Page 6
Sub-section - 4.05
ABNORMAL PROCEDURES
FAA Approved
Original Issue: Feb 28, 2006
Hawker 850XP Pro Line 21 Airplane Flight Manual
WINDMILL RELIGHT
Airspeed and altitude ................................................ Within envelope shown in
Figure 4.05.1.
N
1
RPM...................................................................... Indicating
N
2
RPM...................................................................... 10% or more
HP COCK (affected engine) ...................................... Close
LP COCK (affected engine) ....................................... OPEN
ENG ANTICE (affected engine) ................................. OFF
Fuel pump (affected engine) ...................................... ON
NOTE: It is recommended that windmill relights should not be attempted with the engine
computer inoperative.
ENG CMPTR (affected engine) ................................. Check ON
ENG SYNC ................................................................ OFF
MAIN AIR VLV (affected engine) ............................... CLOSE
ENG IGNITION (affected engine) .............................. ON
HP COCK (affected engine) ...................................... OPEN
NOTE: During relight, there may be a slow or erratic indication of fuel flow.
ITT ............................................................................ Monitor
If Relight Unsuccessful (N
1
and N
2
RPM do not increase within 10 seconds) or
If ITT Rapidly Approaches 978° C or
If No Oil Pressure Indicated Within 10 Seconds of N
1
and N
2
RPM Indication.
HP COCK (affected engine) .......................................Close
CAUTION: IF RELIGHT IS UNSUCCESSFUL, WAIT A MINIMUM OF 10 SECONDS BEFORE
MAKING ANOTHER ATTEMPT.
After Start
ENG IGNITION (affected engine)...............................OFF
GEN (affected engine)................................................Check on-line
BUS TIE (if open) .......................................................CLOSE
Engine indications ......................................................Normal
MAIN AIR VLV (affected engine) ................................OPEN
Thrust lever (affected engine).....................................Set as required
ALTERNATOR (affected engine) ................................ON
ENG SYNC ...............................................................As required
WING FUEL/ X-FEED/TRANSFER lever ...................WING FUEL - when fuel balanced
For Training Purposes Only