{"id":"F2013L00420","name":"CASA 39/13 - Directions under subregulation 235(2) relating to landing weight and landing distance required","slug":"casa-39-13-directions-under-subregulation-235-2-relating-to-landing-weight-and-landing-distance-requ","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":172708,"registerId":"commonwealth-F2013L00420-current","compilationNumber":null,"startDate":"2026-04-04","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"CASA 39/13 - Directions under subregulation 235(2) relating to landing weight and landing distance required","content":"Instrument number CASA 39/13\n\nI, gerard john campbell, Acting 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  \nActing Executive Manager  \nOperations Division\n\n5 March 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instrument:\n\n(a) commences on the day of registration; and\n\n(b) stops having effect, as if it had been repealed by another instrument, at the earlier of:\n\n(i) the coming into effect of the next amendment of subsection 11 of Civil Aviation Order 20.7.1B; or\n\n(ii) 31 August 2013.\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":1908},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument maintains its original narrow scope: a temporary, operator-specific direction permitting alternative landing distance calculations for Qantas Airbus operations. It does not expand beyond this specific purpose."},"complexity_factors":["Only 2 defined terms (EFB and IFLD)","Single substantive operational requirement","Limited to one specific operator (Qantas Airways)","Temporary instrument with automatic expiry mechanism","No nested conditional logic or exceptions beyond the emergency exemption"],"plain_english_summary":"This temporary safety direction allowed Qantas pilots flying Airbus aircraft to use an in‑flight landing distance (IFLD) method—sourced from the manufacturer via an approved electronic flight bag or the Operations Manual—to calculate required landing runway. It required a 15% safety margin on IFLD (unless in an emergency), applied only to Qantas Airways Limited pilots using those Airbus systems, and expired on 31 August 2013."}},"importantCases":[],"_links":{"self":"/api/acts/casa-39-13-directions-under-subregulation-235-2-relating-to-landing-weight-and-landing-distance-requ","history":"/api/acts/casa-39-13-directions-under-subregulation-235-2-relating-to-landing-weight-and-landing-distance-requ/history","analysis":"/api/acts/casa-39-13-directions-under-subregulation-235-2-relating-to-landing-weight-and-landing-distance-requ/analysis","conflicts":"/api/acts/casa-39-13-directions-under-subregulation-235-2-relating-to-landing-weight-and-landing-distance-requ/conflicts","importantCases":"/api/acts/casa-39-13-directions-under-subregulation-235-2-relating-to-landing-weight-and-landing-distance-requ/important-cases","documents":"/api/acts/casa-39-13-directions-under-subregulation-235-2-relating-to-landing-weight-and-landing-distance-requ/documents"}}