Publication: Magyar Közlöny
Issue: MK-2009-104 (Year: 2009, Number: 104)
Era: 2004-2010
Section: 
Paragraph Index: 1402

f) installation and utilization of a usage monitoring system. Note 1.— It is recognized that there may be instances in which a safe forced landing may not be possible due to environmental or other factors. Many States have already applied risk management and permitted variations to specific operations such as operations to helidecks where exposure to an engine failure is present without a safe forced landing. Permitting variations based on risk assessment is a normal part of the process of a State developing a code of performance. When operations without suitable areas for safe forced landings are being considered, all relevant factors should be evaluated. These may include the likelihood of the event, the possible consequences, any mitigating measures as well as the potential benefits and costs of the operation. The specific process for conducting this evaluation is to be decided by the State. In any case, appropriate consideration of a safe forced landing should be either implicit or explicit to a performance code’s construction. Accident history and other relevant safety data and analysis are crucial to the development of operational regulations in this area. The resulting requirements may take many forms, such as designation of approved operational areas, routes of flight and obstacle clearance requirements. Note 2.— If there are routes with access to suitable forced landing areas, these should be used for flights into and out of the congested area. Where no such routes exist, evaluation of the operation could include consideration of mitigating factors such as the reliability of the propulsion system in the short periods when flight over a suitable forced landing area is not possible. — — — — — — — — Attachment A Annex 6 — Operation of Aircraft ATT A-3 22/11/07 Example Purpose and Scope The following example provides quantitative specifications to illustrate a level of performance intended by the provisions of Section II, Chapter 3. A State may use this example as a basis for establishing its code of performance, but may introduce variations provided such variations meet the safety objectives of Section II, Chapter 3 and Attachment A. Abbreviations Specific to Helicopter Operations Abbreviations D Maximum dimension of helicopter DPBL Defined point before landing DPATO Defined point after take-off DR Distance travelled (helicopter) FATO Final approach and take-off area HFM Helicopter flight manual LDP Landing decision point LDAH Landing distance available (helicopter) LDRH Landing distance required (helicopter) R Rotor radius of helicopter RTODR Rejected take-off distance required (helicopter) TDP Take-off decision point TLOF Touchdown and lift-off area TODAH Take-off distance available (helicopter) TODRH Take-off distance required (helicopter) VTOSS Take-off safety speed

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