisation but requiring operators to reconcile two instruments where relevant (Note)."],"plain_english_summary":"This Airworthiness Directive requires operators of specified Cessna 210-series aeroplanes to check whether horizontal stabiliser reinforcement brackets P/N 1232624-1 shipped by Cessna between 27 February 1998 and 17 March 2000 are fitted. If those brackets are fitted, the left and right brackets must be visually inspected for seam welds on both lower inboard and outboard wall/flanges; any bracket lacking the welds must be replaced before further flight. CASA says the measure detects and replaces potentially structurally deficient brackets to prevent stabiliser failure; compliance is required within 50 flight hours."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive with a tightly scoped, single-purpose safety intervention. It addresses a specific manufacturing defect in a specific part for specific aircraft serial numbers. There is no evidence of scope creep; the directive remains focused on its original safety purpose of detecting and replacing defective stabiliser brackets."},"complexity_factors":["Multiple serial number ranges across 10+ aircraft variants requiring careful cross-referencing","Conditional logic with nested decision points (check records → inspect → replace if condition met)","Specific date range for part shipment (27 February 1998 to 17 March 2000) creates a narrow applicability window","Technical aviation terminology requiring domain knowledge (P/N, seam welds, time in service)","Reference to external FAA directive (AD 2002-07-01) for additional context"],"plain_english_summary":"This CASA safety order targets specific Cessna 210 series aeroplanes built within certain serial numbers, requiring owners/operators to check whether a batch of horizontal stabiliser attachment brackets (P/N 1232624-1) was installed. Brackets made Feb 1998–Mar 2000 may lack continuous seam welds and be structurally weak.\n\nAffected aircraft must confirm parts via maintenance records and visually inspect/replace any bracket without seam welds before next flight (within 50 flight hours from 11 July 2002) to prevent stabiliser separation and loss of control."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-210-70-horizontal-stabiliser-attachment-brackets","history":"/api/acts/ad-cessna-210-70-horizontal-stabiliser-attachment-brackets/history","analysis":"/api/acts/ad-cessna-210-70-horizontal-stabiliser-attachment-brackets/analysis","conflicts":"/api/acts/ad-cessna-210-70-horizontal-stabiliser-attachment-brackets/conflicts","importantCases":"/api/acts/ad-cessna-210-70-horizontal-stabiliser-attachment-brackets/important-cases","documents":"/api/acts/ad-cessna-210-70-horizontal-stabiliser-attachment-brackets/documents"}}