{"id":"F2016L01906","name":"AD/BEECH 300/8 Amdt 3 - Wing Attach Fittings, Bolts and Nuts","slug":"ad-beech-300-8-amdt-3-wing-attach-fittings-bolts-and-nuts","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":95568,"registerId":"commonwealth-F2016L01906-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Beechcraft 300 Series Aeroplanes","sectionType":"division","heading":"Beechcraft 300 Series Aeroplanes","content":"### Beechcraft 300 Series Aeroplanes\n\n| AD/BEECH 300/8 Amdt 3 | Wing Attach Fittings, Bolts and Nuts | 25/2016 |\n| --------------------- | ------------------------------------ | ------- |\n\n| Applicability: | All Beech 300 and B300 series aircraft.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. Inspect all of the outboard (upper forward, upper and lower aft) wing tension attach bolts and nuts in accordance with the latest revision of Beechcraft Structural Inspection and Repair Manual 98-39006, Section 57-18-01, Chart 201 (Model 300) or Section 57-18-02, Chart 201 (B300/B300C), as in force at the date of this AD.2. Replace all of the outboard (upper forward, upper and lower aft) wing bolts and nuts.3. Replace all of the outboard lower forward wing bolts and nuts (at the lower forward attach fitting).             |\n| Compliance:    | 1. Inspect at intervals not to exceed 5 years component time in service.2. Replace at intervals not to exceed 20 years or 20,000 hours component time in service, whichever occurs first.3. Replace at intervals not to exceed 5 years component time in service or at any time they are removed, whichever occurs first.                                                                                                                                                                                                                         |\n|                | This AD commences on 14 December 2016.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |\n| Background:    | This AD mandates the life and inspection period of outer wing attach bolts and nuts.Amendment 1 changed the Compliance part 2, so that it was the same as the replacement life specified in the Airworthiness Limitations section of the Maintenance Manual which is 15 years/15,000 hours, whichever occurs first.Amendment 2 changed the Compliance part 2, so that it is the same as the replacement life specified in the Airworthiness Limitations section of the Maintenance Manual which is 20 years/20,000 hours, whichever occurs first. |\n\n|     | This amendment clarifies the version of the Beechcraft Structural Inspection and Repair Manual to be complied with. |\n| --- | ------------------------------------------------------------------------------------------------------------------- |\n\n![](image.001.png)  \nBenjamin Wilson  \nDelegate of the Civil Aviation Safety Authority\n\n5 December 2016","sortOrder":0},{"sectionNumber":"AD/BEECH 300/8 Amdt 3","sectionType":"part","heading":"AD/BEECH 300/8 Amdt 3","content":"## AD/BEECH 300/8 Amdt 3","sortOrder":1},{"sectionNumber":"Wing Attach Fittings, Bolts and Nuts","sectionType":"part","heading":"Wing Attach Fittings, Bolts and Nuts","content":"## Wing Attach Fittings, Bolts and Nuts","sortOrder":2},{"sectionNumber":"25/2016","sectionType":"part","heading":"25/2016","content":"## 25/2016","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":true,"description":"Yes. The AD's replacement-life requirement for the outboard wing attach bolts/nuts has been amended since issuance: Amendment 1 set replacement life to 15 years/15,000 hours; Amendment 2 updated it to 20 years/20,000 hours (whichever occurs first). The latest amendment also clarifies which revision of the Beechcraft Structural Inspection and Repair Manual (Sections 57-18-01/02, Chart 201) must be followed."},"complexity_factors":["Technical maintenance requirement tied to specific structural fittings (outboard upper forward, upper and lower aft, and lower forward attach fittings)","Multiple, differing compliance intervals (inspection ≤5 years; replacement ≤20 years/20,000 hours; some replacements ≤5 years or upon removal)","Cross-reference to the latest revision of the Beechcraft Structural Inspection and Repair Manual (Sections 57-18-01/02, Chart 201) — operator must ensure correct manual version is used","Amendment history that altered replacement life (original → 15 years/15,000 hours → 20 years/20,000 hours) requiring operators to track historical changes","Applicability to the entire Beech 300/B300 fleet increases aggregate cost and scheduling coordination for operators","Compliance commencement date (14 December 2016) requires retrospective calendar tracking for affected components and records"],"plain_english_summary":"This Airworthiness Directive requires owners/operators of all Beech 300 and B300 series aeroplanes to inspect and replace the outboard wing tension attach bolts and nuts according to the current Beechcraft Structural Inspection and Repair Manual. Inspections are required at intervals not exceeding 5 years; most bolt/nut replacements are required at intervals not exceeding 20 years or 20,000 hours (whichever occurs first), with some lower-forward attach bolts replaced every 5 years or when removed.\n\nAircraft owners/operators bear the cost and scheduling burden; the Civil Aviation Safety Authority enforces compliance and the AD references the latest manual revision and amended replacement lives."},"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":2,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope — mandating inspection and replacement intervals for specific wing attachment hardware on Beechcraft 300 series aircraft. Amendment 3 is purely clarifying (specifying which version of the manufacturer manual to use) and does not expand the AD to cover additional aircraft types, components, or maintenance requirements beyond the original wing attach bolts and nuts."},"complexity_factors":["Very short document (approximately 300 words)","Only 3 defined compliance categories with clear time intervals","Single cross-reference to manufacturer manual (Beechcraft Structural Inspection and Repair Manual 98-39006)","Minimal conditional logic — straightforward 'inspect every X years / replace every Y years' structure","No nested exceptions or complex definitional sections","Clear applicability statement (all Beech 300 and B300 series aircraft)"],"plain_english_summary":"This mandatory CASA Airworthiness Directive requires owners/operators of Beechcraft 300/B300 series aeroplanes in Australia to inspect and regularly replace critical wing‑to‑fuselage attachment bolts and nuts to prevent catastrophic wing failure.  \n\nIt updates prior ADs to align with manufacturer guidance and clarifies maintenance intervals and applicable technical procedures."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-300-8-amdt-3-wing-attach-fittings-bolts-and-nuts","history":"/api/acts/ad-beech-300-8-amdt-3-wing-attach-fittings-bolts-and-nuts/history","analysis":"/api/acts/ad-beech-300-8-amdt-3-wing-attach-fittings-bolts-and-nuts/analysis","conflicts":"/api/acts/ad-beech-300-8-amdt-3-wing-attach-fittings-bolts-and-nuts/conflicts","importantCases":"/api/acts/ad-beech-300-8-amdt-3-wing-attach-fittings-bolts-and-nuts/important-cases","documents":"/api/acts/ad-beech-300-8-amdt-3-wing-attach-fittings-bolts-and-nuts/documents"}}