Term
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Definition
Anytime an operating limitation is exceeded, an appropriate entry shall be made in helicopter logbook. Entry shall state which limit was exceeded, duration of time, extreme value attained, and any additional info.
Intentional use of transient limits is prohibited.
Landings and torque events (takeoffs) shall be recorded. |
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Term
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Definition
Minimum flight crew consists of one pilot who shall operate the helicopter from the right crew seat. Min pilot weight is 170 LBS
A functional map light is required for night flights.
Certified for land operation under day or night VFR non-icing conditions
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Term
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Definition
AIRSPEEDS
0 TO 130 KIAS CONT OPS
Best Rate of Climb (Vy): 57KIAS
Min Rate of Descent: 52 KIAS
Max Glide Distance: 69
84 KIAS TORQUE between 75 and 100% (takeoff PWR)
100 KIAS MAX FOR AUTOROTATION
130 KIAS MAX Vne sea level to 3000FT DA
NEVER exceed the placarded Vne
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Term
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Definition
PROHIBITED MANEUVERS
Aerobatic maneuvers
FAR 91.303
An intentional maneuver involving an abrupt change in an aircrafts attitude, an abnormal attitude, or abnormal acceleration, not necessary for normal flight
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Term
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Definition
AMBIENT TEMPS
Min Temp is -50C at all ALTs
Max Temps are +51.7C at sea level and decrease with Hp (PA) at standard lapse rate of 2C per 1000 FT PA to 20,000 FT PA.
ENG ANTI ICE shall be on in visible moisture when the OAT is below 5C. MAX ambient temp for ANTI-ICE is 5C. |
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Term
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Definition
GENERATOR
0-90% Cont. Ops (0-180 AMPS)
90% Max (180 AMPS) |
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Term
STARTER LIMITS
(EXTERNAL PWR)
NOTE |
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Definition
EXTERNAL PWR START
40 SEC ON
30 SEC OFF
40 SEC ON
30 SEC OFF
40 SEC ON
30 MINS OFF
NOTE
28 VDC GPU starting shall be limited to 500 amps due to risk of starter damage from overheating |
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Term
STARTER LIMITS
(BATTERY START)
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Definition
BATTERY START
60 SEC ON
60 SEC OFF
60 SEC ON
60 SEC OFF
60 SEC ON
30 MINS OFF
24V 28 AMP battery
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Term
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Definition
POWER PLANT
Rolls Royce model 250-C30P
650 SHP derated to 490 SHP for 5min takeoff power and 370 SHP for CONT OPS (L4 75%) |
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Term
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Definition
NG
63 to 105% Cont OPS
105% MAX Cont OPS
106% 10 sec transient |
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Term
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Definition
NP
71.8 TO 91.5% AVOID CONT OPS
99% MINIMUM
99 TO 101% CONT OPS
101% MAX CONT
104% 5 MIN TRANSIENT
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Term
TURBINE OUTLET TEMPERATURE |
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Definition
TURBINE OUTLET TEMPERATURE
CONT OPS
100 TO 716C CONT OPS
716C MAX CONT
716 TO 768C TAKEOFF, 5 MIN
768C MAX FOR TAKEOFF
871C 10 SEC TRANSIENT
STARTING OPS
826C TRANSIENT, 10 SEC
927C MAX STARTING
do not exceed 10 sec above 826C or 1 sec at 927C
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Term
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Definition
ENGINE TORQUE
0-75% CONT OPERATION
75% MAX CONT
75 TO 100% TAKEOFF, 5 MIN
100% MAX TAKEOFF
105% TRANSIENT, 5 SEC
NOTE
Use of takeoff power is limited to 84KIAS, not to exceed placarded Vne.
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Term
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Definition
FUEL PRESSURE
8 PSI MIN
8-25 PSI CONT OPS
25 PSI MAX |
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Term
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Definition
ENG OIL PRESSURE
50 PSI MIN BELOW 79% NG
90 PSI MIN FROM 79 TO 94% NG
115 PSI MIN ABOVE 94% NG
130 PSI MAX
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Term
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Definition
ENGINE OIL TEMP
0 TO 107C CONT OPS
107C MAX
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Term
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Definition
XSMN OIL PRESSURE
30 PSI MIN
40-70 PSI CONT
70 PSI MAX
XSMN OIL TEMP
15-110C CONT
110C MAX |
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Term
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Definition
The engine limitations consists of torque (ENG TRQ%), turbine outlet temperature (TOT), and RPM (NG and NP) |
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Term
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Definition
NR ROTOR
POWER ON
95% 5 SEC TRANSIENT
99% MIN
99 to 101% CONT OPS
101% MAX CONT
104% 5 MIN TRANSIENT
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Term
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Definition
NR ROTOR
POWER OFF
90% MIN
90 to 107% CONT OPS
107% MAX
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Term
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Definition
FUEL
50-75 LBS/10gals LOW FUEL
APPROVED FUELS: JET A, JET A-1, JET B, JP-4, JP-5, JP-8
Total: 112 gals
Useable: 110.7 gals
Unusable: 1.3 gals |
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Term
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Definition
ROTOR BRAKE
Use is approved after engine shutdown and NR is between 38%-30%
Engine starts with rotor brake engaged are prohibited
DO NOT stop the rotors at the 12 and 6 o'clock postitions due to heat from the exhaust |
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Term
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Definition
SLOPES
Nose Down-5 degrees
Left, Right, Nose Up-10 Degrees |
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Term
MAX GROSS WEIGHT
BAGGAGE COMPARTMENT LIMIT |
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Definition
MAX GROSS WEIGHT
4450LBS
BAGGAGE COMPARTMENT LIMIT
250 LBS
86 LBS per SQFT
75 LBS per SQFT Cabin |
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Term
TAILBOOM
VERTICAL FIN
ENDPLATES (dynamic dihedrals)
LEADING EDGE SLATS |
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Definition
VERTICAL FIN
5.5 Degrees Right
Provides directional (yaw) stability
Reduces the required amount of tail rotor thrust
ENDPLATES (dynamic dihedrals)
Provides dutch roll stability
Off set 5 degrees left to vane into rotor wash
LEADING EDGE SLATS
Improves pitch stability in high power climbs |
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Term
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Definition
FAIL SAFE SYSTEMS
Engine Anti-Ice
Hydraulic System
Particle Separator Purge
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Term
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Definition
COMPONENTS DRIVEN BY Ng
Compressor
N1 Tach/Generator
Starter/Generator
Fuel Pump Assembly
N1 Fuel Control
Oil Pump Assembly |
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Term
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Definition
COMPONENTS DRIVEN BY Np
N2 Tach/Generator
N2 Governor
Torquemeter
Freewheeling Unit |
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Term
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Definition
POWER ASSURANCE CHECK
Bleed Air off (Heater and Anti-Ice)- Off
Level FLT
85-105 KIAS or Vne, whichever is lower
OR
At a Hover |
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Term
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Definition
COMBUSTION SECTION
Approx. 20%-25% of air delivered to this section required to burn the fuel. The other 75% to 80% is used to cool the liner and center the flame. 2% is used to seal oil passages. |
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Term
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Definition
MISC
M/R Blades: Max load applied to blade tips: 90lbs/34in, semi-rigid, seesaw, -11 degree twist, 37ft diameter, swept tips, 13 in chord line
T/R Blades: 4 degree twist, 5ft 5in
MAX END: 60KIAS
TRANS Tilted: 5 degrees FWD
Triple Stack: Trans oil pump, Rotor Tach, and Hydr pump
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Term
The corrective action procedures listed in Section 3 “Emergency/Malfunction Procedures” assume the pilot gives first priority to what?
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Definition
The corrective action procedures listed in Section 3 “Emergency/Malfunction Procedures” assume the pilot gives first priority to what?
All corrective action procedures assume pilot gives first priority to helicopter control and a safe flight path.
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Term
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Definition
Land without delay at the nearest suitable area (i.e. open field) at which a safe approach and landing is reasonably assured. |
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Term
Land as soon as Practicable |
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Definition
The landing site and duration of the flight are at the descretion of the pilot. Extended flight beyond the nearest approved landing area is not recommeded. |
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Term
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Definition
AUTOROTATE
The term autorotate is defined as adjusting the flight controls as necessary to establish an auto-rotational descent and landing. |
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Term
MINIMUM RATE OF DESCENT
MAXIMUM GLIDE DISTANCE
NOMINAL AUTOROTATIVE SPEED |
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Definition
MINIMUM RATE OF DESCENT
52 KIAS
MAXIMUM GLIDE DISTANCE
69 KIAS
NOMINAL AUTOROTATIVE SPEED
Airspeed between the 2 airspeeds is 61 KIAS |
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Term
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Definition
ENGINE FIRE ON GROUND
Throttle-Closed
Fuel Valve Switch-Off
Battery-Off
Rotor Brake-Pull
Exit Aircraft |
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Term
ENGINE MALFUNCTION-
PARTIAL OR COMPLETE POWER LOSS |
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Definition
INDICATIONS
Left yaw
drop in ENG RPM (NP) and (NG)
Low rotor RPM
Low rotor warning light and audio (below 90% +-3%)
ENG out light (55+-3%)
ENG out audio
Change in eng noise |
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Term
ENGINE FAILURE-HOVER
NOTE
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Definition
1. Maintain heading and attitude control
2. Collective – Adjust to control NR and rate of descent. Increase prior to ground contact to cushion landing.
3. Shut down helicopter
NOTE
FWD A/S will aid in the ability to cushion landing
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Term
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Definition
1. Autorotate
2. Attempt engine restart
3. Throttle - Closed
4. Fuel Valve Switch - Off
5. Accomplish Autorotation and Landing
6. Complete helicopter shutdown |
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Term
ENGINE COMPRESSOR STALL
1 of 2
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Definition
Indications:
Engine Pops
High or erratic TOT
Decreasing or erractic Ng or Np
Torque oscillations
1. Collective – Reduce power, maintain slow cruise flight.
2. TOT and Ng – Check for normal indications.
3. ENG ANTI ICE switch – ON.
4. PART SEP switch (if installed) – ON.
5. HEATER switch (if installed) – ON |
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Term
ENGINE COMPRESSOR STALL
2 of 2
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Definition
If pilot elects to continue flight:
6. Collective – Increase slowly to achieve desired power level.
7. TOT and N1 – Monitor for normal response.
8. Land as soon as practical.
If pilot elects to shut down engine:
9. Enter autorotation.
10. Throttle – Closed.
11. FUEL VALVE switch – OFF.
12. Accomplish autorotative descent and landing |
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Term
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Definition
ENGINE OVERSPEED
(No caution/warning/advisory lights illuminated)
Increase in NR, NP, NG,TOT, and a right yaw
1. Throttle – Retard
2. NG or NP – Attempt to stabilize with throttle and collective
3. TOT - Monitor
4. NR - Maintain 90-107% with throttle and collective
If unable to maintain Nr, Np, Ng, TOT
5. Enter Autorotation
6. Throttle - Closed
7. Fuel Valve Switch - Off
8. Accomplish Autorotation and Landing |
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Term
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Definition
ENGINE UNDERSPEED
(No caution/warning/advisory lights illuminated)
Indications: Decrease in NG, NP, TRQ, a possible decrease in NR, and a left yaw
1. Collective – Adjust as required to maintain 90 to 107% NR
2. Throttle – Confirm full open
3. If unable to maintain Nr, establish autorotative descent
4. Prepare for power-off landing |
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Term
ENGINE HOT START/SHUTDOWN
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Definition
ENGINE HOT START/SHUTDOWN
1. Throttle – Closed
2. FUEL VALVE switch – OFF
3. STARTER switch – Ensure starter is motoring engine until TOT stabilizes at normal temperature
4. Shut down helicopter
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Term
ENGINE OIL PRESSURE LOW, HIGH, OR FLUCTUATING |
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Definition
ENGINE OIL PRESSURE LOW, HIGH, OR FLUCTUATING
Indications:
ENG oil pressure below minimum
ENG oil pressure fluctuating abnormally
1. Engine oil pressure and temperature – Monitor.
2. Land as soon as possible.
ENG oil pressure above max or fluctuating abnormally
1. Engine oil pressure and Temperature - Monitor.
2. Land as soon as practical.
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Term
ENGINE OIL TEMPERATURE HIGH |
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Definition
ENGINE OIL TEMPERATURE HIGH
Indications:
Eng oil temp increasing above normal
Eng oil temp above maximum
1. Land as soon as practical.
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Term
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Definition
DRIVESHAFT FAILURE
Left yaw, decrease in NR, increase in NP, low rotor audio and light
1. Autorotative descent and landing
NOTE
To maintain tail rotor effectivness don't shutdown engine in FLT
2. Complete helicopter shutdown (EMER SHUTDOWN) after landing |
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Term
ENGINE FIRE DURING FLIGHT |
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Definition
ENGINE FIRE DURING FLIGHT
1. In-flight – Immediately enter autorotation
2. Throttle – Closed
3. FUEL VALVE switch – OFF
4. If time permits, L/R FUEL BOOST circuit breaker switches – OUT
5. Execute autorotative descent and landing
6. BATT switch – OFF |
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Term
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Definition
CABIN SMOKE OR FUMES
1. In-flight – Start descent
2. HEATER switch (if installed) – OFF
3. All vents – Open
4. Side windows – Open
If time and altitude permits:
5. Source – Attempt to identify and secure
6. If source is identified and smoke and/or fumes still persist – Land as soon as possible
7. If source is identified and smoke and/or fumes are cleared – Land as soon as practical |
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Term
CLUTCH FAILS TO DISENGAGE |
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Definition
CLUTCH FAILS TO DISENGAGE
Rotor RPM will decay with the engine RPM as the throttle is reduced when entering an autorotation. This will result in a total loss of autorotational capability.
1. Throttle - Open
2. Land as soon as Possible |
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Term
CLUTCH FAILS TO RE-ENGAGE |
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Definition
CLUTCH FAILS TO RE-ENGAGE
During recovery from an autorotation will be indicated by a decrease in NR as NP remains constant.
1. Autorotate
2. Emergency Shutdown |
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Term
LOSS OF HYDRAULIC PRESSURE
1 of 2 |
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Definition
LOSS OF HYDRAULIC PRESSURE
Indications:
Hydraulic System caution light on
Grinding noise from pump
Increased force required to move flight controls
Feedback may be evident during FLT control movement
Do not confuse HYD failure (all controls) with a FLT control failure (1 control). Leave HYD system switch off for duration of FLT. Don't exceed 45 degrees of bank.
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Term
LOSS OF HYDRAULIC PRESSURE
2 of 2
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Definition
LOSS OF HYDRAULIC PRESSURE
1. Reduce AIRSPEED to 60 – 80 KIAS
2. HYD SYSTEM circuit breaker – Out. If hydraulic power is not restored, push breaker in.
3. HYD SYS switch – HYD SYS OFF if hydraulic power is not restored.
4. Land as soon as practical.
5. A run-on landing at approx. 9 KIAS or effective translational lift speed (approximately 15 knots) is recommended. |
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Term
FLIGHT CONTROL ACTUATOR MALFUNCTION |
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Definition
FLIGHT CONTROL ACTUATOR MALFUNCTION
Indications:
Uncommanded FLT control movements
High FLT control forces to oppose the movement
Feedback only affect FLT control axis
FLT control forces normal in unaffected axis
1. Attitude – Maintain
2. HYD SYS switch – OFF
3. AIRSPEED – Set to 60 to 80 KIAS
4. Land as soon as possible as if hydraulics |
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Term
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Definition
GENERATOR FAILURE
Gen Fail Light, DC Loadmeter indicates 0%
1. GENERATOR FIELD and GENERATOR RESET circuit breakers – Check in
2. GEN Switch – RESET; then GEN
3. If power is not restored, place GEN switch to OFF
4. land as soon as practical
NOTE
With generator off, a 80% charged battery will operate left fuel boost pump for approx. 3hrs. For night ops, approx. 1hr
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Term
EXCESSIVE ELECTRICAL LOAD
WARNING |
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Definition
EXCESSIVE ELECTRICAL LOAD
WARNING
Prior to Batt depletion, altitude shall be reduce below 6000 FT PA
Indications:
DC load excessive load
Smoke or fumes
1. GEN switch – OFF.
2. BATT switch – OFF.
3. Left Fuel Boost CB - Check in
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Term
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Definition
FUEL TRANSFER FAILURE
Indication: At total FUEL QTY of approx. 86.3lbs and below, Fuel QTY in FWD cells remain constant
1. Determine FUEL QTY in forward cell
2. Subtract quantity of fuel trapped in forward cell from total to determine usable fuel remaining.
3. Plan landing accordingly |
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Term
LITTER DOOR OPEN
BAGGAGE DOOR |
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Definition
LITTER DOOR OPEN
BAGGAGE DOOR
Close door securely before FLT
If light illuminates during FLT, land as soon as practical. |
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Term
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Definition
ROTOR LOW RPM
Audio comes on below 90%(+/-3%) NR
Reduce collective
Ensure throttle is full open |
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Term
XMSN OIL PRESS CAUTION LIGHT ILLUMINATED |
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Definition
XMSN OIL PRESS CAUTION LIGHT ILLUMINATED
Transmission oil pressure (30 psi +-2 psi) is below minimum. Extinguishes at 36 psi
Reduce power
Verify fault with gage
Land as soon as possible
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Term
XMSN OIL TEMP CAUTION LIGHT ILLUMINATED |
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Definition
XMSN OIL TEMP CAUTION LIGHT ILLUMINATED
Transmission oil temp is at or above red line (At or above 110C +-5.5C).
Reduce PWR
Verify fault with gage
Land as soon as Possible |
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Term
ENGINE, T/R, or XMSN CHIP caution light illuminates in flight |
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Definition
ENGINE, T/R, or XMSN CHIP caution light illuminates in flight
Land as soon as possible
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Term
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Definition
FUEL FILTER
Airframe fuel filter in impending bypass
Land as soon as practical
Clean filter before next FLT |
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Term
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Definition
R or L FUEL PUMP
Boost pump assembly has failed
Descend below 6000FT Hp (PA)
LAND AS SOON AS PRACTICAL
If both pump assemblies have failed
Land as soon as POSSIBLE |
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Term
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Definition
FUEL LOW
Approximately 50-75 lbs (10 gals) remaining
Verify Fuel QTY
LAND AS SOON AS PRACTICAL
WARNING
Avoid uncoordinated flight as fuel starvation may occur
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Term
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Definition
A ir Worthiness
R egistration
R FM
O perations Manual (GOM)
W eight and balance
B riefing cards (7)
A FD
M EL
M aintenance Log
F lashlight (115 lumens)
F ire Extinguisher
P ubs |
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Term
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Definition
LANDING IN TREES
1. Select a landing area containing the least number of trees of minimum height
2. Decelerate to minimum forward speed to treetop level and descend vertically
3. Apply all remaining collective prior to main rotor contacting the trees |
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Term
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Definition
DITCHING-PWR ON
1. Doors-Open at a hvr
2. Passengers-Exit
3. HVR a safe distance away
4. Autorotate. Apply all remaining collective as the helicopter enters the water. Maintain a level attitude as the helicopter sinks and until it begins to roll. Apply cyclic in the direction of roll
5. Pilot- Exits when the M/R stops
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Term
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Definition
DITCHING - PWR OFF
1. Autorotate-Decelerate to MIN FWD A/S as the helicopter nears the water. Apply all remaining collective as the helicopter enters the water. Maintain a level attitude as the helicopter sinks and until it begins to roll. Apply cyclic in direction of roll.
2. Doors - Open as the helicopter enters the water.
3. Pilot and passengers - Exit when the main rotor stops. |
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Term
LIGHTNING STRIKE
&
IN-FLIGHT WIRE STRIKE |
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Definition
LIGHTNING STRIKE
&
IN-FLIGHT WIRE STRIKE
Land as soon as Possible
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