sábado, 7 de fevereiro de 2015

TransAsia Flight GE-235 ATR-72-600 No Altitude, No Time for Recovering Straight Horizontal Flight



Flight Crew Operations Manual
ENGINE FLAME OUT AT TAKE OFF

ALERT
An engine flame out may be recognized by:
1 - Sudden dissymmetry
2 - Torque decrease
3 - Rapid Inter Turbine Temperature decrease

PROCEDURE
UPTRIM ............................................................... CHECK
AUTOFEATHER .................................................... CHECK
BLEED FAULT LIGHT ............................................  CHECK LIT

At Acceleration Altitude
Power Lever ........................................................  Flight Idle
Condition Lever ...................... ………………………….  FEATHERED then FUEL SHUT OFF
BLEED ..................................................................  OFF if necessary

If no damage suspected

ENGINE RESTART IN FLIGHT PROCEDURE ..........  APPLY

If unsuccessful:

SINGLE ENGINE OPERATION PROCEDURE ........... APPLY

ENGINE RESTART IN FLIGHT

PROCEDURE
FUEL SUPPLY ......................................................... CHECK
CONDITION LEVER (IT IS THE FUEL LEVER) ............ FUEL SHUT OFF
POWER LEVER ................................. …………………..  FLIGHT IDLE

CAUTION: After Automatic Take off Power Control System (ATPCS) sequence
                   POWER MANAGEMENT rotary selector must be set to MAXIMUM CONTINOUS
                   position before engine restart in order to cancel propeller feathering.

ENGINE START rotary selector ................. ………….  START A & B
ENGINE ELECTRONIC CONTROL push button ........ RESET is necessary or DESELECT if FAULT persist
START push-button ...............................................  ON
AT 10% NH (High Pressure Spool Rotation Speed):
CONDITION LEVER .................................................  FEATHERED
RELIGHT .................................................................  MONITOR
CONDITION LEVER .................................................  AUTO
POWER LEVER ........................................................  ADJUST TO OTHER ENGINE
ENGINE START rotary selector ...............................  OFF/START ABORT
SYSTEMS affected ..................................................  RESTORE

Comments
- Engine relighting in flight is only guaranteed within the envelope and always necessitates starter    assistance
- The power may be restored immediately after relighting providing TOIL > O°C.
- Should the engine fail to light up within 10 seconds, select fuel to shut off, the ignition OFF and allow engine to be ventilated for 30 seconds minimum prior to making another attempt.
 
ENGINE FLAME OUT

Comments
- Shut down the engine is no immediate relight
- The causes of engine flame out can generally be divided into two categories:
  - External causes such as icing, very heavy turbulence, fuel mismanagement.
    Theses causes, which may affect both engines can generally be easy determined and an immediate relight can be attempt.
  - Internal causes which as engine stall or fails usually affect a single engine and are not so easily determined, In these cases, the engine is shut down then the cause of the flame out investigated. If it cannot be positively determined what caused the flame out, the need for engine restart should be evaluated against the risk of further engine damage or fire may result from aa restart attempt.
- If damage is suspected, as precautionary measure, the FIRE handle is pulled.

 - If neither engine starts
  CONDITION LEVER both ...................................... .. FEATHERED then FUEL SHUT OFF
  ENGINE START rotary selector .............................. OFF/START ABORT
  FUEL PUMPS .................................................. ……..OFF
  FORCED LANDING or DITCHING PROCEDURE ........ APPLY

   CAUTION: Do not select AVIONICS VENTILATION EXHAUST MODE to OVERBOARD