{"id":"F2006B03804","name":"AD/BEECH 33/37 - Wing Forward Spar Carry-Through Structure","slug":"ad-beech-33-37-wing-forward-spar-carry-through-structure","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43400,"registerId":"commonwealth-F2006B03804-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 33/37 - Wing Forward Spar Carry-Through Structure","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)  \nBeechcraft 33 and 35-33 (Debonair/Bonanza) Series Aeroplanes\n\nAD/BEECH 33/37 Wing Forward Spar Carry-Through Structure 10/91\n\nApplicability: Model 35-33, 35-A33, 35-B33, 35-C33, E33, F33, AND G33 with serial numbers CD-1 through CD1304.\n\nModel 35-C33A, E33A and F33A with serial numbers CE-1 through CE-1192. Model E33C and F33C with serial numbers CJ-1 through CJ-179.\n\nRequirement: Action in accordance with the Technical Requirements of FAA AD 91-14-13 Amdt 39-7054.\n\nNote: Beech SB 2360 refers.\n\nCompliance: As specified in Requirement Document with a revised effective date of 3 October 1991, for Australian registered aircraft.\n\nBackground: The FAA has received reports of cracks in the wing front carry-through frame structure. This Directive requires initial and repetitive inspections and repair or reinforcement if found cracked.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1695},"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This appears to be the original issuance of the directive, maintaining its original scope of addressing specific wing spar cracking issues in defined Beechcraft 33 series aircraft."},"complexity_factors":["Incorporates external technical requirements by reference to FAA AD 91-14-13 rather than setting out inspections directly","Applicability determined by 11 different model variants and 4 distinct serial number ranges","Conditional compliance structure requiring inspection first, followed by repair/reinforcement only if defects are found","Cross-reference to Beechcraft Service Bulletin 2360 for additional guidance"],"plain_english_summary":"This safety directive requires owners/operators of certain Beechcraft Debonair and Bonanza Model 33-series aircraft to inspect the forward spar carry‑through wing structure for cracks, and to repair or reinforce any defects. It adopts the FAA’s AD 91‑14‑13 (effective in Australia 3 Oct 1991) for inspection intervals and corrective actions. The rule targets specific serial-numbered aircraft to prevent structural failure and ensure continued airworthiness."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-33-37-wing-forward-spar-carry-through-structure","history":"/api/acts/ad-beech-33-37-wing-forward-spar-carry-through-structure/history","analysis":"/api/acts/ad-beech-33-37-wing-forward-spar-carry-through-structure/analysis","conflicts":"/api/acts/ad-beech-33-37-wing-forward-spar-carry-through-structure/conflicts","importantCases":"/api/acts/ad-beech-33-37-wing-forward-spar-carry-through-structure/important-cases","documents":"/api/acts/ad-beech-33-37-wing-forward-spar-carry-through-structure/documents"}}