{"id":"F2009L01678","name":"AD/TSA-600/25 Amdt 2 - Aft Horizontal/Vertical Stabiliser Attach Fitting - Inspection","slug":"ad-tsa-600-25-amdt-2-aft-horizontal-vertical-stabiliser-attach-fitting-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":78517,"registerId":"commonwealth-F2009L01678-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Aerostar (Piper/Ted Smith) 600 and 700 S","sectionType":"division","heading":"Aerostar (Piper/Ted Smith) 600 and 700 Series Aeroplanes","content":"### Aerostar (Piper/Ted Smith) 600 and 700 Series Aeroplanes\n\n| AD/TSA-600/25 Amdt 2 | Aft Horizontal/Vertical StabiliserAttach Fitting - Inspection | 6/2009 |\n| -------------------- | ------------------------------------------------------------- | ------ |\n\n| Applicability: | All models 600, 601 and 601P with S/Nos. 0001 to 0807.                                                                                                                                                                                                                      |\n| -------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | If not already installed, install attach fitting flange fastener kit, Piper KitNo. 59 600-88A.                                                                                                                                                                              |\n|                | Note 1: USA AD 80-19-14 (Amdt 39-3915) refers.                                                                                                                                                                                                                              |\n|                | Note 2: Piper Service Bulletin No. SB600-88A refers.                                                                                                                                                                                                                        |\n| Compliance:    | If inspection in accordance with Amendment 1 of this Directive, or Piper SB No. SB600-88A Part I, has previously been performed, before accumulating 200 hours time in service since the inspection was last performed, or before 5 September 2009, whichever occurs later. |\n|                | If inspection in accordance with Amendment 1 or Piper SB No. SB600-88A Part I has not previously been performed, no later than 5 September 2009.                                                                                                                            |\n|                | This Amendment becomes effective on 4 June 2009.                                                                                                                                                                                                                            |\n| Background:    | The original issue of this Directive in 1980 specified dye-penetrant inspection in accordance with SB No. SB600-88 at intervals not exceeding 100 hours.                                                                                                                    |\n|                | Amendment 1 in 1980 specified visual inspection in accordance with SBNo. SB600-88A at intervals not exceeding 200 hours, but did not allow termination of the inspections after installation of the attach fitting flange fastener kit.                                     |\n|                | Amendment 2 ensures that all affected aircraft have the attach fitting flange fastener kit installed. The periodic inspections are terminated.                                                                                                                              |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n24 April 2009","sortOrder":0},{"sectionNumber":"AD/TSA-600/25 Amdt 2","sectionType":"part","heading":"AD/TSA-600/25 Amdt 2","content":"## AD/TSA-600/25 Amdt 2","sortOrder":1},{"sectionNumber":"Aft Horizontal/Vertical StabiliserAttach","sectionType":"part","heading":"Aft Horizontal/Vertical StabiliserAttach Fitting - Inspection","content":"## Aft Horizontal/Vertical Stabiliser  \nAttach Fitting - Inspection","sortOrder":2},{"sectionNumber":"6/2009","sectionType":"part","heading":"6/2009","content":"## 6/2009","sortOrder":3}],"analysis":{"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"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This Amendment 2 remains tightly focused on its original purpose: ensuring structural integrity of stabiliser attach fittings on specific Aerostar aircraft. The scope has not expanded beyond the original 1980 safety concern; rather, it has been refined to provide a permanent solution (hardware installation) instead of the original temporary measure (repetitive inspections)."},"complexity_factors":["Short, single-purpose directive (approximately 250 words)","Only 3 defined applicability criteria (model numbers and serial number range)","Simple conditional structure: two compliance paths based on prior inspection history","Cross-references to one USA AD and one Piper Service Bulletin (external documents not reproduced)","No nested exceptions or sub-delegations","Clear terminating action (install kit = compliance complete)"],"plain_english_summary":"This CASA Airworthiness Directive mandates installation of Piper Kit No. 59 600-88A on aft horizontal and vertical stabiliser attach fittings of Aerostar 600/601/601P (SN 0001–0807). The retrofit permanently terminates the previous repetitive crack inspections, addressing a failure risk that could lead to loss of control. Compliance deadlines depend on prior inspection history; the AD took effect 4 June 2009 with final installation dates tied to 5 September 2009 or 200 flight hours as specified."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":true,"description":"Amendment 2 changes the earlier regime by mandating installation of the attach‑fitting flange fastener kit across the affected serial‑number range and by terminating the periodic dye‑penetrant/visual inspections that previously applied. Earlier versions required recurring inspections and did not allow termination after retrofit; this amendment converts that ongoing inspection obligation into a one‑off retrofit/compliance obligation (see Requirement, Compliance, and Background)."},"complexity_factors":["Narrow applicability by model and serial number (models 600, 601, 601P; S/N 0001–0807) increases tracking complexity for operators.","Conditional compliance: requirement depends on whether prior inspections (Amendment 1 or Piper SB600‑88A Part I) were done and on hours-in-service since that inspection.","Fixed calendar deadline (5 September 2009) plus an hours-based alternative creates dual compliance triggers.","Cross-references to external documents (USA AD 80‑19‑14 Amdt 39‑3915 and Piper SB SB600‑88A) require operators to consult other material to understand procedures.","Change of regime: termination of recurring inspections after kit installation shifts burden from recurring inspection scheduling to a one‑time modification and record-keeping.","Administrative actions (installation of kit, record updates, verification of prior inspections) fall to owners/operators and maintenance organisations."],"plain_english_summary":"This directive requires owners/operators of Aerostar (Piper/Ted Smith) 600, 601 and 601P aeroplanes (S/N 0001–0807) to install the Piper attach‑fitting flange fastener kit (Kit No. 59 600‑88A) if it is not already fitted, and ends the need for the previous periodic inspections once the kit is installed. It sets firm compliance deadlines tied to prior inspections or a calendar date (5 September 2009), shifting ongoing inspection burden into a one‑off retrofit and paperwork requirement."}},"importantCases":[],"_links":{"self":"/api/acts/ad-tsa-600-25-amdt-2-aft-horizontal-vertical-stabiliser-attach-fitting-inspection","history":"/api/acts/ad-tsa-600-25-amdt-2-aft-horizontal-vertical-stabiliser-attach-fitting-inspection/history","analysis":"/api/acts/ad-tsa-600-25-amdt-2-aft-horizontal-vertical-stabiliser-attach-fitting-inspection/analysis","conflicts":"/api/acts/ad-tsa-600-25-amdt-2-aft-horizontal-vertical-stabiliser-attach-fitting-inspection/conflicts","importantCases":"/api/acts/ad-tsa-600-25-amdt-2-aft-horizontal-vertical-stabiliser-attach-fitting-inspection/important-cases","documents":"/api/acts/ad-tsa-600-25-amdt-2-aft-horizontal-vertical-stabiliser-attach-fitting-inspection/documents"}}