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Emergencies - Heli Academy

EUROCOPTER EC120B · Checklist

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Overview

This document is a checklist for the Eurocopter EC120B, detailing emergency procedures and operational guidelines. It includes instructions for various in-flight emergencies and system failures, emphasizing the importance of following the approved checks and procedures in the AFM.

  • Only AFM checks and procedures are approved.
  • Follow specific procedures for autorotation and engine relighting.
  • Address smoke in the cabin by identifying the source and ventilating.
  • Maintain control during hydraulic system failure and adjust airspeed.
  • Monitor engine oil temperature and land if it exceeds 110°C.
  • Respond to warning lights promptly to ensure safety.
  • Land as soon as practicable in case of low fuel pressure.
  • Perform shallow approaches during certain emergencies.

Document

Source

Originally published by heli-academy.ch. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.

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Document details

Type
·
Checklist
File size
·
96 KB
Publisher
·
heli-academy.ch
Language
·
en
About this document
What is the Emergencies - Heli Academy?

The Emergencies - Heli Academy is a checklist for the EUROCOPTER EC120B.

Where does the Emergencies - Heli Academy come from?

This copy of the Emergencies - Heli Academy was originally published by heli-academy.ch and is hosted on Sprinkle as a free, searchable reference copy.

Documentation completeness
3/7

Most owners only have the POH. Here's the essential set for the EUROCOPTER EC120B.

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In this document

Autorotation Procedure

Collective reduce, aft cyclic to get nose up, set IAS to Vy, and maneuver aircraft into wind.

Engine Relighting

Follow normal engine start procedure when Ng < 10% and ensure minimum 1000ft AGL.

Smoke in the Cabin

Identify the source of smoke and take appropriate actions, including turning off systems and ventilating.

Hydraulic System Failure

Adjust airspeed for control, verify HYD switch ON, and land as soon as practical if not restored.

Warning Lights

Monitor various warning lights and respond according to the specified procedures for each indication.

Fuel Management

Land as soon as possible if fuel quantity is below 30kg and avoid sideslip over 15°.

Safety notes

  • Land immediately if engine fire is indicated.
  • Land as soon as practicable if oil pressure is low.
  • Monitor MGB temperature and land as soon as possible if it remains high.
  • Reduce power and land as soon as possible if metal particles are detected in engine oil.
  • Land as soon as practicable if battery fuse has blown.
  • Check and respond to low fuel pressure immediately.

Full document text

HS Issue 1 / Rev. 0 Only the checks and procedures in the AFM are approved. Heli Sitterdorf provides this document as additional material and declines all responsibility. Autorotation procedure -Collective reduce, aft cyclic to get nose up -Set IAS to Vy -Twist grip shut off detent -Maneuver aircraft into wind -At 70ft AGL cyclic flare -At 20ft collective increase and cyclic forward -Collective increase to cushion landing Engine relighting -When Ng < 10% -Normal engine start procedure -Minimum 1000ft AGL required GOV failure NR drop: -Collective reduce to maintain NR in green arc -Twist grip à check in flight position -If necessary apply autorotation NR increase: -Collective increase to maintain NR in green arc -Twist grip slightly reduce -Land as soon as possible -Initiate a shallow approach -Set Torque at around 30% -Set ground speed below 10kts -After touch down reduce twist grip to idle before before lowering collective Smoke in the cabin Source of smoke identified: -Corresponding system OFF -Ventilate the cabin Source of smoke not identified: -Heating/demisting OFF -Battery and Generator OFF -Ventilate the cabin -All consumers OFF -Battery ON à check DC voltage -Generator ON à check DC voltage If DC parameters faulty: -Generator OFF -Unnecessary equipment OFF -Land as soon as practicable If DC parameters correct and no smoke detected: -All consumers one by one ON to identify failed system then keep it off -Continue flight upon equipment failed Flight control servo jam -Maintain attitude -HYDR switch OFF -Set IAS to Vy à apply HYDR failure procedure VEMD failure One screen failure: -Read all information on other screen -Use scroll on display or collective if necessary Both screen failure: -Check battery and generator ON -Set IAS to max 100 kts (-2kts/1000ft) -Carry out a no hover landing Emergencies EC120 HS Issue 1 / Rev. 0 Only the checks and procedures in the AFM are approved. Heli Sitterdorf provides this document as additional material and declines all responsibility. Loss of TR thrust in flight -Indicated by nose left yaw, cannot be stopped by right pedal Hover IGE or within H/V: -Twist grip à IDLE -Collective à INCREASE to cushion landing Hover OGE: -Collective à REDUCE depending on available height -Cyclic à FORWARD to gain airspeed -Airspeed à MAINTAIN Vy or higher -Collective à ADJUST to obtain minimum sideslip angle -Depending on minimum speed, LAND or AR to hard surface In CRUISE: -Airspeed à Maintain Vy or higher -Collective à ADJUST to obtain minimum sideslip angle -Depending on minimum speed, LAND or AR to hard surface HYD system failure -Adjust airspeed for comfortable control -HYD switch à verify ON -If HYD not restored à HYD switch OFF -Land as soon as practical Abnormal NR/NF indications NR indication failure: -Collective à Maintain Tq > 10% -NR is given by NF pointer -Continue flight NF indication failure: -Check in normal operating range with Tq > 0% -Continue flight ENGINE OIL > 110° C -IAS set to Vy -If temperature decreases à land as soon as practicable -Otherwise à land as soon as possible -Check oil pressure gauge -If gauge confirms pressure loss, land immediately Loss of OAT, Ng, Tq, T4 -FLI is replaced by 3-data symbology -Continue flight OAT indicator failure: -Max T/O PWR Ng: 100% -Max cont. PWR Ng: 98.5% Ng indicator failure: -If OAT > -10°C: T4 limited to 760°C -If OAT ≤ -10°C: T4 limited to 750° C -The T4 limitations displayed are the starting limitations Tq meter failure: -Comply with the table: T4 indication failure: -Comply with Ng and Tq limitations -Do not start the engine HS Issue 1 / Rev. 0 Only the checks and procedures in the AFM are approved. Heli Sitterdorf provides this document as additional material and declines all responsibility. ENG FIRE -Indicates fire in engine compartment à procedure -land immediately ENG P -Check oil pressure gauge -If normal à Land as soon as practicable -If low or NIL à land immediately à perform AR MGP P -Excessive temp or low oil pressure of MRGB -Tq à set < 45% -Land as soon as possible (max. 30min flight time) TWT GRIP -Twist Grip à Open to FLIGHT position HYDR -Reduce Collective -Set IAS to Vy -HYD switch à OFF -Land as soon as possible -Shallow approach with slow running landing BATT TEMP -Battery à OFF -Check GEN voltage: Voltage correct: -Check BATT Temp, if decreases à Continue flight -If steady à Land as soon as practicable Voltage > 32V -BATT switch à ON -GENE switch à OFF -Unnecessary equipment OFF GEN 32.0 V -GEN à OFF -CWP à Monitor for BATT TEMP -Apply GENE procedure case A GEN 30.0 V -GEN voltage à MONITOR GEN 24.0 V -GENE procedure à apply -GEN voltage à Check -If > 24V à continue flight -If < 24V à apply GENE procedure case A GEN 210 A -Unnecessary equipment à OFF à Continue flight GENE -GEN voltage on VEMD à CHECK -Verify GENE switch à ON Case A; GENE light rem. on: -Push ELEC RST switch à if light out, apply Case B -Unnecessary equipment à OFF -BAT voltage on VEMD à Monitor -Land as soon as practicable -When battery voltage <18V, NR audio alarm will come on Case B; GENE light out: -Continue flight Warning lights EC120 HS Issue 1 / Rev. 0 Only the checks and procedures in the AFM are approved. Heli Sitterdorf provides this document as additional material and declines all responsibility. ENG CHIP -Metal particles in engine oil circuit -Reduce Power à Land as soon as possible MGB TEMP -IAS à set to Vy -Monitor CWP -MGB Temp remains ON: land a soon as possible -Otherwise: land as soon as practicable GB CHIP -Metal particles in engine MGB or TGB oil circuit -IAS à set to Vy -Land as soon as practicable BATT -Battery is offline -Battery check ON -ELECT RST à PUSH -land as soon as practicable BATT FUSE -Battery fuse has blown à Battery is offline -Land as soon as practicable FUEL -Fuel quantity < 30kg -15min of flight time remaining with MCP -Avoid sideslip over 15° -Land as soon as possible FUEL P -Indicates low fuel pressure

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-At engine start up à FUEL PUMP ON -Reduce power -FUEL PUMP ON -Land as soon as possible FUEL FILT -Fuel filter clogged -Reduce power -Light remains ON à Land as soon as possible -Light OFF à Land as soon as practicable -In both cases: if Ng oscillations occur à Check NR -If NR normal à Land as soon as possible -Otherwise apply GOV FAILURE procedure PITOT -PITOT check ON HORN -HORN check ON P2 TEMP -Maximum temperature in heating duct exceeded -Check that air flows and air outlets not obstructed