{"id":"F2012L01829","name":"CASA 270/12 - Revocation of instrument CASA 285/11 - instructions for RNAV (GNSS) approaches by Virgin Australia International B777 aircraft","slug":"casa-270-12-revocation-of-instrument-casa-285-11-instructions-for-rnav-gnss-approaches-by-virgin-aus","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":89795,"registerId":"commonwealth-F2012L01829-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA 270/12 - Revocation of instrument CASA 285/11 - instructions for RNAV (GNSS) approaches by Virgin Australia International B777 aircraft","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-description: Revocation of instrument CASA 285/11 — instructions for RNAV (GNSS) approaches by Virgin Australia International B777 aircraft\nmeta-generator: Aspose.Words for .NET 20.2\ntitle: CASA 270/12\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nInstrument number CASA 270/12\n\nI, PETER BEILBY CROMARTY, Acting Executive Manager, Operations Division, a delegate of CASA, make this instrument under regulation 179A of the Civil Aviation Regulations 1988.\n\n[Signed P. B. Cromarty]\n\nPeter Cromarty  Acting Executive Manager  Operations Division\n\n23 August 2012\n\nRevocation of instrument CASA 285/11 — instructions for RNAV (GNSS) approaches by Virgin Australia International B777 aircraft\n\n1 Commencement\n\n This instrument commences on the day after registration.\n\n2 Revocation\n\n Instrument CASA 285/11 is revoked.\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1488},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument performs exactly the single administrative function described in its title—revoking a specific previous approval. There is no expansion beyond the original purpose of cancelling CASA 285/11."},"complexity_factors":["Single operative provision (simple revocation)","No defined terms or interpretation section","No conditional logic, exceptions, or procedural requirements","Only one cross-reference (to the revoked instrument)","Extremely short (2 clauses total)"],"plain_english_summary":"This instrument **cancels a previous aviation approval** that allowed Virgin Australia International to use specific GPS-based navigation procedures when flying Boeing 777 aircraft.\n\n**What it does:**\n*   Revokes (cancels) Instrument CASA 285/11, which previously authorised Virgin Australia International to conduct Area Navigation (Global Navigation Satellite System) approaches—essentially precision landing approaches using GPS signals—using their B777 fleet\n*   Takes effect the day after the instrument was officially registered\n\n**Who it affects:**\n*   Virgin Australia International Airlines\n*   Flight crew operating Boeing 777 aircraft under Virgin Australia's approval\n\n**Why it matters:**\nWithout the revoked instrument, the specific operating instructions and permissions it contained are no longer legally valid. Virgin Australia would need to rely on different regulatory approvals or updated procedures to conduct these types of instrument approaches."}},"importantCases":[],"_links":{"self":"/api/acts/casa-270-12-revocation-of-instrument-casa-285-11-instructions-for-rnav-gnss-approaches-by-virgin-aus","history":"/api/acts/casa-270-12-revocation-of-instrument-casa-285-11-instructions-for-rnav-gnss-approaches-by-virgin-aus/history","analysis":"/api/acts/casa-270-12-revocation-of-instrument-casa-285-11-instructions-for-rnav-gnss-approaches-by-virgin-aus/analysis","conflicts":"/api/acts/casa-270-12-revocation-of-instrument-casa-285-11-instructions-for-rnav-gnss-approaches-by-virgin-aus/conflicts","importantCases":"/api/acts/casa-270-12-revocation-of-instrument-casa-285-11-instructions-for-rnav-gnss-approaches-by-virgin-aus/important-cases","documents":"/api/acts/casa-270-12-revocation-of-instrument-casa-285-11-instructions-for-rnav-gnss-approaches-by-virgin-aus/documents"}}