{"id":"F2006B06251","name":"AD/PITTS S-2/6 Amdt 1 - Upper Wing Front Spar to Cabane Fitting - Inspection","slug":"ad-pitts-s-2-6-amdt-1-upper-wing-front-spar-to-cabane-fitting-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":47227,"registerId":"commonwealth-F2006B06251-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/PITTS S-2/6 Amdt 1 - Upper Wing Front Spar to Cabane Fitting - Inspection","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)  \nPitts S-1 and S-2 Series Aeroplanes\n\nAD/PITTS S-2/6\n\nAmdt 1\n\n  \n\nUpper Wing Front Spar to Cabane Fitting \\- Inspection\n\n  \n5/95\n\nApplicability: All model S-1S and S-2A aircraft.\n\nRequirement: Remove all paint and fabric on the fittings below the wing lower surface contour (removal of the AN5 bolt is not necessary). Inspect, using either a 10X hand lens or dye penetrant method per CAO 108.10, the front and rear faces of the upper wing front spar to cabane fitting, especially in the area immediately above the AN5 bolt at the lower end of the fitting. Re-finish bare metal surfaces exposed for the inspection.\n\nNote: Pitts Service Letters 2 and 3 refer.\n\nCompliance: Initially inspect:\n\n    (i) S-1S models before 25 hours time in service after 27 April 1995 or before 20 July 1995, whichever occurs first;\n\n    (ii) The original Compliance for the S-2A model remains unchanged; Before 25 hours time in service after 14 January 1974.\n\nRe-inspect at intervals not to exceed 200 hours time in service or 1 year, whichever occurs first.\n\nBackground: The original issue of this AD applied only to the model S-2A, without the calendar year limitation on repeat inspections. This amendment extends applicability to the S- 1S model and includes a calendar year interval for repeat inspections. Acceptable inspection methods are also specified.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1742},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":true,"description":"The original directive applied only to the S-2A model without a calendar year limitation for repeat inspections. This amendment extends applicability to the S-1S model and adds a mandatory 12-month calendar interval for re-inspections, regardless of flight hours."},"complexity_factors":["Single, specific mechanical task with clear procedural steps","Only two aircraft models affected with defined compliance pathways","One external cross-reference to CAO 108.10 for inspection methodology","Dual-threshold compliance metric (flight hours vs calendar time)"],"plain_english_summary":"This order mandates safety inspections of the cabane fitting that secures the upper wing on Pitts S-1S and S-2A aircraft to detect cracks or fatigue. Owners must strip paint/fabric below the wing, inspect the fitting faces (10× magnifier or dye‑penetrant per CAO 108.10), refinish exposed metal, and repeat every 200 flight hours or 12 months. Initial compliance deadlines differ by model. It prevents potential in‑flight wing failure and extends prior S-2A coverage to include S-1S with a strict annual limit."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pitts-s-2-6-amdt-1-upper-wing-front-spar-to-cabane-fitting-inspection","history":"/api/acts/ad-pitts-s-2-6-amdt-1-upper-wing-front-spar-to-cabane-fitting-inspection/history","analysis":"/api/acts/ad-pitts-s-2-6-amdt-1-upper-wing-front-spar-to-cabane-fitting-inspection/analysis","conflicts":"/api/acts/ad-pitts-s-2-6-amdt-1-upper-wing-front-spar-to-cabane-fitting-inspection/conflicts","importantCases":"/api/acts/ad-pitts-s-2-6-amdt-1-upper-wing-front-spar-to-cabane-fitting-inspection/important-cases","documents":"/api/acts/ad-pitts-s-2-6-amdt-1-upper-wing-front-spar-to-cabane-fitting-inspection/documents"}}