{"id":"F2006B06434","name":"AD/R22/29 - Main Rotor Pitch Link","slug":"ad-r22-29-main-rotor-pitch-link","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":47832,"registerId":"commonwealth-F2006B06434-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/R22/29 - Main Rotor Pitch Link","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nRobinson R22 Series Helicopters\n\nAD/R22/29 Main Rotor Pitch Link 8/87 TX\n\nApplicability: All R22 helicopters S/N 0580 through S/N 0644. All R22 helicopters overhauled or repaired at RHC completed between 15 August 1986 and 7 May 1987. R22 helicopters fitted with pitch link parts A258-1 \\-2, or \\-3, received from RHC between 15 August 1986 and 7 May 1987.\n\nRequirement: 1. Inspect main rotor pitch links for cracks in accordance with Part A of RHC S.B. No. 57.\n\n2. Replace fittings in accordance with Part B of RHC S.B. No. 57.\n\nCompliance: 1. Prior to next flight after 16 June 1987, and each flight thereafter until Part B is accomplished.\n\nNote 1. If cracks are found, perform Part B of RHC S.B. No. 57 prior to any further flight.\n\nNote 2. This inspection may be accomplished by the pilot in command in which case he shall enter and certify for this A.D. in col. 2 part 3 of the Maintenance Release on each occasion.\n\n2. Within the next 10 flight hours or by 15 July 1987 whichever occurs first.\n\nBackground: Flaws have been found in the material used during a production run of the A258-2 and A258-3 pitch link components. These flaws produce lengthwise cracks in the parts and, if allowed to progress, these cracks could lead to failure of the pitch link and loss of control of the helicopter.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"Scope aligns with the Directive's stated purpose: it targets helicopters and parts from a specific production/repair window where material flaws were identified. The measures are confined to those serial numbers, overhauls/repairs and listed part numbers and do not broaden obligations beyond that cohort."},"complexity_factors":["Narrow, specific applicability (limited serial numbers and narrow date range for overhauls/parts)","Two-step compliance with an immediate recurring inspection requirement until replacement is done","Urgent, short deadlines (inspect before next flight; replacement within 10 flight hours or by a set date)","Dependence on an external document for procedures (RHC Service Bulletin No.57) which must be obtained and followed","Allowing pilot-in-command to perform inspections creates a mixed compliance path and a specific certification entry requirement","Immediate grounding risk if cracks are found — operational and parts-supply consequences for operators"],"plain_english_summary":"This Airworthiness Directive requires owners/operators of certain Robinson R22 helicopters (S/N 0580–0644, and R22s overhauled/repaired or fitted with A258-1/‑2/‑3 parts from RHC between 15 Aug 1986 and 7 May 1987) to inspect main rotor pitch links for cracks before the next flight after 16 June 1987 and to replace affected fittings per RHC Service Bulletin No.57.\n\nOperators bear inspection and replacement costs; CASA mandates compliance and the RHC bulletin prescribes the method. Pilots may perform and must certify inspections; any crack found requires replacement before further flight."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive addressing a specific manufacturing defect. It has not expanded beyond its original purpose of grounding/repairing defective pitch links in the identified production batch."},"complexity_factors":["Single, discrete safety issue with clear mechanical trigger (specific part numbers and date ranges)","Only 2 compliance actions required (inspection + replacement)","Simple conditional logic: 'if cracks found, stop flying'","No nested definitions or interpretive sections","Cross-reference to external document (RHC Service Bulletin No. 57) but with specific part citations (Part A and Part B)","Limited applicability criteria using objective identifiers (serial numbers, dates, part numbers)","Approximately 200 words total"],"plain_english_summary":"This AD orders immediate, recurring preflight inspections and prompt replacement of defective main rotor pitch links on Robinson R22 helicopters (S/N 0580–0644; and any R22 overhauled or repaired by Robinson or fitted with parts A258‑1/‑2/‑3 between 15 Aug 1986–7 May 1987) because manufacturing cracks can cause catastrophic rotor failure.\n\nInspections must be done before each flight beginning 16 June 1987; replacement within 10 flight hours or by 15 July 1987. Pilots are authorized to perform and log the inspections."},"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-r22-29-main-rotor-pitch-link","history":"/api/acts/ad-r22-29-main-rotor-pitch-link/history","analysis":"/api/acts/ad-r22-29-main-rotor-pitch-link/analysis","conflicts":"/api/acts/ad-r22-29-main-rotor-pitch-link/conflicts","importantCases":"/api/acts/ad-r22-29-main-rotor-pitch-link/important-cases","documents":"/api/acts/ad-r22-29-main-rotor-pitch-link/documents"}}