{"id":"F2006B08212","name":"AD/CESSNA 320/32 Amdt 1 - Main Landing Gear Wheel Bay Wing Rib and Wing Skin","slug":"ad-cessna-320-32-amdt-1-main-landing-gear-wheel-bay-wing-rib-and-wing-skin","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115438,"registerId":"commonwealth-F2006B08212-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 320/32 Amdt 1 - Main Landing Gear Wheel Bay Wing Rib and Wing Skin","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)  \nCessna 320 Series Aeroplanes\n\nAD/CESSNA 320/32\n\nAmdt 1\n\n  \n\nMain Landing Gear Wheel Bay Wing Rib and Wing Skin\n\n  \n10/95\n\nApplicability: Cessna 320 aircraft Serial Numbers 320-0001 to 320F0045.\n\nRequirement: Inspect the main landing gear side brace upper support attach bolts for correct torque.\n\nClean and do a close visual inspection of the main landing gear wheel well ribs in accordance with Cessna Service Letter (SL) ME76-2.\n\nVisually inspect the wing upper surface skin in the overwing baggage locker for cracking. Pay particular attention to the inboard side of the locker.\n\nCompliance: Initially inspect before 100 hours time in service after 20 July 1995 or before further flight after 14 September 1995, whichever occurs later.\n\nRe-inspect at intervals not to exceed 100 hours time in service.\n\nInstallation of Cessna Service Kit SK414-8E or repair to a scheme acceptable to the Authority cancels the Requirement of this Directive.\n\nThis Amendment is effective from 14 September 1995.\n\nBackground: There have been five reports of cracking of main landing gear wheel well ribs on Australian registered aircraft. In a number of cases cracks have also been reported in the wing upper surface skin in the baggage locker. Extensive cracking of the wing ribs could result in collapse of the main landing gear.\n\nThis Amendment adds repairs acceptable to the Authority as suitable terminating action.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment maintains the original scope of the Airworthiness Directive. The amendment adds an alternative terminating action (repairs acceptable to the Authority) to the existing requirement, but does not expand the applicability, add new inspection requirements, or broaden the regulatory reach beyond the original safety purpose of addressing cracking in the main landing gear wheel bay structure."},"complexity_factors":["Single, clearly defined applicability (specific aircraft serial number range)","Three straightforward inspection requirements with explicit reference to external technical document (Cessna Service Letter ME76-2)","Simple compliance timeline with binary condition (whichever occurs later)","Clear terminating action (installation of specific service kit or Authority-approved repair)","No defined terms section, no cross-references to other legislation beyond the enabling regulations (Civil Aviation Regulations 1998 Part 39)","Minimal conditional logic (only the 'whichever occurs later' timing clause and the terminating action clause)","Short document (approximately 200 words of substantive content)"],"plain_english_summary":"This safety order requires owners/operators of Cessna 320-series aeroplanes (serials 320-0001 through 320F0045) to perform recurring inspections for dangerous cracking and correct torque of main landing gear attachments and adjacent wing/baggage-skin structure, initially by the specified 1995 deadlines and then every 100 flight hours. Inspections may be discontinued if Cessna Service Kit SK414-8E is installed or an approved CASA repair is applied. It responds to discovered cracks that could lead to main-gear collapse."},"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":3,"scope_assessment":{"changed":true,"description":"This amendment adds that installation of Cessna Service Kit SK414-8E or a repair scheme acceptable to the Civil Aviation Safety Authority cancels the directive's requirements. Applicability to serial numbers and inspection requirements remain; effective date 14 September 1995."},"complexity_factors":["Narrow applicability: specific serial numbers (320-0001 to 320F0045) limits scope but requires fleet-level tracking.","Technical inspection tasks: torque check, cleaning and close visual inspection of ribs, and targeted skin inspection (requires maintenance competence and reference to SL ME76-2).","Recurring compliance timing: initial deadline tied to flight hours and calendar date, plus mandatory 100-hour re-inspection intervals (operational scheduling impact).","Reference to external documents: depends on Cessna Service Letter ME76-2 and Service Kit SK414-8E for procedures and terminating action.","Regulatory discretion: termination permitted only for repairs 'acceptable to the Authority' — requires regulatory approval and may create administrative delay.","Safety risk trade-off: directive addresses risk of rib cracking and potential gear collapse, so enforcement interacts directly with airworthiness and service costs."],"plain_english_summary":"Mandates owners/operators of Cessna 320 airframes (serials 320-0001 to 320F0045) to check main landing gear side‑brace upper support attach‑bolt torque, clean and closely inspect wheel‑well ribs per Cessna Service Letter ME76‑2, and visually inspect the overwing baggage locker skin for cracking. Initial deadlines and recurring 100‑hour inspection intervals apply; installing Cessna Service Kit SK414‑8E or a repair scheme accepted by the Civil Aviation Safety Authority cancels the directive. Owners pay inspection/repair costs; the Authority decides which repairs terminate the requirement."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-320-32-amdt-1-main-landing-gear-wheel-bay-wing-rib-and-wing-skin","history":"/api/acts/ad-cessna-320-32-amdt-1-main-landing-gear-wheel-bay-wing-rib-and-wing-skin/history","analysis":"/api/acts/ad-cessna-320-32-amdt-1-main-landing-gear-wheel-bay-wing-rib-and-wing-skin/analysis","conflicts":"/api/acts/ad-cessna-320-32-amdt-1-main-landing-gear-wheel-bay-wing-rib-and-wing-skin/conflicts","importantCases":"/api/acts/ad-cessna-320-32-amdt-1-main-landing-gear-wheel-bay-wing-rib-and-wing-skin/important-cases","documents":"/api/acts/ad-cessna-320-32-amdt-1-main-landing-gear-wheel-bay-wing-rib-and-wing-skin/documents"}}