[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-399994-105":59,"doc-detail-399994-en":131},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":124,"head_meta":126,"extra_data":128,"updated_unix":130},105,"en","section-3-emergency-procedures-power-failure","SECTION 3 - EMERGENCY PROCEDURES - Power Failure","","Section 3, Emergency Procedures, provides step-by-step guidance for handling rotorcraft emergencies, focusing on power failure scenarios. It defines decision factors for landing (“land immediately” vs “as soon as practical”) and explains typical indications of engine versus drive system failures. The procedures cover autorotation entry, collective and airspeed adjustments across altitude bands, glide configuration settings, minimum descent preparation, and the optional air restart sequence. Additional coverage includes emergency water landings, tail rotor thrust loss, and related cautions.",{"@graph":69,"@context":123},[70,84,106],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":35,"@type":76,"position":81},"https://docshare.wps.com/document/healthcare/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/section-3-emergency-procedures-power-failure/399994/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/section-3-emergency-procedures-power-failure/399994.png","ImageObject",300,407,{"name":92,"@type":93},"McQueen","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-11-02","2026-09-27",true,{"@type":102,"interactionType":103,"userInteractionCount":105},"InteractionCounter",{"@type":104},"ViewAction",11,{"@type":107,"mainEntity":108},"FAQPage",[109,115,119],{"name":110,"@type":111,"acceptedAnswer":112},"What are the typical indications of a power failure, and how can it be distinguished between engine and drive system failures?","Question",{"text":113,"@type":114},"Power failure is usually indicated by the low RPM horn. Engine failure may show as noise level change, nose yaw left, oil pressure light, or decreasing engine RPM; drive system failure may show unusual noise or vibration, yaw right or left, and decreasing rotor RPM while engine RPM increases.","Answer",{"name":116,"@type":111,"acceptedAnswer":117},"What immediate actions are recommended during a power failure?",{"text":118,"@type":114},"Immediately lower collective to enter autorotation and reduce airspeed to power-off Vne or below.",{"name":120,"@type":111,"acceptedAnswer":121},"How should the landing be managed during power failure at different altitudes (above 500 ft AGL, 8–500 ft AGL, and below 8 ft AGL)?",{"text":122,"@type":114},"Above 500 ft AGL: lower collective to maintain rotor RPM, establish a steady glide, adjust collective to keep RPM within the specified range, and aim for into-wind landing, with an optional restart attempt if time allows. Between 8 and 500 ft AGL: lower collective to maintain rotor RPM, keep RPM in the specified range, maintain airspeed until ground is approached, then flare and level the ship with forward cyclic at about 8 ft AGL. Below 8 ft AGL: use right pedal as needed to prevent yawing, allow the rotorcraft to settle, then raise collective just before touchdown to cushion landing.","https://schema.org",{"og:url":83,"og:type":125,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":127,"canonical":83},"index,follow",{"doc_id":129,"site_id":62},399994,1790578567,{"code":4,"msg":5,"data":132},{"doc_id":129,"user_id":133,"nickname":92,"user_avatar":134,"doc_module":4,"category_id":34,"category_name":35,"doc_title":65,"doc_description":67,"doc_content":135,"file_id":136,"file_url":137,"file_type":138,"file_size":139,"view_count":105,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":140,"language":141,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":142,"faqs":143,"seo_title":144,"seo_description":67,"update_tm":145,"read_time":146,"preview_page_count":4},5909890329169,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","SECTION 3  \nEMERGENCY PROCEDURES  \nCONTENTS  \nPage  \nDefinitions .................................. 3-1  \nPower Failure – General ......................... 3-1  \nPower Failure Above 500 Feet AGL ................ 3-2  \nPower Failure Between 8 Feet and 500 Feet AGL ..... 3-2  \nPower Failure Below 8 Feet AGL .................. 3-3  \nMaximum Glide Distance Configuration ............. 3-3  \nMinimum Rate of Descent Configuration ............ 3-3  \nAir Restart Procedure .......................... 3-3  \nEmergency Water Landing – Power Off ............. 3-4  \nEmergency Water Landing – Power On ............. 3-4  \nLoss of Tail Rotor Thrust in Forward Flight ........... 3-5  \nLoss of Tail Rotor Thrust in Hover ................. 3-5  \nHeadset Audio Failure .......................... 3-5  \nEngine Fire During Start on Ground ................ 3-6  \nEngine Fire in Flight ............................ 3-6  \nElectrical Fire in Flight .......................... 3-6  \nTachometer Failure ............................ 3-7  \nHydraulic System Failure ........................ 3-7  \nGovernor Failure .............................. 3-7  \nWarning/Caution Lights ......................... 3-8  \nAudio Alerts ................................. 3-11  \nFAA APPROVED: 11 MAY 2020 3-i  \nINTENTIONALLY BLANK  \nSECTION 3  \nEMERGENCY PROCEDURES  \nDEFINITIONS  \nLand Immediately – Land on the nearest clear area where a safe normal landing can be performed. Be prepared to enter autorotation during approach, if required.  \nLand as soon as practical – Landing site is at pilot’s discretion based on nature of problem and available landing areas . Flight beyond nearest airport is not recommended.  \nPOWER FAILURE – GENERAL  \nA power failure may be caused by either an engine or drive system failure and will usually be indicated by the low RPM horn. An engine failure may be indicated by a change in noise level, nose left yaw, an oil pressure light, or decreasing engine RPM. A drive system failure maybe indicated by an unusual noise or vibration, nose right or left yaw, or decreasing rotor RPM while engine RPM is increasing.  \nIn case of power failure, immediately lower collective to enter autorotation and reduce airspeed to power-off Vne or below.  \nCAUTION  \nAft cyclic is required when collective is lowered at high airspeed.  \nCAUTION  \nDo not apply aft cyclic during touchdown or ground slide to prevent possible blade strike to tailcone.  \nFAA APPROVED: 21 OCT 2016 3-1  \nPOWER FAILURE ABOVE 500 FEET AGL  \n1. Lower collective immediately to maintain rotor RPM.  \n2. Establish a steady glide at approximately 70 KIAS. (For maximum glide distance or minimum rate of descent, see page 3-3.)  \n3. Adjust collective to keep RPM between 97 and 108% or apply full down collective if light weight prevents attaining above 97% .  \n4. Select landing spot and, if altitude permits, maneuver so landing will be into wind.  \n5. A restart may be attempted at pilot’s discretion if sufficient time is available (See “Air Restart Procedure”, page 3-3) .  \n6. If unable to restart, turn unnecessary switches and fuel valve off.  \n7. At about 40 feet AGL, begin cyclic flare to reduce rate of descent and forward speed.  \n8. At about 8 feet AGL, apply forward cyclic to level ship and raise collective just before touchdown to cushion landing. Touch down in level attitude with nose straight ahead.  \nPOWER FAILURE BETWEEN 8 FEET AND 500 FEET AGL  \n1. Lower collective immediately to maintain rotor RPM.  \n2. Adjust collective to keep RPM between 97 and 108% or apply full down collective if light weight prevents attaining above 97% .  \n3. Maintain airspeed until ground is approached, then begin cyclic flare to reduce rate of descent and forward speed.  \n4. At about 8 feet AGL, apply forward cyclic to level ship and raise collective just before touchdown to cushion landing. Touch down in level attitude and nose straight ahead.  \nFAA APPROVED: 21 FEB 2014 3-2  \nPOWER FAILURE BELOW 8 FEET AGL  \n1. Apply right pedal as req","cbCaivdFqhNKWqKo","https://ap.wps.com/l/cbCaivdFqhNKWqKo","pdf",160767,14,"English","# SECTION 3 EMERGENCY PROCEDURES\n## Definitions\n## Power Failure - General\n## Power Failure Above 500 Feet AGL\n## Power Failure Between 8 Feet and 500 Feet AGL\n## Power Failure Below 8 Feet AGL\n## Maximum Glide Distance Configuration\n## Minimum Rate of Descent Configuration\n## Air Restart Procedure\n## Emergency Water Landing - Power Off\n## Emergency Water Landing - Power On\n## Loss of Tail Rotor Thrust in Forward Flight","[{\"question\":\"What are the typical indications of a power failure, and how can it be distinguished between engine and drive system failures?\",\"answer\":\"Power failure is usually indicated by the low RPM horn. Engine failure may show as noise level change, nose yaw left, oil pressure light, or decreasing engine RPM; drive system failure may show unusual noise or vibration, yaw right or left, and decreasing rotor RPM while engine RPM increases.\"},{\"question\":\"What immediate actions are recommended during a power failure?\",\"answer\":\"Immediately lower collective to enter autorotation and reduce airspeed to power-off Vne or below.\"},{\"question\":\"How should the landing be managed during power failure at different altitudes (above 500 ft AGL, 8–500 ft AGL, and below 8 ft AGL)?\",\"answer\":\"Above 500 ft AGL: lower collective to maintain rotor RPM, establish a steady glide, adjust collective to keep RPM within the specified range, and aim for into-wind landing, with an optional restart attempt if time allows. Between 8 and 500 ft AGL: lower collective to maintain rotor RPM, keep RPM in the specified range, maintain airspeed until ground is approached, then flare and level the ship with forward cyclic at about 8 ft AGL. Below 8 ft AGL: use right pedal as needed to prevent yawing, allow the rotorcraft to settle, then raise collective just before touchdown to cushion landing.\"}]","SECTION 3 - EMERGENCY PROCEDURES - Power Failure | PDF",1790506275,35]