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If warning occurs in flight:
1. Select Applied Brake Pressure Display on DU 4.
2. Hydraulic Pressures.......................................................................................................CHECK
If combined pressure is normal:
3. Auxiliary Hydraulic Pump ..................................................................................................OFF
4. Anti-Skid Switch ................................................................................................................OFF
5. Brakes ............................................................................................................................APPLY
If applied brake pressure indicates normal, the message was false. Proceed with step 6, 9 and
10.
6. Auxiliary Hydraulic Pump...........................................................................................ARMED
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
FAA APPROVED 3-35
31 May 2000
If combined system has failed:
7. Auxiliary Hydraulic Pump....................................................................................ARMED/ON
8. Brakes ............................................................................................................................APPLY
If applied brake pressure indicates normal, refer to Auxiliary Braking Procedure, this Section.
9. Anti-Skid Switch ................................................................................................................. ON
10. Circuit Breakers (Inbd Anti-Skid, Outbd Anti-Skid)............................................................. IN
If warning occurs during landing:
11. Park/Emergency Brake ....................................................................................AS REQUIRED
Refer to Emergency Braking Procedure, Section 4.
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
3-36 FAA APPROVED
31 May 2000
3-06-30: Brake Maintenance Required Message (HMAB):
FOR AIRPLANES SN 1183, 1214 AND SUBS
A wheel speed miscompare lasting more than five (5) seconds will illuminate the Brake
Maintenance Required message.
If the message occurs in flight, investigate after landing. This message may appear if the landing
gear is left down after takeoff and there is a difference in wheel spindown rates.
If message occurs on the ground, limited troubleshooting can be accomplished by performing an
Anti-Skid test at a speed of 10 knots or less.
ON GROUND ONLY
If the Anti-Skid Fail message illuminates during the test, a fault exists which can be isolated by
performing a system test on the Skid Control Box (SCB).
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
FAA APPROVED 3-37
31 May 2000
3-06-40: Brake Pedal Message (Brake-By-Wire):
An inoperative or malfunctioning brake pedal transducer is indicated by the BRAKE PEDAL
amber message illuminated on EICAS.
Use the following procedure for fault isolation of the brake pedals:
1. ANTI-SKID ...........................................................................................................CHECK ON
2. Select Applied Brake Pressure Display on DU 4.
3. If Airborne BRAKE NUTCRKR ORIDE Switch ................................. DEPRESS and HOLD
for ten (10) seconds and continue to hold while performing Step 4.
4. DEPRESS brake pedals individually and check applied brake pressure.
NOTE: A malfunctioning brake pedal is indicated by zero (0) or lower than normal brake
pressure.
5. BRAKE NUTCRKR ORIDE Switch .......................................................................RELEASE
6. DO NOT use malfunctioning brake pedal(s).
7. If no brake pressure is available from any pedal, see EMERGENCY BRAKES, Section 4.
GULFSTREAM AEROSPACE
GIV AIRPLANE FLIGHT MANUAL
SECTION 3
ABNORMAL
PROCEDURES
3-38 FAA APPROVED
31 May 2000
3-06-50: Multiple Brake Failure Message (Brake-By-Wire):
In case of multiple failure messages or if brake system status is unknown:
1. Attempt RESET followed by Brake BITE at Brake ECU. Allow thirty (30) seconds after the
BITE for failure to recur.
2. ANTI-SKID Switch ...............................................................................................CHECK ON
3. Select Applied Brake Pressure Display on DU 4.
4. If airborne, BRAKE NUTCRKR ORIDE Switch.................................. DEPRESS and HOLD
for ten (10) seconds and continue to hold while performing Step 5.
5. Depress brake pedals individually (pilot or copilot) and verify applied brake pressure is
appropriate for pedal deflection.
6. BRAKE NUTCRKR ORIDE Switch .......................................................................RELEASE
　
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