{"id":"F2006B10908","name":"AD/JETSTREAM/4 - MLG Door Operating Rod","slug":"ad-jetstream-4-mlg-door-operating-rod","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":56446,"registerId":"commonwealth-F2006B10908-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/JETSTREAM/4 - MLG Door Operating Rod","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  British Aerospace BAe 3100 (Jetstream) Series Aeroplanes\n\n \n\nAD/JETSTREAM/4 MLG Door Operating Rod 1/87\n\nCANCELLED.\n\n \n\nBackground: Superseded by AD/JETSTREAM/16.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is a specific, narrow administrative record concerning a single cancelled airworthiness directive. It has not expanded beyond its original purpose of documenting the status of AD/JETSTREAM/4."},"complexity_factors":["Document is only 8 lines of substantive content","No defined terms section","No conditional logic or cross-references to other legislation","Single straightforward status declaration (CANCELLED)","No operative provisions — purely archival/historical record"],"plain_english_summary":"This is a cancelled airworthiness directive (AD) for British Aerospace BAe 3100 Jetstream aircraft. An airworthiness directive is an official safety notice issued by the Civil Aviation Safety Authority (CASA) that requires aircraft owners or operators to perform specific inspections, repairs, or modifications to address unsafe conditions.\n\n**What this document says:**\n- **AD/JETSTREAM/4** was a directive concerning the **MLG (Main Landing Gear) Door Operating Rod** — a mechanical component that controls the doors covering the main wheels when they retract into or extend from the aircraft fuselage.\n- **Status: CANCELLED** — This directive is no longer in force.\n- **Reason:** It was replaced by a newer directive, **AD/JETSTREAM/16**, which presumably covers the same safety issue more comprehensively or with updated requirements.\n\n**Who it affects:**\n- Owners and operators of British Aerospace BAe 3100 (Jetstream) series aircraft.\n\n**Why it matters:**\n- Even though cancelled, this document remains part of the official safety record. It shows the regulatory history of safety requirements for these aircraft. Maintenance personnel must track which directives are current versus superseded to ensure compliance with active safety standards."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":true,"description":"The active scope of AD/JETSTREAM/4 has been removed: the directive is cancelled. Regulatory responsibility for any applicable mandatory actions has been transferred to AD/JETSTREAM/16, as stated by the schedule entry. The schedule entry does not itself set the substitute technical or compliance scope — that now resides in the successor AD."},"complexity_factors":["Very short instrument: only records cancellation and supersession, no substantive technical requirements included.","Cross-reference dependency: effectiveness and obligations depend entirely on the successor AD (AD/JETSTREAM/16).","Regulatory context present (Civil Aviation Regulations 1998, Part 39) requires understanding of how ADs operate in the broader regulatory framework.","Potential transitional ambiguity for operators until they consult the successor AD for details and effective dates."],"plain_english_summary":"AD/JETSTREAM/4 (MLG Door Operating Rod) for British Aerospace BAe 3100 (Jetstream) series aeroplanes is cancelled and expressly superseded by AD/JETSTREAM/16. \n\nOwners/operators and maintenance organisations must now follow the successor AD for any ongoing mandatory actions; CASA recorded the change under the airworthiness directive schedule, so consult AD/JETSTREAM/16 for current obligations and costs."}},"importantCases":[],"_links":{"self":"/api/acts/ad-jetstream-4-mlg-door-operating-rod","history":"/api/acts/ad-jetstream-4-mlg-door-operating-rod/history","analysis":"/api/acts/ad-jetstream-4-mlg-door-operating-rod/analysis","conflicts":"/api/acts/ad-jetstream-4-mlg-door-operating-rod/conflicts","importantCases":"/api/acts/ad-jetstream-4-mlg-door-operating-rod/important-cases","documents":"/api/acts/ad-jetstream-4-mlg-door-operating-rod/documents"}}