LIMITS and EPs Flashcards
Caution Definition
Explanatory information about an operating procedure, practice, or condition, etc. that may result in damage to equipment if not carefully observed or followed.
ENGINE LOW SIDE FAILURE
(#1/2 ENG SPEED LOW LIGHT)
- EMIF
ENGINE HIGH SPEED SHAFT FAIL
(#1/2 DRVSHAFT FAIL)
- EMIF
- PCL (MALFUNCTIONING ENGINE) - OFF
Max Sideward/Rearward Flight
35 kgs
Fuel Filter Bypass (Both)
or
Fuel Press Light (Both)
- Land ASAP
- APU Emergency Start Procedure - Perform
Operations >10k DA AoB Limit
30 degrees
Cabin Door Opening/Closing Max Airspeed
60 kts
1 and #2 Hyd Pump Fail
(#1 HYD PUMP, #2 HYD PUMP, #1 AND #2 HYD PUMP FAIL, AND B/U PUMP ON)
- Restrict flight control movement
- Land ASAP
Searchlight in position other than stowed max airspeed
160 kts
Land as soon as practicable
Extended flight not recommended. Landing site and duration of the flight at the discretion of PIC.
Minimum fuel on landing
600lbs
May / Need Not
Optional
Np Limits (Power Turbine)
<96: Avoid
96-105: Continuous
105-117: 20 sec
117-120: 12 sec
During engagement, avoid extended ops in the 20-40 and 60-75 range.
Abort Start Indications
- Ng does not reach 14% within 6sec of starter initiation
- No oil px within 30sec of starter initiation
- No light off within 30sec of PCL to IDLE
- ENG STARTER advisory out before 52%
- TGT likely to exceed 851c before IDLE
Abort Start EP
- PCL - OFF
- ENG IGNITION switch - OFF
- Starter - ENGAGE
Immediate Landing / Ditching
- Crew / Passengers - Alert
- Shoulder Harness - Lock
- APU Emergency Start Procedure - perform
- External Cargo/Stores/Fuel - Jettison/Dump, as reqd
- Searchlight - As reqd
- MAYDAY / IFF - Transmit/Emergency
- In the flare: Windows - Jettison, as reqd
After Landing - PCLs - OFF
- Rotor Brake - ON
- Copilot Collective - STOW
- Pilot HCU - STOW
After all violent motion stops - Egress
Loss of tail rotor control
- Collective / Airspeed - Adjust as reqd to control yaw
Max Operating DA
13k
External Engine Fire
(FIRE light)
1. Confirm Fire
2. EMIF
3. PCL (Affected Engine) - OFF
4. Eng T Handle - PULL
5. Fire Extinguisher Switch - MAIN (RSV as reqd or if ac pwr off)
If airborne and fire continues:
6. Land immediately
If fire appears extinguished:
7. Land ASAP
Dual EGI Failure
- Backup Instruments - SCAN, as reqd
- # 1 and #2 EGI PWR switches - OFF, then ON
Max Ground Taxi Speed
40 kgs
20 kgs if shimmy damper not installed
HYD System WARNING
(HYD warning light)
1. Land Immediately
Sloped terrain max rate of descent
360 FPM
Pri servo press caution max airspeed
125 kts
Loss of tail rotor drive (alt and airspeed sufficient to establish autorotation)
- PAC calls - “AUTO, AUTO, AUTO”
- Autorotation - ESTABLISH (Center tail rotor pedals)
- Drive Fail - Attempt to verify
- Immediate Landing/Ditching EP - PERFORM
- PCLs - OFF when directed (prior to the flare)
Hover turn limit
No greater than 30 degrees per second
Normal Ops AoB limit
45 degrees
Transmission Pressure Limit
20: MIN
20-30 : Precautionary
30-65: Normal (45-60 straight and level flight)
65-130: Precautionary
130: MAX
APU Emergency Start Procedure
- ECS Mode - OFF
- Air Source ECS/Start switch - APU
- Fuel Pump - APU Boost
- APU CTRL switch - ON
- APU GENERATOR switch - ON
Prohibited Maneuvers
Aerobatic Maneuvers
Intentional inducement of or approach into RBS
Practice full autorotations to the deck
Underwater Egress EP
- SEBD - DON
- Cord - DISCONNECT
- Windows - Jettison as reqd
- Place hand on known reference point
- Harness - Disconnect
- Exit helicopter
After Egress: - Swim clear of helicopter and inflate LPU
Smoke and Fumes Elimination
- Airspeed - Adjust as required
- Doors/Vents/Windows - Open
- Aircraft - Yaw as required
Internal Engine Fire
(If TGT looks like it will exceed 510c on shut down)
1. Starter - ENGAGE. Motor engine
MTS Uncommanded Lasing
- ACI Master Arm - Safe
- Laser select switch - Safe
If lasing continues: - FLIR BEZEL KEY - FLIR+ OFF - Select
Hellfire Missile Hangfire
If rocket motor ignites and aircraft yaws:
1. Adjust controls as reqd to maintain straight and level flight
1/2 Fuel Filter Bypass
or
#1/2 Fuel Press Caution
- Fuel selector (affected engine) - XFD (DIR if in XFD)
Dual Engine Torque (>80kias)
0-106: continuous
106-127: 10sec
127: max
Engine Torque Fluctuating or TGT Spiking/Fluctuations
If an engine instrument is spiking or fluctuating and inducing secondary indications on Np, Nr, and/or Ng:
1. EMIF
If fuel contamination is suspected:
2. Land ASAP
Compressor Stall
- EMIF
- PCL (Malfunctioning engine) - IDLE
PRI SERVO PRESS Caution AoB Limit
30 degrees