{"id":"F2022L00971","name":"AD/BEECH 95/26 Amdt 4 Wing Bolt, Nut and Fitting","slug":"ad-beech-95-26-amdt-4-wing-bolt-nut-and-fitting","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":102525,"registerId":"commonwealth-F2022L00971-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Textron Aviation (Beechcraft) 95 (Travel","sectionType":"part","heading":"Textron Aviation (Beechcraft) 95 (Travelair) Series Aeroplanes","content":"# Textron Aviation (Beechcraft) 95 (Travelair) Series Aeroplanes\n\n| AD/BEECH 95/26 Amdt 4 | Wing Bolt, Nut and Fitting | 12/2022 |\n| --------------------- | -------------------------- | ------- |\n\n| Applicability: | All models of Textron Aviation (formerly Beechcraft) 95 series aeroplanes.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. Remove inspection covers from wing attach fitting recesses and inspect for corrosion or loss of inhibitor. Also inspect drain holes for any blockage that would cause water or debris to accumulate.Note 1: It may be necessary to use a bright light and mirror/magnifying glass to see hard to view areas of the bolt or fittings for signs of corrosion on accessible areas of the bolt. Non accessible areas like the bolt thread encapsulated by the nut will be inhibited, so it is highly unlikely they will experience corrosion unless the general surrounding area is corroded.2. Remove and inspect the wing bolts, washers and nuts in accordance with Beechcraft Shop Manual 95-590001-1C Revision C6, Section 4, as in force on the date of commencement of this AD.Note 2: The bolt torque should be checked before removal for inspection or replacement to confirm the bolt has been torqued to correct value. If the torque value is incorrect, other maintenance action may be required.3. Retire wing bolts, washers and nuts from service and replace with new hardware in accordance with Beechcraft Shop Manual 95-590001-1C Revision C6, Section 4, as in force on the date of commencement of this AD. Render unserviceable all hardware retired. |\n| Compliance:    | For Requirement 1:Every 12 calendar months for all aircraft. If visible corrosion is found within the recess or on visible portion of the bolt or nuts, washers or fittings, then Requirement 2 must be accomplished before further flight.For Requirement 2:a. For aircraft operating only in private operations:i. unless the inspection has already been accomplished in accordance with either of the requirement documents within 10 years from the installation of the wing bolts, inspect within 100 hours’ time in service (TIS) or 12 months from the commencement date of this AD, whichever occurs first.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |\n\n|             | Note 3: Installation of the wing bolts includes where they are removed for inspection purposes and re-installed.ii. re-inspect at intervals not to exceed 10 years from the previous inspection.b. For all other operational categories,i. unless the inspection has already been accomplished in accordance with either of the requirement documents within 5 years from the installation of the wing bolts, inspect within 100 hours’ time in service (TIS) or 12 months from the commencement date of this AD, whichever occurs first.Note 4: Installation of the wing bolts includes where they are removed for inspection purposes and re-installed.ii. re-inspect at intervals not to exceed 5 years from the previous inspection.For Requirement 3:Before 15 years TIS after the first installation of new zero time wing bolts.Mandatory reporting requirements:Both NIL findings of defects and confirmed defects for Requirement 2 inspection must be reported to CASA. |\n| ----------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|             | This AD commences on 19 July 2022.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |\n| Background: | The initial issue of this Airworthiness Directive became effective on 31 March 1985 and made mandatory the inspection and replacement periods for the wing attachment hardware as detailed in the Travel Air Shop Manual.Amendment 1 of this AD updated the revision status of the Travel Air Shop Manual.Amendment 2 of this AD removed reference to the alternate means of compliance that had been issued to allow in-situ inspection of the wing attachment bolts and nuts and required the manufacturer’s MPI.Amendment 3 of this AD was issued to extend the compliance time for Requirement 1 by two months whilst the proposed airworthiness directive process was conducted for AD/BEECH 95/26 Amdt 4.                                                                                                                                                                                                                                                                   |\n\n|     | Amendment 4 of this AD allows for aircraft used in private operations to be visually inspected for corrosion in the exposed areas of the wing attach bolts and wing fitting recess with the inspection interval increased from 5 to 10 years, in lieu of using the manufacturer’s maintenance instructions. For all other types of operations, the inspection requirements remain unchanged, requiring inspection of the wing attach hardware and fitting recess per the manufacturer’s maintenance data. |\n| --- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n\n![Delegate signature](image.001.jpeg)\n\nDavid Punshon  \nDelegate of the Civil Aviation Safety Authority\n\n15 June 2022","sortOrder":0},{"sectionNumber":"AD/BEECH 95/26 Amdt 4","sectionType":"part","heading":"AD/BEECH 95/26 Amdt 4","content":"## AD/BEECH 95/26 Amdt 4","sortOrder":1},{"sectionNumber":"Wing Bolt, Nut and Fitting","sectionType":"part","heading":"Wing Bolt, Nut and Fitting","content":"## Wing Bolt, Nut and Fitting","sortOrder":2},{"sectionNumber":"12/2022","sectionType":"part","heading":"12/2022","content":"## 12/2022","sortOrder":3}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"flash_summary":{"complexity_score":6,"scope_assessment":{"changed":true,"description":"Amendment 4 relaxed the compliance method for aircraft used in private operations by allowing purely visual inspection of exposed bolt areas in the wing attach recess and extending the re‑inspection interval from 5 to 10 years for those aircraft, in lieu of requiring the manufacturer’s magnetic particle inspection/maintenance instructions. For all other operational categories the inspection method and intervals remain as previously mandated (Background; Amendment 4)."},"complexity_factors":["Multiple inspection tiers: annual visual checks of recesses (Requirement 1) plus separate removal/inspection cycles for hardware (Requirement 2) and mandatory replacement by 15 years TIS (Requirement 3).","Different regimes by operation type: private operations allowed visual inspection and 10‑year re‑inspection intervals; other operations subject to tighter 5‑year intervals (Compliance section).","Dependency on external maintenance data: full inspections and replacements reference Beechcraft Shop Manual 95-590001-1C Rev C6 (Requirement 2 and 3).","Mandatory reporting of both NIL findings and defects to CASA creates administrative burden and ongoing recordkeeping (Compliance: Mandatory reporting).","Operational detail and special techniques: torque checks before removal, use of bright light/mirror/magnifier for hard-to-see areas, and recognition that threads encapsulated by nut are typically inhibited (Requirement 1 notes).","Interpretation risk over what counts as 'installation' (includes removal/reinstallation per Notes 3–4) and start/retirement dates tied to first installation and commencement date.","Practical access issues: drain‑hole blockage checks and partially inaccessible bolt areas affect inspection effectiveness and may increase maintenance time.","Amendment history and differing acceptable methods (visual vs manufacturer’s MPI) introduce compliance choice and potential enforcement discretion (Background; Amendment 4)."],"plain_english_summary":"This Airworthiness Directive requires owners/operators of all Textron Aviation (Beechcraft) 95 (Travelair) series aeroplanes to inspect wing attach fitting recesses and wing bolts, washers and nuts, remove and replace corroded or aged hardware, and report inspection results to CASA. It mandates annual visual checks of recesses and periodic removal/inspection or replacement of bolts (with retirement before 15 years TIS). Private-operation aircraft may use a visual inspection regime with longer re‑inspection intervals than other operations."},"kimi_summary":{"content_quality":"ok","complexity_score":4,"scope_assessment":{"changed":true,"description":"Originally issued in 1985 as a straightforward safety mandate for wing hardware inspection, this instrument has evolved through four amendments over 37 years. Amendment 4 significantly altered the scope by introducing a two-tier compliance regime: relaxed 10-year intervals for private operations versus maintained 5-year intervals for commercial operations. This represents a scope expansion from uniform safety standards to differentiated risk-based regulation, effectively creating two classes of compliance within the same AD framework."},"complexity_factors":["Multiple nested compliance timelines: 12 months (Requirement 1), 100 hours TIS or 12 months (Requirement 2 initial), 5 or 10 year intervals (Requirement 2 recurring), and 15 years TIS (Requirement 3)","Dual operational category tracks with different intervals (private vs. all other operations)","Cross-reference to external technical document (Beechcraft Shop Manual 95-590001-1C Revision C6, Section 4) for inspection procedures","Conditional triggering: Requirement 2 is triggered by findings in Requirement 1","Defined term \"time in service (TIS)\" used throughout with specific aviation meaning","Amendment history references (Amendments 1-4) creating layered context, though current requirements are stated","Mandatory reporting requirement applies to both nil findings and defects"],"plain_english_summary":"This AD applies to Beechcraft 95 Travelair aeroplanes and mandates recurring inspections and eventual replacement of wing attachment bolts, nuts, washers and fittings to prevent corrosion-related failure. Owners must perform annual visual checks and periodic removal/inspection of bolts (longer intervals for private use than commercial), replace hardware before 15 years’ time-in-service, and report all inspection results to CASA.\n\nIt matters because degraded wing attachment hardware can lead to catastrophic wing separation, so the directive enforces proactive checks and parts renewal."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-95-26-amdt-4-wing-bolt-nut-and-fitting","history":"/api/acts/ad-beech-95-26-amdt-4-wing-bolt-nut-and-fitting/history","analysis":"/api/acts/ad-beech-95-26-amdt-4-wing-bolt-nut-and-fitting/analysis","conflicts":"/api/acts/ad-beech-95-26-amdt-4-wing-bolt-nut-and-fitting/conflicts","importantCases":"/api/acts/ad-beech-95-26-amdt-4-wing-bolt-nut-and-fitting/important-cases","documents":"/api/acts/ad-beech-95-26-amdt-4-wing-bolt-nut-and-fitting/documents"}}