{"id":"F2006B04258","name":"AD/BEECH 90/72 - Pilot Seats - Reinforcement","slug":"ad-beech-90-72-pilot-seats-reinforcement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44054,"registerId":"commonwealth-F2006B04258-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 90/72 - Pilot Seats - Reinforcement","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 90 and 65-90 (King Air) Series Aeroplanes\n\nAD/BEECH 90/72 Pilot Seats \\- Reinforcement 1/84\n\nApplicability: All models 65/90 with A.M.I. seats model 716-1, \\-2, \\-11, \\-12, \\-21 and \\-22 and model\n\n865-1 to \\-9 and \\-11.\n\nRequirement: Reinforce pilot seat frame assembly P/N 865J10005-1 by installation of A.M.I. Industries Inc., seat frame brace kit P/N 865K90000-1 I.A.W. A.M.I. Industries Inc., service bulletin No. 25-10-865-01, dated 31 January, 1983.\n\nNote: FAA AD 83-21-06 refers.\n\nCompliance: Unless previously accomplished before 30 April 1984.\n\nBackground: A case occurred where failure of the pilots seats during a survivable emergency landing contributed to occupant injury. Subsequent T.S.O. tests verified failure of the seat frame at loads below the 9g. forward requirement.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD’s scope is narrowly targeted to specific seat models and a specific seat-frame part number and prescribes a single remedial action (installation of the named brace kit per the named service bulletin). The instrument itself does not indicate any change from that targeted scope; it imposes the mandated modification for all listed aircraft unless the work had already been completed before the stated compliance date (Applicability; Requirement; Compliance)."},"complexity_factors":["Narrow technical scope: applies only to specific Beechcraft 65/90 series aircraft with listed A.M.I. seat models (Applicability).","Single prescriptive corrective action: requires installation of a single, identified parts kit and adherence to a named service bulletin (Requirement).","Clear compliance deadline with a single exception (already accomplished before 30 April 1984) (Compliance).","Technical background relies on T.S.O. test results and an incident report but does not supply technical details or cost data (Background).","Cross-reference to an external FAA AD and a manufacturer service bulletin increases reliance on external documents for implementation details (Note; Requirement)."],"plain_english_summary":"This AD mandates reinforcing the pilot seat frame on specified Beechcraft 65/90 series aeroplanes fitted with certain A.M.I. seats by installing the manufacturer’s brace kit per A.M.I. Service Bulletin; operators/owners must comply unless already done before 30 April 1984.\n\nIt was issued after seats failed in a survivable emergency landing and TSO tests showed frame failure below the 9g requirement. Compliance cost and installer/inspection details aren’t specified in the directive."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, single-issue safety directive focused specifically on pilot seat reinforcement for defined aircraft models. It has not expanded beyond its original technical safety purpose."},"complexity_factors":["Very short document (under 200 words)","Only 2 defined terms (P/N for part number, T.S.O. for Technical Standard Order)","Single, unambiguous requirement with clear part numbers and reference document","No conditional logic or nested exceptions","Straightforward applicability test (specific aircraft models and seat types)"],"plain_english_summary":"**What this is:** This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) that requires specific repairs or modifications to aircraft.\n\n**What it does:** It orders owners and operators of certain Beechcraft King Air aeroplanes (models 65/90 series) to **reinforce the pilot seats** to prevent them from collapsing during emergency landings.\n\n**Who it affects:**\n- **Aircraft owners/operators** of Beechcraft 65/90 series planes fitted with specific A.M.I. seat models (716-1, -2, -11, -12, -21, -22 and 865-1 to -9, -11)\n- **Maintenance engineers** who must carry out the work\n\n**What must be done:** Install a specific reinforcement kit (part number 865K90000-1) on the pilot seat frame, following the manufacturer's service bulletin instructions.\n\n**Why it matters:** A pilot seat failed during a survivable crash landing, causing injuries. Testing showed these seats couldn't withstand the required 9g forward force (9 times the force of gravity in a forward impact). This fix prevents seat collapse and protects pilots in accidents.\n\n**Deadline:** The work had to be completed by 30 April 1984 (unless already done)."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-90-72-pilot-seats-reinforcement","history":"/api/acts/ad-beech-90-72-pilot-seats-reinforcement/history","analysis":"/api/acts/ad-beech-90-72-pilot-seats-reinforcement/analysis","conflicts":"/api/acts/ad-beech-90-72-pilot-seats-reinforcement/conflicts","importantCases":"/api/acts/ad-beech-90-72-pilot-seats-reinforcement/important-cases","documents":"/api/acts/ad-beech-90-72-pilot-seats-reinforcement/documents"}}