{"id":"F2006B02044","name":"AD/AA-5/12 - Flap Surfaces - Inspection","slug":"ad-aa-5-12-flap-surfaces-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41266,"registerId":"commonwealth-F2006B02044-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/AA-5/12 - Flap Surfaces - Inspection","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-description: CASA Airworthiness Directive\nmeta-generator: Aspose.Words for .NET 22.10.0\nmeta-keywords: Issue NK,Aircraft below 5700 kg,Gulfstream (Grumman American/ American Aviation) AA-5 Series Aeroplanes,Flap Surfaces - Inspection,12\ntitle: Airworthiness Directive - AD/AA-5/12 - Flap Surfaces - Inspection\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Gulfstream (Grumman American/ American Aviation) AA-5 Series Aeroplanes\n\n \n\nAD/AA-5/12 Flap Surfaces - Inspection NK\n\nApplicability: Models: AA-5 with S/Nos. AA5-0600 to AA5-0834; AA5A with S/Nos. AA5A-0001 to AA5A-0013, AA5A-0015 to AA5A-0017.\n\n \n\nAA5b with S/Nos. AA5B-0001 to AA5B-0118, AA5B-0120, AA5B-0123, AA5B- 0124, AA5B-0132.\n\n \n\nDocument: Grumman American Aviation SL No. 758.\n\n \n\nCompliance: Within 100 hours’ time in service after 27 February 1976.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2891},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope: a targeted safety inspection for specific AA-5 series aircraft following manufacturer guidance, with no evidence of scope creep into broader operational requirements."},"complexity_factors":["Single, discrete maintenance task with no conditional logic","Applicability limited to specific serial number ranges (though with gaps in AA5B series)","References external technical document (Service Letter No. 758) rather than embedding procedures","Straightforward compliance metric (100 hours time-in-service)"],"plain_english_summary":"This Airworthiness Directive (safety rule) mandates that owners of specific **Gulfstream/Grumman American AA-5 series aircraft** must inspect their **flap surfaces**—the moving parts on the wings that help with landing and takeoff.\n\n**Who must comply?**\nOnly owners of these specific serial numbers:\n- **AA-5**: AA5-0600 to AA5-0834\n- **AA5A**: AA5A-0001 to AA5A-0013 and AA5A-0015 to AA5A-0017  \n- **AA5B**: AA5B-0001 to AA5B-0118, plus specific outliers AA5B-0120, AA5B-0123, AA5B-0124, and AA5B-0132\n\n**What needs doing?**\nCarry out an inspection of the flap surfaces following the procedures in **Grumman American Aviation Service Letter No. 758**.\n\n**When?**\nWithin **100 hours of flight time** after 27 February 1976.\n\n**Why it matters:**\nCatches structural problems with the flaps before they fail during critical phases of flight—like when you're trying to land the plane."}},"importantCases":[],"_links":{"self":"/api/acts/ad-aa-5-12-flap-surfaces-inspection","history":"/api/acts/ad-aa-5-12-flap-surfaces-inspection/history","analysis":"/api/acts/ad-aa-5-12-flap-surfaces-inspection/analysis","conflicts":"/api/acts/ad-aa-5-12-flap-surfaces-inspection/conflicts","importantCases":"/api/acts/ad-aa-5-12-flap-surfaces-inspection/important-cases","documents":"/api/acts/ad-aa-5-12-flap-surfaces-inspection/documents"}}