T-1 Systems/Trans GK Flashcards
Red Colored Annunciator
Immediate Action, Danger
Yellow Colored Annunciator
Aircrew Action, not as serious
White Colored Annunciator
System Advisory
Green Colored Annunciator
System advisory - Widget working normally
Aural Tones sound for:
BEAR
B - Boldface situations
E - Exceeding flight envelope
A - Aircraft Configuration
R - Reminders (i.e.: cruise altitude)
Very Slow
Slow
On Speed
Fast
Very Fast
Engine Bypass Ratio
2:1
66% Bypass: 33% Core
What systems make up the Fire Protection System
- Overheat / Fire Detection System
- Fire Extinguishing Systems
Functions of the engine flow divider valve
- Separate fuel flow to engine into primary and secondary flows
1-23 Dash-1
Engine Driven Accessories
BASE
B - Bleed Air
A - Accessory Gearbox
S - Engine Synchronization System
E - Engine Vibration Indicators
ITT is measured in the engine nacelle by:
- 6x Thermo Couplers
- 2x T1 Probes
Cost/benefit of the bleed air system
Good:
- Air clean (no fuel, oil, or exhaust fumes)
- Hot
- Under pressure
- Large quantity available
Bad:
-Degrades engine performance
Fuel capacity of fuselage tanks
2462 lbs total
Fuel capacity of wing tanks
2781 lbs total
Boost Pump functions
- Engine start
- Cross feed fuel
- Primary Jet Pump backup
- Motive flow for transfer jet pumps
Explain Fuel Cross Feed
- Fuel flows from one wing to both engines
- Fuel flows only from whichever wing is selected by the Cross Feed controls
How much extra fuel can the T-1 take if pressure fueled ?
~215 lbs
Icing inhibitor required
0.04% - 0.15%
5-11 Dash-1
How many fuel tanks are in the T-1?
6x total:
- Left wing
- Right wing
- Left Mid
- Right Mid
- Aft Fuselage
- Aft Cabin
How many fuel probes are in the T-1?
12x total:
- 4x in left wing
- 4x in right wing
- 2x in left mid
- 1x Aft fuselage
- 1x Aft cabin
Allowed fuel types
Jet A
Jet A-1
Jet B
JP-4
JP-5
JP-8
JP-8 +100
Fuel Temperature Limitations
-40°C - +50°C
5-11 Dash-1
At what pressure does the fuel filter bypass valve open?
2.3 +/- 0.2 psi
1-51 Daash-1
When does wing overpressurization occur?
3.5 +/- 0.5 psi
1-49, 1-51 Dash-1
Items on the Left Hand Load Bus
NO RAISE
N – Nonessentials (L)
O – Overhead Panel
R – Radio Masters (L)
A - AHRS
I – Inverter 1
S – Standby Bus
E – Emergency Bus
Items on Right Hand Load Bus
IRON G
I - Inverter 2
R - Radio Masters (R)
O - Overhead Panel
N - Nonessentials (R)
G - Galley Bus (R Main)
Items on the Standby Bus
CRUISE
C – Copilot Instrument Lights
R – RTU 1
U – UHF
I – ITT (L)
S – Stby Attitude/Altimeter
E – EFC Eng Start
Items on the Emergency Bus
SLEEVES
S – Selected Left Hand Inst
L – Landing Gear Lts
E – Engine Fire/Cabin Smoke
E – Emergency Pitch Trim
V – VHF (NAV 1)
E – Emergency Lights
S – Standby Bus
Purpose of the GCU
GORE
G – Ground Fault Protection
O – Overvoltage Protection
R – Reverse current Protection
E – Equalize gen outputs
What is powered by the AC current system
PG FOG
P – Pitch trim indicator
G – GPWS
F – Flap ind & Flap assym
O – Oil Px ind (R&L)
G – GRE (Ground Recording Equip)
When does the boost pump automatically engage?
EFFC
E – Engine Start
F – Fuel Feed Chamber less than full
F – Fuel Pressure Low
C – Cross Feed
When does the Ignition System automatically activate?
SEE
S – Stick Shaker (Stall)
E – Engine Anti-Ice
E – Engine Start
What is contained in the Accessory Box?
SHOPPN
S – Starter Generator
H – HMU
O – Oil Pump
P – Hydraulic Pump
P – Engine Driven Fuel Pump
N – N2 Sensors
What is the nose gear strut extension?
Approx 3.5 inches for nominal CG
2-5 Dash-1
Hot Start possible causes
- Incorrect starting procedure
- Bleed air system(s) left on
- Early starter dropout
- No %N1 RPM during start (possibly frozen due to ice in the inlet)
- Leaking pneumatic line
- Faulty HMU or misadjusted HMU linkage
- Faulty igniter, power supply or igniters
1-29 Dash-1
False or Hung Start possible causes
- Incorrect starting procedure
- EFC not out of reversion
- Bleed air system(s) left on
- Faulty HMU
- Misadjusted HMU linkage or HMU regulating valve stuck
- Flow divider valve malfunction or leak
1-29, Dash-1