{"id":"F2013L01629","name":"CASA 181/13 - Directions under subregulation 235(2) relating to landing weight and landing distance required","slug":"casa-181-13-directions-under-subregulation-235-2-relating-to-landing-weight-and-landing-distance-req","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":91437,"registerId":"commonwealth-F2013L01629-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA 181/13 - Directions under subregulation 235(2) relating to landing weight and landing distance required","content":"Instrument number CASA 181/13\n\nI, gerard john campbell, Executive Manager, Operations Division, a delegate of CASA, make this instrument under subregulation 235 (2) of the Civil Aviation Regulations 1988.\n\n\\[Signed G.J. Campbell\\]\n\nGerard J. Campbell  \nExecutive Manager  \nOperations Division\n\n20 August 2013\n\nDirections under subregulation 235 (2) relating to landing weight and landing distance required\n\n1 Duration\n\nThis instrument:\n\n(a) commences on the day of registration; and\n\n(b) expires, as if it had been repealed by another instrument, at the earlier of:\n\n(i) the coming into effect of the next amendment of subsection 11 of Civil Aviation Order 20.7.1B; or\n\n(ii) 31 July 2014.\n\n2 Application\n\nThis instrument applies to Qantas Airways Limited, Aviation Reference Number 216147 (the operator), and pilots employed by the operator, when using the Airbus Operational Landing Distance concept, now referred to by Airbus in the Flight Crew Operations Manual as the in-flight landing distance.\n\n3 Directions\n\nI issue the directions in Schedule 1.\n\nSchedule 1 Directions\n\n1 Definitions\n\n(1) In this Schedule:\n\n> EFB means electronic flight bag.\n\n> IFLD means the in-flight landing distance which is the actual landing distance required for the actual conditions, aeroplane configuration, runway conditions, and aeroplane system integrity using the deceleration devices planned to be used for the landing. The actual landing distance required is obtained by reference to the IFLD data supplied by the manufacturer either through an approved EFB or the aircraft’s Operations Manual.\n\n(2) When in-flight, except in an emergency, pilots employed by the operator must use the IFLD x 1.15.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1768},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This instrument maintains a narrow, specific scope throughout. It is a temporary operational direction applying only to Qantas Airways regarding Airbus landing distance calculations, and does not expand beyond this original purpose."},"complexity_factors":["Technical aviation terminology requiring industry knowledge (IFLD, EFB, deceleration devices)","Conditional application limited to specific operator (Qantas) and specific aircraft manufacturer system","Mathematical safety calculation requirement (multiplier of 1.15)","Sunset clause with dual expiry triggers referencing external Civil Aviation Order 20.7.1B"],"plain_english_summary":"This allows Qantas Airways pilots (ARN 216147) operating Airbus aircraft to use an in‑flight landing distance (IFLD) method—calculating landing distance from real‑time conditions via an Electronic Flight Bag or Operations Manual—rather than pre‑flight worst‑case figures. The computed distance must be multiplied by 1.15 for a safety margin. It aimed to improve operational flexibility and efficiency while preserving safety and was a temporary measure that expired in July 2014."}},"importantCases":[],"_links":{"self":"/api/acts/casa-181-13-directions-under-subregulation-235-2-relating-to-landing-weight-and-landing-distance-req","history":"/api/acts/casa-181-13-directions-under-subregulation-235-2-relating-to-landing-weight-and-landing-distance-req/history","analysis":"/api/acts/casa-181-13-directions-under-subregulation-235-2-relating-to-landing-weight-and-landing-distance-req/analysis","conflicts":"/api/acts/casa-181-13-directions-under-subregulation-235-2-relating-to-landing-weight-and-landing-distance-req/conflicts","importantCases":"/api/acts/casa-181-13-directions-under-subregulation-235-2-relating-to-landing-weight-and-landing-distance-req/important-cases","documents":"/api/acts/casa-181-13-directions-under-subregulation-235-2-relating-to-landing-weight-and-landing-distance-req/documents"}}