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4. Airspeed......................................................................................................... 250 KCAS MAX
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
3-42 FAA APPROVED
31 May 2000
5. BTMS ......................................................................................................................MONITOR
NOTE: Landing gear should remain extended for minimum of ten (10) minutes after the BTMS
OVHT light is extinguished. Brake temperature(s) should be monitored to ensure
decreasing trend.
6. Airspeed......................................................................................................... 225 KCAS MAX
7. Landing Gear ...........................................................................................................RETRACT
8. BTMS/OVHT Light.......................................................................................CHECKED/OUT
NOTE: An inspection of overheated wheels, tires, brakes, and wheel speed sensors should be
accomplished before next flight. See Appendix C for Brake Kinetic Energy and Brake
Cooling chart data.
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
FAA APPROVED 3-43
31 May 2000
3-07-00: ELECTRICAL POWER SYSTEM
3-07-40: Alternator/Converter Failure - Single:
With one (1) Alternator/Converter inoperative, monitor and limit loads to less than 100% DC and
100% AC. This can be accomplished by switching off equipment as necessary. Failure of
Alternator/Converter will be indicated by L AC and DC POWER FAIL, or R AC and DC
POWER FAIL messages, or abnormal meter readings.
Converters are protected by over/under voltage and over/under frequency logic. When limits are
exceeded, that converter will trip OFF and automatic bus transfer to a good power source will
occur. Bus transfer indication will be on the EPMP panel.
1. Appropriate Converter AC and DC Loads/Voltage......................................................CHECK
2. Electric Master LEFT or RIGHT Power.......................... OFF, wait ten (10) seconds then ON
If voltage is produced, automatic transfer back to this source will occur. If voltage is not
produced or reading is unusual, or if converter trips off again:
3. Electric Master LEFT or RIGHT Power......................................OFF (for remainder of flight)
If below 15,000 ft., it is recommended that APU be started as source of supplemental electrical
power. See APU IN-FLIGHT OPERATION - ALTERNATE ELECTRICAL POWER
SOURCE, this Section.
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
3-44 FAA APPROVED
31 May 2000
Failure of a portion of a converter may be indicated by one or more failure messages as follows:
L AC POWER FAIL, L DC POWER FAIL, R AC POWER FAIL, or R DC POWER FAIL.
If any one of these failure messages illuminate, proceed as follows:
1. Appropriate Converter AC and DC Loads/Voltage......................................................CHECK
2. Electric Master LEFT or RIGHT Power................................OFF, wait ten (10) sec., then ON
If voltage is produced, automatic transfer back to this source will occur. If DC voltage is not
produced and L-R DC POWER FAIL message remains, converter operation may be continued.
If AC voltage is not produced and L-R AC POWER FAIL message remains, turn converter OFF.
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
FAA APPROVED 3-45
31 May 2000
3-07-50: Electrical Load Warning System (ELWS):
In the event APU electrical load is observed in low amber range, proceed as follows:
1. CABIN MASTER................................................................................................................ ON
If condition persists:
2. GALLEY MASTER ............................................................................................................ ON
In the event APU electrical load is observed in high amber range, proceed as follows:
1. GALLEY MASTER ...........................................................................................................OFF
If condition persists:
2. CABIN MASTER...............................................................................................................OFF
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
3-46 FAA APPROVED
13 September 2000
3-07-60: Flight With One Electrical System Inoperative - Secondary Failures Using ELWS
Procedures or With ASC 420 and SN 1430 and Subs
APU Alternator Failure or APU Flame Out
1. Essential AC and DC Buses will automatically transfer to operative converter.
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湾4飞机飞行手册AFM Gulfstream IV AIRPLANE FLIGHT MANUAL 1(61)
