Chapter 9 - Emergency Procedures Flashcards
[WARNING] In the event of a procedural difference between the written and displayed EMER procedure, the steps _________ take precedence.
in this chapter
During an emergency, what is the most important single consideration?
helicopter control
Every ____ lbs. of jettisoned wing stores equates to __ torque reduction.
200 lbs = 1% TQ
When continued flight is in question, the immediate corrective action should be to ___________.
Adjust collective to maintain Nr within limits and jettisoning of the aircraft wing stores.
What should be reset after each malfunction? Why?
MSTR WARN and MSTR CAUT buttons. Subsequent malfunctions
Whenever possible, check the _________ against the _________ to __________.
caution or advisory message <> appropriate MPD page <> verify that a malfunction has occurred.
During an emergency, and when time permits, the crew should attempt to ___________.
1) transmit a MAYDAY call
2) select the XPNDR button on the emergency panel
3) lock shoulder harnesses
Define LAND WITHOUT DELAY
A landing in which the primary consideration is continued control of the aircraft and survival of the occupants. It is meant to be more urgent than Land as Soon as Possible
Define LAND AS SOON AS POSSIBLE
Landing at the nearest suitable landing area (i.e. an open field) without delay. The primary consideration is to ensure the survival of the occupants.
Define LAND AS SOON AS PRACTICABLE
Landing at a suitable landing area. The primary consideration is the urgency of the emergency.
Define AUTOROTATE
Adjusting the flight controls as necessary to establish an autorotational descent and landing.
After shutdown, what should you do if TGT rises above ____*C or if there is evidence as indicated in a rapid rise in TGT?
540*C
place the ENG START switch in IGN ORIDE until TGT is below 540*C
Define EMER ENG SHUTDOWN
An engine shutdown without delay
EMER ENG SHUTDOWN
(1) POWER lever (affected engine) - OFF
EMER ENG SHUTDOWN is not an immediate action item in flight unless _______.
a fire exists
What are the two methods of WING STORES JETTISON?
Emergency and Selective
After a malfunction of equipment has occurred, _____ have been taken and the helicopter is ____, an entry will be made in the ____ Section of DA FORM ____ describing the malfunction. ___ and ____ operations will be ___ until _____.
appropriate emergency actions on the ground REMARKS 2408-13-1 Ground and Flight discontinued until corrective action has been taken.
If the aircraft has rolled on its side and fuel vapors have gathered on the ground - _____ can occur if ____ is used.
an explosion
canopy jettison
________ can cause the canopy jettison actuator to jam.
What should be done if the canopy jettison doesn’t work?
continuing to twist while pushing
use the personal survival knife
If emergency egress is required before the rotor blades have stopped, ensure ______ and _______.
MSTR IGN - BATT
cyclic remains centered
EMERGENCY EGRESS
Helmet Visors - Down
Area around helicopter - Clear of personnel
CANOPY JETTISON handle - Turn 90*, release, then push to jettison canopy
Debris from the canopy jettison may be expelled ___ outward.
50 feet
[NOTE] Only the crew station arming the STORES JETTISON panel can ______. Once armed, ______.
disarm it.
either crewstation can activate jettison
[WARNING] Ensure aircraft controls are configured for _____ prior to pressing the FIRE pushbutton.
single engine operation
Whether illuminated or not, pressing a fire pushbutton will __________.
shut off fuel to the selected engine or APU
What does the MASTER ZEROIZE switch NOT zeroize?
any of the ASE User Data Module (UDM) info
On the EMERGENCY panel, what does the zeroize switch actually zeroize?
Mission Data (COMSEC variables, FM Hopsets, Nonvolatile Memory, etc.)
What does the GUARD button do on the EMERGENCY panel?
Tunes UHF to guard frequency
Auto-RTS to UHF
What does the XPNDR button on the Emergency panel do?
Squawks code 7700
auto-BFT MAYDAY
The collective should not be reduced when an engine fails and the aircraft is hovering below ___ feet.
15 feet
During autorotation, the desired airspeed is _______.
Above 70-80 KTAS - ______ increases. Below 70 KTAS, _____ but ____.
77-107 KTAS
rate of descent and glide distance increases
rate of descent increases, glide distance decreases
When executing an autorotation, use aft cyclic to decelerate at ______ AGL.
75 to 125 feet AGL
INDICATION: rapid drop in Ng, Np, torque, TGT, oil PSI and the symbolic TQ value on MPD/HMD displays flashing
ENGINE FAILURE
If having to perform a hovering autorotation, what is the most important consideration?
maintaining a level attitude
The aircrew should not engage any hold modes when operating ____________.
near the dual engine limiter setting
DUAL ENG FAILURE
(1) Autorotate
(2) Chop Button - Reset only if an ENG chop warning message is present. Reset may be accomplished by either crewmember
(3) Wing Stores Jettison - As Appropriate
When should an ENG restart in flight be attempted?
What is the danger?
If it can be determined that it is reasonably safe.
Malfunctioning XFEED causes remaining ENG to fail
Aborted ENG starts may cause fuel to collect in the ENG nacelle. Subsequent starts may be attempted only after __________.
the nacelle is inspected for fuel
What are the abort start criteria?
Within 45 seconds of PWR LVR to idle, no TGT / Np / Oil PSI rise. If ENG START advisory removed prior to 52% Ng or apparent TGT will exceed 851*C prior to 63% Ng
ABORT START
(1) POWER lever - OFF
(2) ENG START switch - IGN ORIDE for 30 seconds and TGT is below 540*C
SINGLE ENGINE FAILURE
(1) Airspeed - Adjust as Appropriate
(2) Wing Stores Jettison - As Appropriate
(3) LAND AS SOON AS PRACTICABLE
MIN Rate of Descent Airspeed =
MAX Glide Distance Airspeed =
77 KTAS
107 KTAS
ENG OVERSPEED - Np FAILED HIGH
(1) Collective - Adjust to maintain Nr within limits
If condition persists: (2) POWER lever (affected ENG) - Retard to equalize torque
(3) LAND AS SOON AS PRACTICABLE
LOW RPM ROTOR - Np FAILED LOW
(1) Collective - Adjust to maintain Nr within limits
If condition persists: (2) POWER lever (aff eng) - LOCKOUT and then retard to equalize torque output of both engines. (3) If manual control is not possible: (4) POWER lever (aff eng) - IDLE. (5) Land as soon as pract
What does advancing the POWER lever to LOCKOUT do?
Locks out the DECU and disables the TGT limiting for that engine
INDICATION: engine operation remains normal. Ng indication lost - MSTR WARN light and ENG OUT voice & UFD messages.
complete failure of an alternator
What are the three windings on the alternator?
ignition power
Ng speed indication
DECU
INDICATION: loud bang or popping noise, possible aircraft yaw, rapid increase in TGT and fluctuations in Ng, TQ, and Np
ENGINE COMPRESSOR STALL
ENGINE COMPRESSOR STALL
(1) Collective - Reduce. If condition persists: (2) POWER lever (aff eng) - Retard. If TGT decreases and there is no further evidence of a stall: (3) POWER lever (aff eng) - FLY. If stall condition returns: (4) POWER lever (aff eng) - IDLE. (5) Land as soon as practicable
During TAIL ROTOR fixed pitch or lost thrust situations, ________ to reduce gross weight, drag, and improve air flow over the vertical fin.
jettison wing stores
LOSS OF T/R THRUST - CON’T FLIGHT POSSIBLE
(1) Airspeed - 100 KTAS min (until 10 to 20 ft above touchdown). (2) Wing Stores Jettison - As appropriate. (3) POWER levers - Retard as necessary (5 to 10 ft above touchdown)
LOSS OF T/R THRUST - CON’T FLIGHT NOT POSSIBLE
(1) Collective reduce (compromise between rate of turn and rate of descent). (2) Wing Stores Jettison - As appropriate. (3) Minimize rate of descent (10 to 20 ft above touchdown). (4) POWER levers - OFF (5 to 10 ft above touchdown)
INDICATIONS: erratic TQ indication on affected engine, complete loss of TQ indication on affected engine, Np of affected engine exceeding Nr
MAIN XMSN INPUT DRIVE CLUTCH FAILURE
XMSN INPUT DRIVE CLUTCH FAILURE (IN FLIGHT)
Np (affected ENG) is below Nr.
CLUTCH IS DISENGAGED
(1) POWER lever (aff eng) - IDLE. (2) EMER ENG SHUTDOWN (aff eng). (3) Land as soon as practicable
XMSN INPUT DRIVE CLUTCH FAILURE (IN FLIGHT)
Np (affected ENG) does not drop below below Nr.
CLUTCH FAILED TO DISENGAGE
1) POWER lever (aff eng) - IDLE. (2) Land as soon as possible. (3) EMER ENG(S) SHUTDOWN (both engs simultaneously
XMSN INPUT DRIVE CLUTCH FAILURE (ON GROUND)
with indications that a clutch has failed to engage
(1) EMER ENG SHUTDOWN (aff eng only). (2) Check Ng is less than 10% (aff eng). (3) Normal engine shutdown - Perform