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항공정비사20

[ATA.80] Engine Starting System ■ Engine Starting System(ATA.80)Engine Starting System- starting or motoring 시 pneumatic PWR(APU, GPU, ENG)을 사용해 ENG N2 Rotor를 돌려줌- pneumatic PWR → Start Air V/V → Pneumatic Starter → AGB → TGB → IGB → HP Rotor(N2)EEC protect(ENG starting 중)- Hot start, Wet start, Hung start, StallDEU- CDU, CDS, Indicating, Other Compartment- DEU는 N2 55% 이상이 되는 것을 감지하고 ENG Start S/W “OFF” 시켜줌- DEU는 EEC와 서로 정보를 주.. 2024. 6. 2.
[ATA.76~79] Engine Control and Indicating, Exhaust, Oil ■ Engine Control(ATA.76)- 구성 : FWD Thrust Lever, Reverse Thrust Lever, Interlock Latch, Reverse Thrust Interlock Solenoid, Resolver, Autothrottle Assembly, Rod, Start LeverThrust Lever- lever가 작동하면 thrust lever resolver를 통해 EEC로 thrust command signal을 보냄- TO/GA LEVER : Take off, Go Around 시- A/T Disengage buttonInterlock Latch- FWD Thrust Lever와 Reverse Thrust Lever가 동시에 작동하는 것을 예방- Thrust Lever.. 2024. 6. 2.
[ATA.26] Fire Protection ■ Fire Protection목적 : Fire, Smoke, Overheat, Pneumatic duct leak 등 모니터링ENG, APU, Cargo(CGO), Wheelwell(W/W), Wing Body(W/B), Lavatory(LAV), Portable DetectorCONT'(control)IND'(indication)ExtinguishENGLINDBERG TYPE(압력식)FIRE/OVHT/FAULT/TESTENG/APU FIREDetection ModuleENG/APU FIREControl PanelBOTTLE 2EA(wheel well에 위치)APULINDBERG TYPE(압력식)FIRE/FAULT/TESTENG/APU FIREDetection Module(APU SHUT DOWN)AP.. 2024. 6. 2.
[ATA.21] Air Conditioning System ■ Air Conditioning System ※ 공기흐름(Air Flow)ENG bleed air → Pack V/V(FCSOV) → TCV or SBTCV → Turbine outlet에 유저로 나가는 Temp control → Primary Heat Exchanger(Ram air를 통해 bleed air 냉각) → 압축기 → Secondary Heat Exchanger → Water Extractor Duct → Reheater → Condenser → Water Separator → Reheater → Turbine → Condenser → Mix manifold(Mixer) → FLT COMP(Cockpit), AFT Cabin, FWD Cabin에 공급​FCSOV(Pack V/V) : Pne.. 2024. 6. 2.
[ATA.35] Oxygen System(산소계통) ■ Oxygen System(산소계통)flight crew, cabin attendant, passenger에게 공급산소공급 : Cabin 고도가 높을 때, 응급상황, 응급환자(portable)BAT PWR가 있으면 Mask drop 가능■ Flight crew OxygenGaseous Type(Oxygen Cylinder, E/E Compartment)Oxygen Cylinder : (full : 1850psi), (green 색 : 가벼움, dark green : 무거움)Green plastic diskgreen disk가 보이면 Oxygen 있는 것(2600psig), green disk가 안보이면 Oxygen pressure은 '0'E/E Compartment EXT access door에 위치,.. 2024. 6. 2.
[ATA.73~75] ENG Fuel, IGN, Air System(엔진 연료계통, 점화계통, 공기계통) ■ ENG Fuel and Control(ATA.73)연료흐름fuel tank → boost pump → spar v/v → A/C로 fuel 흘러들어감 → low pressure fuel pump → IDG Oil cooler → oil/fuel heat exchanger → fuel filter → high pressure fuel pump → servo fuel heater(servo fuel은 각종 V/V에 공급) → HMU(Hydromechanical unit, FMV, HPSOV 등 fuel V/V control, filter에 걸러진 fuel은 다시 IDG oil cooler로 들어감) → fuel flow transmitter → fuel nozzle filter → fuel nozzle​.. 2024. 6. 2.

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