COMAC ARJ21-700 - Page 198

ARJ21-SVV19-13120-00
RampServicingOperation
Instruction
(c)MixtureofwaterandTypeIIuid
(4)Fluidsthatfollowcanbeusedfortheanti-icing:
(a)TypeIuid,
(b)MixtureofwaterandTypeIuid
(c)TypeIIuid
(d)MixtureofwaterandTypeIIuid
(e)TypeIVuid
(f)MixtureofwaterandTypeIVuid.
WARNING:DONOTWALKONTHEWINGSORHORIZONTALSTABILIZERS.BECAUSETHEICE
ANDSNOWONTHESURFACESCANCAUSEPEOPLETOFALLDOWNANDEQUIP-
MENTTOBEDAMAGED.
WARNING:IFAIRPLANEDEICING/ANTI-ICINGFORSPECIFICAIRPORTARENEEDED,DOIT
WHENTHEENGINE(SINGLEENGINEORBOTHENGINE)IS(ARE)INIDLECONDI-
TION.ALLTHEPERSONSMUSTSTAYAWAYFROMTHEDANGEROUSAREA.
WARNING:WEARSAFETYBELTSWHENYOUWORKINTHEAREATHATISHIGHERTHAN2ME-
TERSTOAVOIDINJURYORDEATHCAUSEDBYFALLINGDOWN.
CAUTION:BEFOREDE-ICINGORANTI-ICING,STOPTHEAPUORENGINESIFTHEYAREINOP-
ERATION(THEHAZARDOUSDEICINGFLUIDWILLGOINTOTHEAIR-CONDITIONING
SYSTEMTHROUGHTHEAPUORENGINEBLEEDAIR),ANDDONOTUSETHEAIR
CONDITIONINGPACK.
CAUTION:DURINGDE-ICINGORANTI-ICING,IFTHEAPUORENGINESAREINOPERATION,DO
NOTSPRAYTHEDEICINGFLUIDDIRECTLYINTOTHEENGINEORAPUAIRINLETS.
OTHERWISEDAMAGETOTHEENGINESORAPUWILLOCCURIFTHEYINGESTA
LARGEAMOUNTOFDEICINGFLUIDDURINGOPERATION.
CAUTION:BEFOREYOUUSETHEENGINES,IFYOUCANSEEICEONTHEMID-AFTFUSELAGE
OFTHEAIRCRAFT,UPPERSURFACEOFTHEWING,ANDTHEEMERGENCYDOOR,
DOTHEDE-ICINGMANUALLYBEFOREYOURSTARTTHEENGINE.OTHERWISE,
DAMAGETOENGINESCANOCCURIFTHEENGINESSUCKINTHESLUSHORICE.
CAUTION:DONOTUSETHEHARDORSHARPTOOLSTOREMOVEICEFROMTHEAIRPLANE
SURFACE.OTHERWISE,DAMAGETOTHEAIRPLANESURFACE(PAINTING,PROTEC-
TIVEFILM,OXIDELAYER,ETC.)MAYOCCUR.
B.Deicing/Anti-icingProcedure
(1)Selectstheappropriatedeicing/anti-icingstepsaccordingtotheactualsituation.
NOTE:
Makesurethattheleft&rightwingsandtheleft&rightsidesofhorizontalstabilizerare
inthesameconditionandcompletelysymmetricalafterdeicing/anti-icing.
NOTE:
WhenyouusetheheatedTypeIdiluenttoremovetheice,snow,frostandotherpol-
lutantsfromtheaircraftsurfaces,uidresiduesontheaircraftsurfacescanonlygive
limitedprotection.Theoutsideairtemperatureandthemeteorologicalconditioncanbe
takenintoaccounttoselectproperdeicing/anti-icinguids.
NOTE:
Beforeyoumoveanaircraftoutofawarmhangarduringicingconditions,dotheanti-
icingprocedureontheaircraft.Thiswillreducethepossibilitythaticeorsnowwillmelt
henittouchesthewarmaircraftandfreezeagain.
ARJ21-A-13-12-25-01A-261A-A
Issue001,2023-01-29
Page2of7
Applicableto:ALL