{"id":"F2007L00201","name":"AD/CAP 10/10 - Wing Main Spar Wooden Centre Block","slug":"ad-cap-10-10-wing-main-spar-wooden-centre-block","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":68416,"registerId":"commonwealth-F2007L00201-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Avions Mudry Cap Series Aeroplanes","sectionType":"division","heading":"Avions Mudry Cap Series Aeroplanes","content":"### Avions Mudry Cap Series Aeroplanes\n\n| AD/CAP 10/10 | Wing Main Spar Wooden Centre Block | 3/2007 DM |\n| ------------ | ---------------------------------- | --------- |\n\n| Applicability: | All CAP 10B aircraft that have been fitted with major change 000302 (wood/carbon-made wing) and wood/carbon-made wings part number 11.56.00.010 with serial numbers 001 through 084.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |\n| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. Flick manoeuvres are prohibited on affected CAP 10B aircraft.2. Inspect the spar web and fill up the surface cracks with a two component epoxy compound in accordance with the Accomplishment Instructions of Apex Aircraft Service Bulletin No. 060307 and Apex Aircraft Instruction No. 1001766, both at the latest EASA approved revision.Accomplishment of Apex Aircraft Instruction No. 1001766 may only be carried out by an appropriately qualified/licensed person.If any cracking or damage is detected during the inspection in either the rear or front wing spar web, before further flight, contact Apex Aircraft for a repair solution.3. Install reinforcement plates 97.56.00.002 in accordance with Apex Aircraft Service Bulletin No. 060307 and Apex Aircraft Instruction No. 1001766, both at the latest EASA approved revision.As of the effective date of this Directive, no person shall install an Apex Aircraft wing part number 11.56.00.010 on any CAP 10B aircraft unless it has been inspected and modified in accordance with the Accomplishment Instructions of Apex Aircraft Service Bulletin No. 060307 and Apex Aircraft Instruction No. 1001766, both at the latest EASA approved revision.Note: EASA AD 2007-0015 refers. |\n| Compliance:    | For Requirement 1: As of the effective date of this Directive; until accomplishment of Requirements 2 and 3.For Requirements 2 and 3: Within 50 hours after 15 March 2007, unless already accomplished. Thereafter, inspect in accordance with the Accomplishment Instructions of Apex Aircraft Service Bulletin No. 060307 at intervals not to exceed 13 months.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |\n\n|             | This Airworthiness Directive becomes effective on 25 January 2007.                                                                                                                                                                                                                                                                                                                                                                  |\n| ----------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Background: | The manufacturer received reports of recent inspections that revealed cracks in some spar wooden centre blocks. Investigation revealed that the cracks are generated by the wood drying. This Directive requires the installation of two reinforcement plates on the wing spar to counter the shear loading, requires implementation of corrective actions to slow down the wood drying, and introduces new repetitive inspections. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n22 January 2007","sortOrder":0},{"sectionNumber":"AD/CAP 10/10","sectionType":"part","heading":"AD/CAP 10/10","content":"## AD/CAP 10/10","sortOrder":1},{"sectionNumber":"Wing Main Spar Wooden Centre Block","sectionType":"part","heading":"Wing Main Spar Wooden Centre Block","content":"## Wing Main Spar Wooden Centre Block","sortOrder":2},{"sectionNumber":"3/2007 DM","sectionType":"part","heading":"3/2007 DM","content":"## 3/2007 DM","sortOrder":3}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original, narrow scope. It addresses a specific safety defect in a specific aircraft part (wooden wing spar centre blocks on CAP 10B aircraft with specific serial numbers). There is no evidence of scope creep; the directive remains tightly focused on the identified cracking issue and required remedial actions."},"complexity_factors":["Single, specific technical subject matter (one aircraft type, one part)","Clear, numbered requirements with straightforward compliance dates","Only 3 main requirements with explicit timelines","Minimal cross-referencing (only references to manufacturer service bulletins and one EASA AD)","No nested exceptions or conditional logic — requirements apply uniformly to all affected aircraft","Short document (approximately 400 words of substantive content)","Single defined applicability criterion (specific part numbers and serial numbers)"],"plain_english_summary":"This CASA Airworthiness Directive orders owners/operators of CAP 10B aircraft with specified wooden/carbon fibre wings to address drying-related cracks found in the wooden centre block of the main wing spar. It immediately bans flick manoeuvres, requires prompt inspection, epoxy filling of surface cracks, installation of metal reinforcement plates, and recurring inspections, and bars future installation of unmodified wings. \n\nThe measure prevents possible wing failure during high‑stress aerobatics."},"flash_summary":{"complexity_score":6,"scope_assessment":{"changed":false,"description":"The Directive applies as drafted to a defined subset of CAP 10B aircraft (wing part 11.56.00.010, serials 001–084) and prescribes inspection, repair, reinforcement and an operational prohibition until compliance. The text shows no amendment to that original scope; it narrows affected aircraft by serial number and ties required actions to specific Apex documents and EASA-approved revisions."},"complexity_factors":["Narrow, serial-numbered applicability: CAP 10B with major change 000302 and wing part 11.56.00.010, serials 001–084 (limits affected fleet size).","Immediate operational restriction: prohibition of flick manoeuvres until Requirements 2 and 3 are accomplished (operational impact).","Technical remedial steps reference external documents: Apex Aircraft Service Bulletin No. 060307 and Apex Aircraft Instruction No. 1001766 at the latest EASA-approved revision (requires checking current revisions).","Work must be done by an appropriately qualified/licensed person for certain tasks (qualification/compliance burden).","Mandatory hardware fitment: installation of reinforcement plates 97.56.00.002 (parts, labour, and record-keeping).","Installation ban: no person may install wing part 11.56.00.010 on any CAP 10B unless inspected and modified per the Accomplishment Instructions (supply-chain/maintenance restriction).","Timing and recurrence rules: initial compliance within 50 flight hours after 15 March 2007 (unless already done), then inspections at intervals not to exceed 13 months (ongoing compliance cost).","Mandatory action on detected damage: if cracking/damage found in front or rear spar web, contact Apex before further flight (manufacturer-directed repairs and potential grounding).","Cross-reference to EASA AD 2007-0015 (regulatory alignment and reliance on foreign authority documents).","Enforcement and effective date set by CASA (effective 25 January 2007) and delegated authority noted (administrative implementation)."],"plain_english_summary":"This directive bars flick manoeuvres on specified CAP 10B aeroplanes until their wooden/wood‑carbon wing spar centre blocks are inspected, epoxy‑treated and fitted with reinforcement plates under Apex Aircraft service instructions (required before installing wing part 11.56.00.010, serials 001–084). Manufacturer reports cracks from wood drying; the measures aim to counter shear loads, slow drying and impose an initial compliance within 50 flight hours after 15 March 2007 and recurring inspections no more than every 13 months."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cap-10-10-wing-main-spar-wooden-centre-block","history":"/api/acts/ad-cap-10-10-wing-main-spar-wooden-centre-block/history","analysis":"/api/acts/ad-cap-10-10-wing-main-spar-wooden-centre-block/analysis","conflicts":"/api/acts/ad-cap-10-10-wing-main-spar-wooden-centre-block/conflicts","importantCases":"/api/acts/ad-cap-10-10-wing-main-spar-wooden-centre-block/important-cases","documents":"/api/acts/ad-cap-10-10-wing-main-spar-wooden-centre-block/documents"}}