Chinook CH-47/Appendices

1 Switch Summary

1.1 List of Toggle and Tri-State Switches

Name	Description
posn	Position lights
formMode	Formation mode (NVG or Normal)
acTop	Top Anti-Collision Lights
acBot	Bottom Anti-Collision Lights
cpSrchLt	Co-Pilot Side Search/Landing Light
compass	Compass mode (free or slaved)
troopAlarm	Troop Alarm Bell
batt	Main Battery
gen1	#1 Generator
gen2	#2 Generator
genapu	APU Generator
fadec1	#1 FADEC Mode (Revisionary or Primary)
fadec2	#2 FADEC Mode (Revisionary or Primary)
bupwr	FADEC Backup Power
loadShare	Load Share Mode (PTIT or Torque)
LAAux	Left Aft Aux Fuel Pump
RAAux	Right Aft Aux Fuel Pump
LAMain	Left Aft Main Fuel Pump
RAMain	Right Aft Main Fuel Pump
LFMain	Left Front Main Fuel Pump
RFMain	Right Front Main Fuel Pump
LFAux	Left Front Aux Fuel Pump
RFAux	Right Front Aux Fuel Pump
inst	Instrument Flood Lights
ovhd	Overhead Flood Lights
emerExit	Emergency Exit (ARM/DISARM)
dome	Cockpit Dome Lights
xfeed	Crossfeed
refuelSta	Refueling Station Master
pSrchLt	Pilot-Side Search/Landing Light
pitot	Pitot Heat
ws-l	Wiper (left)
ws-c	Wiper (center, if installed)
ws-r	Wiper (right)
cutCable	Hoist Cable Emergency Cut (GUARDED)
hoistMstr	Hoist Master Power
hookMstr	Hook Master Power
hookRel	Hook Emergency Releases (GUARDED)
pwrStr	Power Steering/Brake Hydraulics
fireDet	Fire Detection Test
cpVgi	Co-Pilot VGI (NORM/EMERG)
pVgi	Pilot VGI (NORM/EMERG)
clBrt	Caution Light Brightness (DIM/BRIGHT)
clTtest	Caution Light Test (OFF/TEST)
antSel	Antenna Select
gpsZero	GPS Zeroize (NORMAL/ZERO)
start[ts]	Start: ENG1 - OFF - ENG2
ospd[ts]	Overspeed: Test ENG1 - OFF - ENG2
compSwing[ts]	Compass Swing: "+" - OFF - "-"
troopLight[ts]	Troop Light: GREEN - OFF - RED
heat[ts]	Heater: BLR ONLY - OFF - HTR
hoist[ts]	Hoist Cable: OUT - OFF - IN
fltContr[ts]	Flight Control Hydraulics: 2 ON - BOTH - 1 ON
rampPwr[ts]	Ramp Hydraulic Power: OFF - ON - EMERG
rampEmer[ts]	Emergency Ramp Control: UP - HOLD - DOWN
fireCutOff-1[p]	#1 Eng. Emergency Fuel Cut-Off
fireCutOff-2[p]	#2 Eng. Emergency Fuel Cut-Off
brake[p]	Parking Brake
fwdTrim[ts]	Forward Rotor Trim: EXTEND - STOP - RETRACT
aftTrim[ts]	Aft Rotor Trim: EXTEND - STOP - RETRACT
swivel[ts]	Ground Steering/Swivel Mode: STEER - UNLOCK - LOCK
trim	Cyclic Trim
pwrXfer1	#1 FC Hydraulic Transfer
pwrXfer2	#2 FC Hydraulic Transfer
apu[ts]	APU Master: OFF - RUN - START
cgiTest[ts]	Cruise Guidance Indicator Test: FWD - OFF - AFT
rfFS	Fuel Station - Right Front Tank Select
rmFS	Fuel Station - Right Main Tank Select
raFS	Fuel Station - Right Aft Tank Select
lfFS	Fuel Station - Left Front Tank Select
lmFS	Fuel Station - Left Main Tank Select
laFS	Fuel Station - Left Aft Tank Select
fsLts	Fuel Station - Lights
fsMain	Fuel Station - Master Power

1.2 List of Rotary Switches

Name	Description
formLt	Form Light Brightness
cpInstLt	Co-Pilot Instrument Lights
ochdLt	Overhead Lights
cabinTemp	Cabin Temperature
wiper	Wiper Speed
ctrCslLt	Center Console Lights
stickPosLt	Stick Position Light
fadecNr	FADEC Target Rotor RPM
floodLt	Flood Lights
ctrInstLt	Center Instrument Lights
pltInstLt	Pilot Instrument Lights
hookSel	Hook Mode Select: FWD - MID - AFT - TANDEM - ALL
cpRALt	Co-Pilot Radar Altimeter Lighting
pRALt	Pilot Radar Altimeter Lighting
xop	Transmission Oil Pressure Select: TEST - SCAN -FWD - AFT - MIX -LEFT -RIGHT
xot	Transmission Oil Temperature Select: TEST - SCAN -FWD - AFT - MIX -LEFT -RIGHT
fuelDsp	Fuel Tank Level Display: L. AFT - L. MAIN - L. FWD - TOTAL - R. FWD - R. MAIN - R. AFT
xpdrMode	Transponder Master: OFF - STBY - NORMAL - TA - TA/RA - EMER
xpdrMode	Transponder Cipher Mode: HOLD - A - B - ZERO
afcs	AFCS System Select: OFF - 1 - BOTH - 2 - OFF
fsSelect	Fuel Station Level Display: L. AFT - L. MAIN - L. FWD - TOTAL - R. FWD - R. MAIN - R. AFT

2 CAUTION/ADVISORY PANEL LIGHTS

Name Description ENG 1 FAIL Engine #1 has failed during start-up, or in flight. ENG 2 FAIL Engine #1 has failed during start-up, or in flight. FADEC 1 FADEC 1 PRI system failure ENG CONT PWR Operarting with PTIT load sharing FADEC 2 FADEC 1 PRI system failure REV 1 FADEC 1 revisionary mode failure REV 2 FADEC 2 revisionary mode failure ENG 1 OIL LVL Less than 2 quarts usable oil remaining in Engine #1 EAPS 1 FAIL Hard fault in #1 EAPS system EAPS 2 FAIL Hard fault in #2 EAPS system ENG 2 OIL LVL Less than 2 quarts usable oil remaining in Engine #2 ENG 1 CHIP DETR Metal chips detected in Engine #1 XMSN OIL HOT Transmission oil temperature is more than 140C XMSN CHIP DETR Metal chips detected in a transmission system ENG 2 CHIP DETR Metal chips detected in Engine #2 ENG 1 XMSN HOT #1 Engine transmission is overheated XMSN OIL PRESS Aft transmission oil pressure is less than 20psi ENG 2 XMSN HOT #2 Engine transmission is overheated L FUEL LVL Fuel level in left main tank is less than 20% XMSN AUX OIL PRESS Less than 20 psi in the forward or combining transmission R FUEL LVL Fuel level in right main tank is less than 20% L FUEL PRESS No fuel pressure in left (#1) fuel system HTR HOT Temperature within heater is greater than 177C R FUEL PRESS No fuel pressure in right (#2) fuel system RECT 1 No power on #1 AC bus, or rectifier failure BATT SYS MALF Battery or battery charing system has failed PWR STEER Steering/brake hydraulic pressure has failed or been disabled RECT 2 No power on #2 AC bus, or rectifier failure GEN 1 Generator #1 is not producing power or switch is off GEN 2 Generator #2 is not producing power or switch is off HYD 1 #1 Flight Control Hydraulics System pressure is below 1800 psi CM JAM Counter measures jammer failed (not installed) UTIL HYD SYS Utility hyrdaulic system pressure is below 1800 psi HYD 2 #1 Flight Control Hydraulics System pressure is below 1800 psi AFCS 1 #1 AFCS is off, lacking power or hyrdraulic pressure, or hard failed CM INOP Counter measures inoperative DUAL HOOK FAULT The forward and/or aft hook circuit has an electrical fault. AFCS 2 #2 AFCS is off, lacking power or hyrdraulic pressure, or hard failed APU ON The APU is up to speed and can be used EXT PWR External power is connected to the bus FWD HOOK OPEN The forward cargo hook has been opened PARK BRK ON Parking break is on MID HOOK OPEN The midcargo hook has been opened AFT HOOK OPEN The aft cargo has been opened LOW RPM RPM is below 90% with collective not full down