{"id":"F2006B04203","name":"AD/BEECH 90/101 - External Door Operating Instructions","slug":"ad-beech-90-101-external-door-operating-instructions","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43959,"registerId":"commonwealth-F2006B04203-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)\n\n![](image.001.png)  \nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\nBeechcraft 90 and 65-90 (King Air) Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/BEECH 90/101 External Door Operating ","sectionType":"part","heading":"AD/BEECH 90/101 External Door Operating Instructions 4/2003","content":"# AD/BEECH 90/101 External Door Operating Instructions 4/2003\n\nApplicability: Model 65-90, 65-A90, B90, C90, and C90A aircraft, serial numbers LJ-1 through LJ- 1530.\n\nModel E90 aircraft, serial numbers LW-1 through LW-347. Model F90 aircraft, serial numbers LA-2 through LA-236.\n\nRequirement: Modify the exterior door operating procedures by incorporating the applicable kit in accordance with the applicable kit instructions as specified in the Accomplishment Instructions section in Raytheon Mandatory Service Bulletin SB 52-3096 Revision 1, Revised: June 2002.\n\nNote: FAA AD 2003-02-03 Amdt 39-13019 refers.\n\nCompliance: Within 200 hours’ time in service or 12 calendar months after 17 April 2003, whichever occurs first; unless already accomplished.\n\nThis Airworthiness Directive becomes effective on 17 April 2003.\n\nBackground: Following an accident investigation, the National Transportation Safety Board issued a recommendation to the FAA for improved exterior operating instruction placards on the exterior of the Model 1900 airstair door. Raytheon Aircraft developed door operating instruction placards of improved visibility and legibility for the Model 1900 and other affected turbo propeller aircraft. The actions specified by this Directive are intended to assure that the airstair door or emergency exits can be opened during an emergency situation.\n\n![](image.002.jpeg)  \n\nDavid Alan Villiers\n\nDelegate of the Civil Aviation Safety Authority 28 February 2003\n\n![](image.001.png)","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"This AD stays within the original safety-focused purpose described in the Background: to improve exterior door operating instructions after an NTSB recommendation and FAA action. It does not broaden the subject matter beyond mandating the Raytheon placard/kit installation for the listed aircraft; there is no expansion into unrelated systems, operations, or regulatory obligations."},"complexity_factors":["Short, single-subject AD focused on a single corrective action (placard/kit installation).","Applicability limited to specific models and serial-number ranges (clear but numerically specific).","Cross-references to one manufacturer service bulletin (Raytheon SB 52-3096 Revision 1) and one FAA AD (FAA AD 2003-02-03).","Single compliance condition with two alternative triggers (200 hours’ time in service OR 12 calendar months).","No nested exceptions, few defined terms, and no discretionary or conditional approvals specified."],"plain_english_summary":"**What this instrument does (mechanically)**\n\n- It requires operators of certain Beechcraft King Air/Model 90 family aeroplanes to update the exterior door operating instructions (placards) by installing a kit produced by Raytheon, and to do so following the kit instructions in Raytheon Mandatory Service Bulletin SB 52-3096 Revision 1. (Requirement)\n- It applies only to specific serial-number ranges of Model 65-90, 65-A90, B90, C90, C90A, E90 and F90 aircraft. (Applicability)\n- The work must be done within 200 hours’ time in service or 12 calendar months after 17 April 2003, whichever comes first, unless already done. (Compliance)\n\n**Who is affected**\n\n- Owners and operators of the listed Beechcraft Model 90-series aircraft with the serial numbers specified in the Applicability section must carry out (or arrange) the modification. (Applicability, Requirement)\n- Maintenance organisations or mechanics who perform the installation must follow the Raytheon service bulletin instructions when fitting the kit. (Requirement)\n\n**Why it matters (claimed purpose and the source for that claim)**\n\n- The Background section says the requirement follows an NTSB recommendation after an accident investigation and an FAA airworthiness directive. Raytheon made improved, more visible and legible door instruction placards for the Model 1900 and other turboprops; CASA’s AD adopts that change for the specified Model 90 aircraft to help ensure airstair doors or emergency exits can be opened in an emergency. (Background; Requirement)\n\n**Practical effects, costs and incentives**\n\n- Who pays: aircraft owners/operators pay for the kit, parts and installation labour. (Requirement)\n- Who decides: the CASA delegate issued the AD under the Civil Aviation Regulations power; operators must comply by the stated deadline. (Header; Compliance)\n- Behaviour change required: replace or fit exterior door operating placards per the Raytheon kit and instructions, and maintain those placards thereafter. (Requirement)\n- Timing and operational impact: the work must occur within 200 flight hours or 12 months, so operators must schedule maintenance and accept the short downtime and labour cost associated with installation. (Compliance)\n\n**Trade-offs, implementation risk and compliance burden**\n\n- Implementation risk is low technically: the AD directs use of a manufacturer kit and procedure (Raytheon SB 52-3096 Revision 1), so standard parts and approved instructions are relied on. (Requirement)\n- Main burden is administrative and financial on many operators: small, one-off parts and labour costs plus scheduling/grounding time. (Requirement; Compliance)\n- Availability risk: if kits are supplied by Raytheon only, operators depend on that supply; the AD does not itself create alternative sources. (Requirement; Background)\n\n**Effects on private enterprise and markets**\n\n- Competition and ownership: the AD imposes a safety requirement on specific aircraft types but does not alter ownership, market structure, ticketing or routes directly. Operators retain freedom to contract for the work. (Applicability; Requirement)\n- Concentrated benefits: Raytheon (the manufacturer) is identified as the developer of the improved placards and therefore may receive kit orders from affected operators. The AD therefore creates a concentrated demand for those kits. (Background; Requirement)\n- Diffuse costs: the compliance cost is spread across many operators owning affected aircraft (small per-operator cost). (Requirement; Compliance)\n\n**Enforcement and cross-references**\n\n- The AD is issued under CAR 1998 subregulation 39.1(1) and refers to FAA AD 2003-02-03. Compliance is mandatory under the Australian airworthiness framework and tied to the explicit timeframe given. (Header; Compliance; Note)\n\n**Net mechanical summary**\n\n- Do this: install the manufacturer’s door-placard kit, following Raytheon SB 52-3096 Revision 1.\n- Who does it: owners/operators (or contracted maintenance providers).\n- When: within 200 flight hours or 12 months after 17 April 2003.\n- Why (as stated): to improve visibility/legibility of exterior door operating instructions so doors/exits can be opened in emergencies. (Background)"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow scope. It addresses a specific safety issue (door operating instructions) for specific aircraft models, exactly as intended when issued following the NTSB recommendation. There is no evidence of scope creep or expansion beyond the original safety purpose."},"complexity_factors":["Single, specific requirement with clear reference to manufacturer service bulletin","Limited applicability section with explicit model and serial number ranges","Straightforward compliance deadline (200 hours OR 12 months, whichever first)","No nested exceptions or conditional logic beyond the 'unless already accomplished' exemption","Minimal cross-referencing (only one FAA AD mentioned in a note, not incorporated by complex reference)","Short document (approximately 300 words) with no interpretation section or defined terms"],"plain_english_summary":"This CASA safety order mandates that owners/operators of certain Beechcraft King Air 90‑series aircraft install improved exterior door operating instructions per Raytheon SB 52‑3096 Rev 1. Prompted by an NTSB crash finding that existing labels were hard to read, the change ensures passengers and crew can open the airstair/emergency exits in an evacuation. Affected serial‑numbered aircraft must comply within 200 flight hours or 12 months of 17 April 2003 — it’s mandatory."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-90-101-external-door-operating-instructions","history":"/api/acts/ad-beech-90-101-external-door-operating-instructions/history","analysis":"/api/acts/ad-beech-90-101-external-door-operating-instructions/analysis","conflicts":"/api/acts/ad-beech-90-101-external-door-operating-instructions/conflicts","importantCases":"/api/acts/ad-beech-90-101-external-door-operating-instructions/important-cases","documents":"/api/acts/ad-beech-90-101-external-door-operating-instructions/documents"}}