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Functional Checks

G500 Normal Procedures

The good news is that the pesky ground spoiler check of Gulfstreams past is gone. The bad news is there are still a few functional checks you really ought to know. Here they are.


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Photo: "Normal procedures" sketch

Click photo for a larger image

Initial Power-up Flow — this isn't really a functional check, but you should have it memorized.

Fire Test — this is the test prior to starting the APU.

Master Test — this is the test after APU is up and running.

FCS Trim Checks — this is the check after APU is up and running.

Flight Controls Check — this is the check after engine start.

Initial Power-up Flow

Arm emergency power, check emergency lights, 2 sfd, 2 tsc; main batteries and FCS batteries on, check 23V UPS, 24 V EBHA, 2 OHPTS, 2 DU, 5 TSCs, 3 green gear lights; do fire test; APU Master ON, check electrical panel, bleed air panel, start APU, cabin galley masters on, emergency power arm.

[AFM, §02-02-10]

  1. CBs . . . Check

  2. EMERGENCY POWER . . . ARM

  3. Verify the following are powered:

    • Emergency Lighting

    • Standby Flight Displays (2)

    • TSC 2 and TSC 3

    It takes a few seconds for the displays to come up, so use that time to look back for evidence the emergency lighting is up, then forward to see two displays on the glare shield and two more near the throttle quadrant.

  4. MAIN BATTERIES (Left and Right) ON . . . Verify the following are powered:

    • OHPTS 1 and OHPTS 2

    • DU1 and DU4

    • TSC 1 thru TSC 5

    • LANDING GEAR Lights – 3 Green

    "Two, two, three, and five." (Looking from the overhead panel to the DU panel to the panel below that and then to all the TSCs.)

    NOTE

    Following the selection of the flight controls EBHA and UPS battery switches to ON, the FCS will perform a System Power-On Self Test (SPOST), which requires approximately 45 seconds. If electrical power to the FCC channels is interrupted while the SPOST is in progress, FCS No Dispatch (caution) CAS message, FCC Fail (caution) CAS message, or FCC Fail (advisory) CAS messages may display and not extinguish. If this occurs it will be necessary to power down the airplane, wait at least one minute, then reapply power and perform procedures in the normal sequence.

  5. FCS BATTERIES . . . ON

  6. NOTE

    If the EBHA voltage is between 22-24 Vdc or UPS voltage is between 22-23 Vdc, it will be necessary to turn off the associated battery and charge the associated battery for 15 minutes while operating on external ac power, APU generator, or engine generator prior to selecting EBHA or UPS battery switch ON. Refer to the Maintenance Manual If the EBHA / UPS battery voltage is less than 22 Vdc.

    images

    Photo: OHPTS Fire test, PAS, p. 4-78

    Click photo for a larger image

  7. VOLTAGE . . . Check

  8. EBHA BATT: 24 Vdc minimum

    UPS BATT: 23 Vdc minimum

    This should be the OHPTS that comes up on the left by default. As for these voltages, one is 23 and one is 24, which? The one with three letters is 23, the one with four letters is 24.

    NOTE

    If the airplane has been exposed to a prolonged or overnight cold soak of temperatures lower than -20°C (-4°F), and the ambient temperature is -20°C (-4°F) or colder at the time of APU start, the batteries should be warmed by external means to raise battery temperature prior to attempting APU start. Use an external AC cart, if available, to charge and warm batteries prior to APU start.

  9. FIRE TEST . . . Select and HOLD

  10. While you are pressing and holding, you are looking for 1 overhead light, 2 master warning lights, 4 CAS, and 4 lights below. Some people count 13 items, counting each L-R CAS line as two items.

    [AOM, §01-01-80]

    1. FIRE TEST . . . PRESS and HOLD

    2. Verify the following indications are present:

      • Overhead APU "Fire" light illuminated

      • Master warning light (2)

      • APU FIRE (U) (warning) CAS message

      • >APU FAIL (caution) CAS message

      • L-R Engine Core Fire (warning) CAS message

      • L-R Engine Fire (warning) CAS message

      • Fire handle lights illuminated (2)

      • Fuel control fire light illuminated (2)

    3. FIRE TEST . . . RELEASE

  11. APU MASTER . . . ON

    • APU Ready Light: Verify On

    • With the APU Master on, the "Fire Test" button goes away.

  12. ELECTRICAL POWER CONTROL Panel . . . Set

  13. images

    Photo: Electrical control panel, PAS, p. 4-25

    Click photo for a larger image

    1. RAT GEN . . . ON

    2. GEN (Left and Right) . . . Selected In

    3. APU GEN . . . ON

    4. BUS TIE (Left and Right) . . . AUTO

    5. EXT PWR . . . As required

    6. (1) IRS As required

    The generators (RAT, L GEN, APU GEN, R GEN) should all be in, the RAT is dark, the rest (RESET, EXT PWR, L BUS TIE, and R BUS TIE) should all be out. The IRS normal come on with APU power, so if you are using EXT PWR and want an IRS, it is up to you to turn it on.

  14. BLEED AIR Panel . . . Set

    1. ENG (Left and Right) . . . Selected In

    2. APU . . . ON

    3. Isolation Valve . . . Closed (Out)

  15. APU START

  16. NOTE

    When operating in high ambient temperatures (greater than 35°C / 95°F), cabin temperature can be reduced by selecting ECS Mode to Manual and Cockpit / Cabin Temps to Minimum. To expedite cooling the aircraft, lower the window shades, close the MED, and close the external baggage door.

  17. CABIN/GALLEY / 60 Hz MASTERS . . . ON

  18. EMERGENCY POWER . . . ARM

  19. If you were using a flow, this would be a good time to move to the checklist.

Fire Test

While you are pressing and holding, you are looking for 1 overhead light, 2 master warning lights, 4 CAS, and 4 lights below. Some people count 13 items, counting each L-R CAS line as two items.

AOM, §01-01-80: Fire Test

  1. FIRE TEST PRESS and HOLD

  2. Verify the following indications are present:

    • Overhead APU “Fire” Light illuminated

    • Master Warning Light (2)

    • APU Fire (U) (warning) CAS message

    • >APU Fail (caution) CAS message

    • L-R Engine Core Fire (warning) CAS message

    • L-R Engine Fire (warning) CAS message

    • Fire Handle Lights illuminated (2)

    • Fuel Control Fire Lights illuminated (2)

  3. FIRE TEST RELEASE

Master Test

You can find this test explained in the AOM, §01-01-120, Functional Checks. You are looking for four red, five amber, and one blue CAS messages. Note that your probably have one or two "Fwd-Aft Lav Smoke as shown on the PAS but not the AOM. In the simulator there are no Lav line(s) so you end up with 13 items again, counting each L-R item as two. You are also looking for all the annunciator lights that didn't come one with the Fire test as well as the passenger oxygen on light to illuminate.

AOM, §01-01-120

  1. Master Test combines four tests that can be run separately as well.

    • Annunciator (Ann Test)

    • Smoke Detect (Smoke Detect)

    • Passenger Oxygen

    • Equipment Overheat

  2. Master Test Select

  3. Verify the following indications are present:

    • Annunciator Lights illuminated

    • Passenger Oxygen On light illuminated

    • Baggage Smoke (warning) CAS message

    • L-R Pylon Hot (warning) CAS message

    • L-R Aft Floor Hot (warning) CAS message

    • Aft Equipment Hot (warning) CAS message

    • L-R EER Hot (caution) CAS message

    • Aft Baggage EER Hot (caution) CAS message

    • Fwd Floor Area Hot (caution) CAS message

    • Fwd Baggage EER Hot (caution) CAS message

    • Passenger Oxygen On (caution) CAS message

    • Bag Smoke Det Fault (advisory) CAS message

  4. Master Test De-select

FCS Trim Checks

Left seat pilot moves stick trim switch aft then forward, verifies movement, presses AP DISC button, verifies trim stops. Moves both backup pitch switches, verifies movement. Moves single backup pitch trim switches, verifies no movement. Pilot moves aileron trim 3 seconds left (till tone), 3 seconds right (till tone). Pilot moves yaw trim left, then right until tone. Copilot repeats stick trim switches.

AOM, §01-01-70: FCS Trim Checks

  1. Primary and Backup Pitch Trim

    1. NOTE

      Pitch trim does not need to be actuated through full range of motion. The FCS Test adequately tests the pitch trim range of motion. FCS Trim Switch Timeout (advisory) CAS message will be posted if the control stick trim switch is held for longer than 3 seconds.

    2. Hold control stick trim switch both aft and forward and verify pitch trim moves up and down.

    3. While adjusting pitch trim using control stick trim switch, press the AP DISC button on the control stick and confirm trim movement ceases.

    4. Using both BACKUP pitch trim switches, verify pitch trim moves.

    5. Attempt to adjust pitch trim with single BACKUP pitch trim switch and verify pitch trim does not change.

    6. Repeat Step 1.a. and Step 1.b. using copilot’s control stick.

  2. Roll Trim

    1. Hold control stick trim switch left and right and verify roll trim moves accordingly.

    2. Repeat Step 2.a. using copilot’s control stick.

  3. Yaw Trim

    1. Hold yaw trim knob left and verify yaw trim indication moves left. Hold yaw trim knob right until Yaw Trim Centered (advisory) CAS message is displayed.

Flight Controls Check

Surfaces faired, speed brake extend, stick left/right, speed brake retract, stick left/right, stick release, stick full forward/aft, stick release, nose wheel steering off, rudder left/right, rudder release, surfaces faired.

AOM, §01-01-90

  1. FCS Surfaces . . . Confirm faired/stowed except for flaps (optional) on FLT CNTRLS synoptic display

  2. SPEED BRAKE . . . Extend

  3. Spoiler Panels . . . Confirm all six are extended on FLT CNTRLS synoptic display

    1. 30° with green fill for flaps up, 55° with green fill for flaps 10° or greater

  4. Stick . . . Input full left or right stick and hold (repeat Step 4 thru Step 7 for opposite side)

  5. Ailerons . . . Confirm correct left/right aileron position on FLT CNTRLS synoptic display

    1. Left/right aileron is up (shaded green) for corresponding left/right stick input, opposite aileron is down (filled in, shaded green)

  6. Spoiler Panels . . . Confirm middle and outboard panels on aileron up side are fully deployed (55°) on FLT CNTRLS synoptic display

  7. Spoiler Panels . . . Confirm inboard spoilers (both sides) are deployed 30° on FLT CNTRLS synoptic display

  8. SPEED BRAKE . . . Retract

  9. Spoiler Panels . . . Confirm stowed

  10. Stick . . . Input full left or right and hold (repeat steps Step 10 thru Step 13 for opposite side)

  11. Ailerons . . . Confirm correct left/right aileron position on FLT CNTRLS synoptic display

    1. Left/right aileron is up (filled in, shaded green) for corresponding left/ right stick input, opposite aileron is down (filled in, shaded green)

  12. Spoiler . . . Panels Confirm middle and outboard panel on aileron up side are fully deployed (55°) on FLT CNTRLS synoptic display

    1. Confirm inboard panel on aileron up side is stowed

  13. Spoiler Panels . . . Confirm aileron down side spoiler panels are stowed on FLT CNTRLS synoptic display

  14. Stick . . . Release

  15. FCS Surfaces . . . Confirm faired/stowed except for flaps (optional) on FLT CNTRLS synoptic display

  16. Stick . . . Input full forward/full aft (repeat Step 16 thru Step 17 for opposite direction)

  17. Elevator . . . Confirm full trailing edge down/up respectively (filled in, shaded green) on FLT CNTRLS synoptic display

  18. Stick . . . Release

  19. FCS Surfaces . . . Confirm faired/stowed except for flaps (optional) on FLT CNTRLS synoptic display

  20. NOTE

    Ensure nose wheel steering power switch is OFF prior to actuating rudder pedals to avoid scrubbing the nose wheel tire.

  21. Rudder Pedal . . . Input full left/full right (repeat Step 20 thru Step 22 for opposite direction)

  22. Rudder . . . Confirm full left/right respectively (filled in, shaded green) on FLT CNTRLS synoptic display

  23. Rudder . . . Pedal Release

  24. FCS Surfaces . . . Confirm faired/stowed except for flaps (optional) on FLT CNTRLS synoptic display

References

Gulfstream GVII-G500 Aircraft Operating Manual, Revision 3, April 24, 2019

Gulfstream GVII-G500 Airplane Flight Manual, Revision 1, August 31, 2018

Gulfstream GVII-G500 Production Aircraft Systems, Revision 1, Oct 1, 2018

Revision: 20190610
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