{"id":"F2006B03739","name":"AD/BEECH 23/26 - Flight Manoeuvre Restriction - Placard","slug":"ad-beech-23-26-flight-manoeuvre-restriction-placard","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43332,"registerId":"commonwealth-F2006B03739-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 23/26 - Flight Manoeuvre Restriction - Placard","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 19, 23 and 24 Series Aeroplanes\n\nAD/BEECH 23/26 Flight Manoeuvre Restriction \\- Placard 11/74\n\nApplicability: Beechcraft 23 S/Nos. M1, M2, M4 through M554. Beechcraft A23-19 S/Nos. MB-1 through MB-288. Beechcraft 19A S/Nos. MB-289 through MB-460.\n\nRequirement: Remove all placards pertaining to intentional spins and acrobatic flight and install a placard to be conspicuously located on the instrument panel as follows:\n\n“This aeroplane must be operated as a normal or utility category aeroplane. Intentional spins prohibited. No acrobatic manoeuvres approved except, chandelles, lazy eights, steep turns and stalls (except whip stalls)”.\n\nNote: This Directive does not apply to those aeroplanes incorporating Beech Spin Improvement Kit No. 23-4007-1 or 23-4007-5 or subsequent revisions. Fitment of these kits, or the approved equivalent will reinstate the acrobatic category for those aircraft originally approved in the acrobatic category, and intentional spinning in both utility and acrobatic categories.\n\nCompliance: Within 25 hours time in service after 15 November 1974.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive does not expand the types of regulatory powers used; it imposes a targeted operational limitation by placard and allows reinstatement of prior approval only upon fitment of approved kits (Requirement; Note). It alters permitted pilot behaviour for the enumerated serial numbers and obliges owners to update cockpit markings within the stated time (Applicability; Compliance)."},"complexity_factors":["Narrow applicability by specific model and serial numbers (Applicability) — limits universe of affected aircraft.","Single, fixed placard text required (Requirement) — leaves little discretion on wording or placement.","Exception mechanism via specific kits that reinstate acrobatic approval (Note) — creates conditional relief based on physical modification.","Short, clear compliance timeframe: 25 hours time in service after a set date (Compliance) — operational scheduling constraint for owners.","Operational effect is safety‑critical (restricts intentional spins and most aerobatics) but compliance action is a low‑technology physical change (placard swap)."],"plain_english_summary":"This directive orders owners/operators of specified Beechcraft 19/23/24 aeroplanes (by serial number) to remove existing spin/acrobatic placards and fit a single instrument‑panel placard that prohibits intentional spins and most acrobatic manoeuvres, except a short list. It must be done within 25 hours time in service. The rule changes what pilots may lawfully perform in the affected aircraft and requires owners to alter cockpit markings; approved spin‑improvement kits can restore previous acrobatic approval."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted airworthiness directive addressing a specific safety issue with specific aircraft models. It has not expanded beyond its original purpose of restricting flight manoeuvres through placarding for these Beechcraft models."},"complexity_factors":["Very short document (under 300 words)","Only 3 defined applicability categories (specific serial number ranges)","Single primary requirement with one clear exception","No cross-references to other legislation or regulations beyond the enabling authority (Civil Aviation Regulations 1998, Part 39)","Simple conditional logic: applies to X unless Y is fitted","Plain language requirement with quoted text for the placard"],"plain_english_summary":"This CASA Airworthiness Directive orders owners/operators of certain Beechcraft Model 19/23/24 aircraft to remove any intentional-spin/acrobatic placards and install a new instrument‑panel placard restricting operations to normal or utility category flying (prohibiting intentional spins and limiting manoeuvres). It does not apply if the aircraft has an approved Spin Improvement Kit (Beech kits 23‑4007‑1/‑5 or equivalent). Issued to address spin/acrobatic safety concerns; compliance was required within 25 flight hours after 15 Nov 1974."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-23-26-flight-manoeuvre-restriction-placard","history":"/api/acts/ad-beech-23-26-flight-manoeuvre-restriction-placard/history","analysis":"/api/acts/ad-beech-23-26-flight-manoeuvre-restriction-placard/analysis","conflicts":"/api/acts/ad-beech-23-26-flight-manoeuvre-restriction-placard/conflicts","importantCases":"/api/acts/ad-beech-23-26-flight-manoeuvre-restriction-placard/important-cases","documents":"/api/acts/ad-beech-23-26-flight-manoeuvre-restriction-placard/documents"}}