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following steps apply:
1. Affected Bleed Air Switch..................................................................................................OFF
2. Affected Bleed Air Circuit Breaker ..............................................................................CHECK
NOTE: If the circuit breaker is popped, wait 5 minutes to allow for circuit cooling prior to
resetting the circuit breaker.
For SN 1000 thru 1201 without ASC 298
If the right system circuit breaker is popped, the ISOLATION VLV OPEN message will be
present on EICAS. Even though the message is present, the isolation valve is closed.
NOTE: The isolation valve must be manually opened from the tail compartment in order to start
the left engine.
1. Right Bleed Switch .............................................................................................................OFF
2. Right Bleed Air Circuit Breaker .................................................................ATTEMPT RESET
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
3-108 FAA APPROVED
31 May 2000
If CB resets:
1. Isolation Valve .................................................................................................................OPEN
2. Descend to 41,000 ft. or below.
3. Avoid flight into known icing conditions.
If CB will not reset:
1. Right ECS Pack Switch ......................................................................................................OFF
2. Descend to 41,000 ft. or below.
3. Avoid flight into known icing conditions.
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
FAA APPROVED 3-109
31 May 2000
For all other failure indications:
If the affected system circuit breaker is not popped, pull and reset the circuit breaker.
If resetting the circuit breaker solves the problem, continue flight in normal configuration.
If resetting the circuit breaker does not solve problem or if circuit breaker does not reset:
For Left Bleed Air System:
1. Left Bleed Air Switch .........................................................................................................OFF
2. Isolation Valve .................................................................................................................OPEN
3. Maintain 41,000 ft. or below for remainder of flight.
4. Avoid flight into known icing conditions.
For Right Bleed Air System:
1. Right Bleed Air Switch.......................................................................................................OFF
2. Isolation Valve .................................................................................................................OPEN
3. Maintain 41,000 ft. or below for remainder of flight.
4. Avoid flight into known icing conditions.
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
3-110 FAA APPROVED
31 May 2000
3-24-00: THRUST REVERSER SYSTEM
3-24-20: Thrust Reverser Locking Procedure:
NOTE: Utilize this procedure when a T/R is inadvertently deployed during engine shutdown. If
a malfunction is suspected, refer to GIV Maintenance Manual, Chapter 78, for T/R
lockdown information.
1. Open Warning Lights Power No. 4 (left T/R unlock) circuit breaker or Warning Lights
Power No. 8 (Right T/R Unlock) circuit breaker. Affected T/R unlock light should
extinguish.
CAUTION: OBSERVE STARTER DUTY CYCLE.
CAUTION: DO NOT ATTEMPT TO START ENGINE IF T/R DOORS ARE NOT
ENGAGED BY THE SECONDARY LOCK LATCH. PERFORM NEXT STEP
IF T/R DOORS ARE NOT ENGAGED.
2. With reverse thrust lever in stow position, perform engine crank cycle. T/R doors will
engage secondary lock latch.
NOTE: Engine crank cycle will not lock T/R actuator.
3. With reverse thrust lever in stow position, perform normal engine start.
4. Close circuit breaker(s) after engine reaches idle. T/R unlock and deploy lights should be
extinguished.
NOTE: As an alternate method to the engine crank cycle, the T/R doors may be brought through
secondary lock latch by:
1. Remove electrical and hydraulic power from airplane.
2. Cycle all flight controls to remove residual hydraulic pressure from systems.
3. Apply hand pressure to lower door until secondary lock latch engages T/R doors.
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
FAA APPROVED 3A-1
31 May 2000
AMBER CAUTION MESSAGES
CAS INDICATION CAUSE CORRECTIVE ACTION
L-R AC POWER FAIL AC output from converter
has dropped off line
Check engine idle speed. Turn
ELECTRIC MASTER, LEFT or RIGHT
　
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