{"id":"F2006B07135","name":"AD/STRIKEMASTER/3 - Flight Limitations","slug":"ad-strikemaster-3-flight-limitations","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48960,"registerId":"commonwealth-F2006B07135-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/STRIKEMASTER/3 - Flight Limitations","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)  \nBAe (BAC 167) Strikemaster Series Aeroplanes\n\nAD/STRIKEMASTER/3 Flight Limitations 12/96 DM\n\nApplicability: BAe BAC 167 Strikemaster up to Mk90 which have exceeded 70 Fatigue Index (F.I.) Requirement: 1. Maximum positive ‘g’ as detailed in Pilot’s Notes Part 2 Chapter 1 paragraph 5,\n\nand in the BAC Release Document, Section 6 (Manoeuvre Limitations) is\n\nrestricted to 4.0g.\n\n2. Applicable aircraft may only fly for an additional 2 F.I. after the effective date of this Directive.\n\nThe limitations of this Directive may be lifted after compliance with inspections and/or modifications approved by British Aerospace.\n\nNote: UK CAA MPD 1995-101 refers.\n\nCompliance: Prior to further flight after 02 October 1996.\n\nBackground: British Aerospace have issued CFSI/Stikemaster/19 which advises operators of cases of cracks emanating from the bolt holes located in the inboard area of the port and starboard mainplane lower spar boom. This Directive applies limitations until appropriate approved action is taken to rectify, or control the problem.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The directive constrains normal operations for affected Strikemaster aircraft by imposing a 4.0g manoeuvre cap and limiting further fatigue accrual to two F.I. units until approved inspections or modifications are done. In effect it narrows the operational envelope and permits only limited additional flying pending corrective action, shifting decision and remediation costs to operators while relying on British Aerospace approval to restore full capability (Applicability; Requirement 1–2; lifting statement; Compliance)."},"complexity_factors":["Narrow applicability requiring operators to identify aircraft exceeding 70 Fatigue Index (Applicability).","Numeric operational constraints (4.0g limit and +2 F.I. allowance) that require monitoring and flight‑planning adjustments (Requirement 1–2).","Immediate compliance prior to further flight creates potential operational disruption and rapid administrative action (Compliance).","Dependence on inspections or modifications approved by British Aerospace to lift limits introduces an external approval dependency and potential cost (lifting statement).","Safety issue (cracks at mainplane lower spar boom) is identified but the AD delegates technical remedy to approved inspections/mods, requiring technical assessment and possible parts/work (Background; lifting statement).","Cross‑references to pilot’s notes, BAC Release Document, and UK CAA MPD increase operational paperwork and interpretation needs (Requirement; Note)."],"plain_english_summary":"This airworthiness directive imposes immediate flight limits on BAe BAC 167 Strikemaster (up to Mk90) aircraft that have exceeded 70 Fatigue Index: maximum positive g is restricted to 4.0g and only two additional F.I. units of flying are allowed (Requirements 1–2). Compliance is required before the next flight. The limits remain until operators complete inspections or modifications approved by British Aerospace; operators must avoid higher‑g manoeuvres and shoulder the cost and work to obtain approved corrective action (Requirement; Compliance; lifting statement)."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a targeted safety directive addressing a specific airworthiness issue (wing spar cracks) in a specific aircraft type. It has not expanded beyond its original purpose of imposing temporary flight limitations pending rectification."},"complexity_factors":["Very short document (under 300 words)","Only 2 substantive requirements","Single defined term (Fatigue Index/F.I.) explained in context","No cross-references to other legislation beyond a single note referencing a UK document","Simple conditional structure: if aircraft meets applicability criteria, then restrictions apply","Single compliance date with no exceptions or alternative compliance methods"],"plain_english_summary":"This Airworthiness Directive temporarily limits operation of BAe Strikemaster (up to Mk90) aircraft with over 70 Fatigue Index points: pilots must not exceed 4.0g and affected airframes may accrue only two more FI points before grounding or repair. Issued after cracks at main wing spar bolt holes were found, it lets owners keep older planes flying briefly but gently until approved inspection or repair by British Aerospace; compliance was required before flying after 2 Oct 1996."}},"importantCases":[],"_links":{"self":"/api/acts/ad-strikemaster-3-flight-limitations","history":"/api/acts/ad-strikemaster-3-flight-limitations/history","analysis":"/api/acts/ad-strikemaster-3-flight-limitations/analysis","conflicts":"/api/acts/ad-strikemaster-3-flight-limitations/conflicts","importantCases":"/api/acts/ad-strikemaster-3-flight-limitations/important-cases","documents":"/api/acts/ad-strikemaster-3-flight-limitations/documents"}}