COMAC ARJ21-700 - Hazard Areas of Aircraft - Technical Data

ARJ21-SVV19-13120-00
RampServicingOperation
Instruction
HazardAreasofaircraft-Technicaldata
1.General
A.Thisprocedureprovidesenginesandweatherradarhazardareaforaircraftgroundservicepeo-
ple.
2.Hazardareaofweatherradar
A.Pleasemakesurethatthereisnopeoplein5metersaroundweatherradarwhenweatherradar
isinactivestatusortest.Orpeoplewillberadiating.
B.Refueling,defuelingandoxygenatingareprohibitedwhenweatherradaristransmittingelectro-
magneticwave.Ortheoperationwillcauseexplosion.
C.Weatherradarisprohibitedtoturnonwhentheaircraftisinhangarorthereiswallaroundwork
D.WeatherRadarHazardAreareferstoFigure1Hazardareaofweatherradar.
3.EngineHazardArea
A.Itisdangeroustoworkaroundengines.Stayoutoftheinletandexhaustareaswhentheengine
isinoperation.
B.Thesearethehazardsaroundanengineinoperation:
(1)Lowpressureareawillbeproducedaroundinletcowling.PeopleandFODareprohibited
aroundengineinletcowlinghazardarea.InletcowlinghazardareareferstoFigure2Engine
groundsafetyprecautions
(2)Exhaustvelocityofengineisfast.PeopleandFODareprohibitedaroundengineexhaust
velocityhazardarea.ExhaustvelocityhazardareareferstoFigure3Enginegroundsafety
precautions.
(3)Exhaustgastemperatureofengineishigh.PeopleandFODareprohibitedaroundengine
exhaustgashightemperaturehazardarea.Exhaustgashightemperaturehazardarea
referstoFigure3Enginegroundsafetyprecautions.
(4)Thenoiseofenginewillcausedamagetoears.Whenyouarenearanengineinoperation,
alwaysuseearprotectiontominimizethenoisetoyourears.
ARJ21-A-13-12-11-01A-030A-A
Issue001,2023-01-29
Applicableto:ALL
Page1of4