Emergency AC Bus Fault and AC/DC Reset
G500 Abnormal Procedures
This is a work in progress
AFM Procedure
[AFM, §03-04-40]
Corrective Action
- 1. AC Power Synoptic Page . . . Check
- DC Power Synoptic Page . . . Check
- AC / DC RESET Switch . . . PRESS and RELEASE
- If the Emergency AC Bus is powered:
- Go to Step 6.
- If the Emergency AC BUS is not powered:
- Go to Step 8.
- If the L ESS DC Bus is on battery power:
- Go to Step 8.
- If the L ESS DC Bus is not on battery power:
- The procedure is complete.
- Slip Skid Indicator . . . Centered
- RAT . . . Deploy
- RAT GEN . . . Verify On
- Airplane . . . Land as soon as practicable
- EMERGENCY POWER . . . ARM
- Final Approach
- FLAPS . . . 20°
- RAT GEN . . . Off (above 200 KCAS)
- LANDING GEAR . . . DOWN
- FLAPS . . . 39°
- If a go-around is necessary:
NOTE
The AC / DC RESET switch should not be pressed more than one time.
NOTE
The RAT will power the Emergency AC, L ESS DC and R ESS DC busses.
NOTE
RAT GEN will drop off line below approximately 200 KCAS. To prevent the RAT GEN from repeatedly shedding the load and then resupplying electrical power, the RAT GEN must be selected OFF prior to decelerating to less than 200 KCAS.
(1) Once at greater than 200 KCAS:
(a) RAT GEN . . . ON
References
Gulfstream GVII-G500 Airplane Flight Manual, Revision 1, August 31, 2018