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Accelerometer Failure

Andi Lamprecht Andi Lamprecht ·· 2 min read· Draft
Accelerometer Failure
WARNING: Accelerometer Failure may result in the aircraft’s inability to maintain position, attitude, and stability of flight resulting in any of the following: minor injuries, minor damage to manned aircraft, substantial damage to unmanned aircraft (MINOR)

INDICATIONS

  1. Warning Message: “Accel # Timeout” (AMC)

  2. Erratic flight behavior after takeoff

POSSIBLE CAUSES

  1. Hardware failure

  2. Electromagnetic interference

FAILSAFE BEHAVIOR

There is no Failsafe for this emergency.

PROCEDURE

Accelerometer Failure — ANNOUNCE

The RPIC is to announce the voice comms “Accelerometer Failure” once emergency conditions are identified using the indications information above.

↳ If Aircraft is Controllable:

Uncrew: Land in Place — SELECT

Select the “Land In Place” (Land Now) button within the Uncrew Mission Console on the RPIC Control Station.

Land In Place Button

Once the command button is selected, a popup window will appear requiring RPIC confirmation. This window will remain displayed until “CONFIRM” is selected or exit (“x”) is pressed.

Land In Place Confirmation

Once the command is confirmed, the aircraft stops performing the mission and enters Land flight mode. The Aircraft Status shall be Contingency. The aircraft will land in place and disarms after touch down.

Aircraft Disarmed — CONFIRM

At the top middle of the Fly View interface on the RPIC Tablet, confirm that the aircraft status shows Disarmed.

Aircraft Status AMC

↳ If Aircraft Uncontrollable:

AMC: EMERGENCY ACTIONS Button — SELECT

Select the “Emergency Actions” button on the top of the AMC application on the RPIC Tablet. Once pressed, a notification and confirmation popup will appear in the center of the screen.

AMC: HOLD TO CONFIRM Button — SELECT & HOLD

Press and hold the “Hold to Confirm” button to execute the Emergency Shutdown on the RPIC Tablet. Once executed, the motors immediately terminate operation (i.e. stop) and the parachute will deploy.

After deployment, the aircraft is required to be serviced in accordance with the UMM by qualified maintenance personnel.

AMC Emergency Shutdown

AMC Emergency Shutdown

CAUTION: This action will result in deployment of the parachute.
Procedure Complete
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