Appendix C. Abbreviated Checklists
Appendix C. Abbreviated Checklists
Normal Procedures Abbreviated Checklists
Aircraft Starting
Aircraft Power
| Step | Action | Condition |
|---|---|---|
| 1. | Energy Storage Device (Right) - Condition, Load | |
| 2. | Energy Storage Device (Right) - Plug-in, Security, cables clear of propeller path | |
| 3. | Energy Storage Device (Left) - Condition, Load | |
| 4. | Energy Storage Device (Left) - Plug-in, Security, cables clear of propeller path | |
| 5. | Wait 1 minute - Do not shake or disturb aircraft | |
| Checklist Complete |
CAUTION: Failure to adequately inspect the energy storage devices or use of energy storage devices which are not in nominal condition may result in Low Energy during flight operations.
NOTE: This pin will make an audible snap when the energy storage device is secured.
CAUTION: Failure to adequately inspect the energy storage devices or use of energy storage devices which are not in nominal condition may result in Low Energy during flight operations.
CAUTION: Failure to not shake or not disturb the aircraft for 1 minute after plugging in the energy storage devices may degrade IMU and GPS performance and result in degraded aircraft flight performance.
Aircraft Starting
| Step | Action | Condition |
|---|---|---|
| 1. | Radio Comms - Confirm remaining energy life and device condition | If Applicable |
| 2. | AMC GCS - Open application. Verify connection to aircraft | |
| 3. | Uncrew GCS - Check | If Applicable |
| 4. | Flight Alerter: Open | If Applicable |
| 5. | Kp-index - Confirm at 8 or less. If greater, STOP. Do not fly while conditions persist. | |
| 6. | AMC GCS - Confirm Remote ID status indicator green, Confirm connected to at least 21 satellites. | |
| 7. | Hub Dashboard - All Statuses GO | |
| 8. | HubOps MCA - Assign Energy Storage Devices. Aircraft will soft reboot. Send Mission to Uncrew | If Applicable |
| 9. | Soft Reboot - Perform | If Applicable |
| 10. | AMC GCS - Confirm PLD Idling | |
| 11. | AMC GCS - Check (49.5 volt minimum) | |
| 12. | Uncrew Mission Planner: Create Mission | If Applicable |
| 13. | ASMIRA - Confirm video stream operational | |
| Checklist Complete |
NOTE: After a ground soak period at cold temperatures, the aircraft should not be operated for 5 minutes after aircraft power is applied. Failure to do so may result in failure of Aircraft Starting and/or Before Takeoff checks.
NOTE: Within the HubOps Web application, ensure that the delivery point is in a clear area for delivery based on the satellite imagery. If a new point is selected, click the “Save” button.
NOTE: The use of the HubOps application is only required for the Daily Functional Flight Check and when changing Energy Storage Device type.
NOTE: If the energy storage device voltage is below 49.5V or the energy consumption is not nominal, do not proceed. Restarting Aircraft procedure should be performed. If issue(s) persist, alternative energy storage devices should be utilized and the Aircraft Power procedure repeated. Maintenance should be performed on the removed energy storage devices in accordance with the PRISM V2.3 UMM.
NOTE: Uncrew Mission Planner will not be used for the Daily Functional Flight Check.
NOTE: The parachute light indicators will be blinking blue and cyan until the safety switch is turned off.
Restarting Aircraft
| Step | Action | Condition |
|---|---|---|
| 1. | Energy Storage Devices - Unplug, wait 1 minute | |
| 2. | Proceed to Aircraft Power checklist | |
| Checklist Complete |
Soft Reboot
| Step | Action | Condition |
|---|---|---|
| 1. | Vehicle Setup Tab - Open within AMC | |
| 2. | Safety Tab - Open | |
| 3. | Reboot Vehicle - Select | |
| 4. | Proceed to Aircraft Starting checklist | |
| Checklist Complete |
NOTE: Soft reboot of the aircraft is only required under nominal conditions as part of the Energy Storage Device Hot Swap procedure.
Before Takeoff
| Step | Action | Condition |
|---|---|---|
| 1. | Safety Switch - Confirm enabled via repeating audible beep | |
| 2. | Walkaround - Complete | |
| 3. | Winch Health - Inspect winch light on housing | If Applicable |
| 4. | Dynamic External Load - Inspect (1.5 pound minimum) | Load, As Required |
| 5. | Winch Line - Confirm correctly aligned on pulley | If Applicable |
| 6. | Safety Switch - Press Button to Disarm, confirm single audible beep. Confirm ACL turned on. | |
| 7. | Parachute Status - Confirm blinking green indicator | |
| 8. | AMC GCS - Aircraft Status Ready to fly, state indicator green | |
| 9. | Uncrew GCS - Confirm mission details, Assign RPIC in Uncrew. Confirm Altitude 0 ft +/- 8 ft. | If Applicable |
| 10. | HubOps MCA - Select “DELIVERY POINT SET” | If Applicable |
| 11. | Flight Alerter - Check. | If Applicable |
| 12. | Uncrew GCS - Check, confirm green C2 Link. | If Applicable |
| 13. | Safety Area - Confirm Secure and Clear, Announce “Safety Area All Clear” | |
| Checklist Complete |
WARNING: Approaching an aircraft where the safety switch is disabled can result in injury to persons if the motor start command is issued while personnel are within the safety area due to contact with propeller blades.
NOTE: The parachute light indicators will be blinking blue and cyan until the safety switch is disabled.
CAUTION: Do not proceed if any if the light is not flashing green. Maintenance is required per the PRISM V2.3 UMM
WARNING: HAND ENTANGLEMENT AND PINCH HAZARD: TO PREVENT INJURY, USE CAUTION AROUND ROTATING PARTS OR OBJECTS ON THE WINCH. FAILURE TO DISTANCE BODY PARTS FROM ACTIVELY ROTATING PARTS OR OBJECTS ON THE WINCH MAY RESULT IN INJURY. - KEEP ALL BODY PARTS CLEAR OF THE MACHINE WHEN IT IS UNDER POWER. - ONLY PERSONNEL WHO ARE TRAINED TO MAINTAIN THE TOOL ARE PERMITTED TO BE NEAR THE MOVING PARTS. - DO NOT ATTEMPT TO INTERFERE WITH THE MOTION OF THE MACHINE. - DO NOT PUT OR LEAVE ANY FOREIGN OBJECTS NEAR AREAS THAT CONTAIN MOVING PARTS.
WARNING: Only attach the external load to the winch grasper. Movement of and interaction with the aircraft must comply with this procedure. Failure to comply may result in external load detachment in-flight, causing damage to persons and/or property due to forcible contact with the detached external load.
WARNING: BEFORE LOADING THE PACKAGE ONTO THE AIRCRAFT, CARE SHOULD BE TAKEN TO ENSURE THE INTEGRITY OF THE DELIVERY BOX IS MAINTAINED. DO NOT SET THE BOX DOWN ON THE GROUND IF THE SURFACE IS WET AND DO NOT SWING OR JERK THE PACKAGE DURING HANDLING. FAILURE TO COMPLY MAY RESULT IN ACCIDENTAL RELEASE OF THE BOX DURING FLIGHT CAUSING DAMAGE TO PERSONS AND/OR PROPERTY DUE TO FORCIBLE CONTACT WITH THE DETACHED EXTERNAL LOAD.
WARNING: Failure to inspect the winch line prior to package loading may result in damage to the winch/line, a winch failure, accidental release of external load during flight, and loss of the package, causing damage to persons and/or property due to forcible contact with the detached external load.
NOTE: Load from rear to allow view of both Grasper Torque paint and Level Wind Pulley, POIs
NOTE: While the winch is in a locking sequence, the line will have slack. While holding the package, watch the line to verify alignment with the Level Wind Pulley is maintained.
NOTE: Once the safety switch is off, the Anti-Collision light will automatically turn on and will have a persistent blinking white flash.
WARNING: Do not proceed if altitude is outside defined tolerance. The Soft Reboot procedure should be conducted followed by Aircraft Restart procedure. If the issue persists, maintenance is required. Failure to comply may result in altitude measurement inaccuracies which can increase the likelihood of collision with obstacles. This condition could result in loss of aircraft, damage to property, or injury to persons.
CAUTION: Once the mission has been assigned, the RPIC has 60 seconds to start the mission. If the mission is not started within 60 seconds, it becomes nonconformant and shall be cancelled.
CAUTION: Do not proceed if the aircraft status indicator is not green. This condition indicates an unhealthy C2 link between Uncrew and the aircraft. Failure to comply may result in C2 Loss conditions preventing takeoff or C2 Loss in flight.
Motor Start
| Step | Action | Condition |
|---|---|---|
| 1. | Safety Area - Secure and Clear, Announce “Motor Start” | |
| 2. | Uncrew Mission Start - Send Start Mission command | |
| Checklist Complete |
CAUTION: The Takeoff/Start Mission command will engage the aircraft motors to begin rotating, creating a hazard if persons or property (obstructions) are located within the safety area. It is imperative that the safety area be void of persons or obstructions prior to the selection of the Takeoff/Start Mission command.
Takeoff
| Step | Action | Condition |
|---|---|---|
| 1. | Altitude - Confirm increase, announce “Drone Up.” | |
| 2. | Parachute - Confirm Armed above 10’ AGL. | |
| 3. | Voltage - Check at or below 50 ft AGL, 48.5V minimum no excessive drop | |
| 4. | HubOps MCA - Select “DRONE HAS TAKEN OFF” | If Applicable |
| 5. | Cruise Altitude - Check, as planned. | |
| Checklist Complete |
CAUTION: If the parachute system does not arm, immediately command Land in Place via Uncrew Mission Console.
CAUTION: A fully charged battery below 48.5V at installation indicates abnormal energy consumption, potentially leading to a Low Energy flight condition. If low voltage is detected before takeoff, initiate the Low Energy procedure to recover the aircraft and use different batteries.
NOTE: Once the aircraft transitions to the cruise flight phase (outbound leg), the aircraft will maintain altitude in accordance with the preconfigured cruise altitude determined by the Uncrew.
NOTE: Small transient (<10 feet) differences between the actual aircraft altitude (AGL) and preconfigured cruise altitude are expected as the aircraft follows the terrain.
Cruise
WARNING: Non-essential conversations and activities during all phases of flight may introduce hazardous conditions.
CAUTION: Uncrew will only give an alert to the RPIC if a NFA or perimeter is violated. The RPIC shall make this identification and take appropriate measurements in accordance with emergency procedures
CAUTION: If a NFA is violated, perform the NFA Violation emergency procedure.
| Step | Action | Condition |
|---|---|---|
| 1. | Uncrew GCS - Monitor Telemetry | |
| 2. | Uncrew GCS - Monitor Aircraft Navigation | |
| 3. | Uncrew and AMC GCS - Listen for audible alerts | |
| 4. | Airspace - Maintain Radio Comms with VO, as needed | |
| Checklist Complete |
WARNING: Non-essential conversations and activities during all phases of flight may introduce hazardous conditions.
CAUTION: Uncrew will only give an alert to the RPIC if a NFA or perimeter is violated. The RPIC shall make this identification and take appropriate measurements in accordance with emergency procedures
CAUTION: If a NFA is violated, perform the NFA Violation emergency procedure. Uncrew does not notify if the aircraft has deviated from the planned flight path unless an NFA or perimeter is violated. The RPIC shall make this identification and take appropriate measurements in accordance with emergency procedures
Route
| Step | Action | Condition |
|---|---|---|
| 1. | Route Pathing - Confirm executing route | |
| 2. | Route Objectives - Confirm executing designated waypoints | |
| 3. | Proceed to Landing & Recovery checklist | |
| Checklist Complete |
NOTE: The RPIC is unable to override the route with Uncrew. To override the route, AMC Click to Fly shall be used.
Delivery
Descent
| Step | Action | Condition |
|---|---|---|
| 1. | HubOps MCA - Select “OUTBOUND LEG COMPLETED” | If Applicable |
| 2. | Obstacles - Check video feed. Confirm no obstacles | |
| 3. | Voltage - Check in range | |
| 4. | Confirm altitude is at programmed delivery altitude | |
| Checklist Complete |
CAUTION: If an obstacle impedes the descent path, command Return to Home via Uncrew to override the descent.
WARNING: Maintain a 16-foot (radius) delivery area standoff to prevent package damage or injury from obstacles.
WARNING: Performing the delivery with insufficient energy can cause a Low Energy Emergency, potentially damaging the drone or resulting in significant harm to people, property, or critical infrastructure.
WARNING: Maintain flight plan altitude during delivery to prevent delivery failure, package detachment, injury, or property damage.
Delivery
| Step | Action | Condition |
|---|---|---|
| 1. | Aircraft Altitude - Ascend/descend to planned delivery altitude | If Applicable |
| 2. | Fly To - Adjust, Hold to Confirm | If Applicable |
| 3. | On Station - Verify, Announce “Aircraft on station.” | |
| 4. | Aircraft Health - Check, no cautions or warnings | |
| 5. | Delivery Area - Check video feed. Confirm clear, Announce “Clear for delivery.” | |
| 6. | Uncrew GCS - Select Start Delivery, Announce “Start delivery.” | |
| 7. | Package Released - Inspect Video Feed and Winch Telemetry. | |
| 8. | Winch Locked - Verify using Winch Telemetry. | |
| 9. | Confirm Successful Delivery - Select Delivered, Announce “Delivery complete” | |
| 10. | HubOps MCA - Select “PACKAGE HAS BEEN DELIVERED”. If the package was unable to be delivered, select “FAILED”. | If Applicable |
| 11. | Uncrew GCS - Aircraft Mission Status Flying | |
| Checklist Complete |
CAUTION: The altitude set via the AMC GCS altitude slider is relative to the takeoff elevation, not AGL. Neglecting the aircraft’s current altitude before using the slider can impair situational awareness, potentially leading to longer time on station or reduced mission effectiveness.
CAUTION: If delivery area unclear, command Return to Home via Uncrew to override the descent.
CAUTION: If the LiDAR rangefinder sensor is not actively reading prior to starting the delivery, proceed directly to the Climb checklist. The deliver command will not send without an active LiDAR reading.
CAUTION: Do not attempt lateral navigation while the winch is not in the locked state.
In-Flight Simulated Delivery
| Step | Action | Condition |
|---|---|---|
| 1. | Aircraft Altitude - Ascend/descend to planned delivery altitude, as needed | |
| 2. | Fly To - Adjust, Hold to Confirm | |
| 3. | On Station - Verify aircraft is at exercise location, Announce “Aircraft on station.” | |
| 4. | Aircraft Health - Check, no cautions or warnings | |
| 5. | Delivery Area - Check video feed. Confirm all clear. Announce “Clear for delivery” | |
| 6. | Delivery - Select Abort. Confirm aborted. Announce “In-Flight Simulated Delivery complete” | |
| 7. | Winch Locked - Verify using Winch Telemetry. | |
| 8. | Uncrew Return to Home - Select | |
| 9. | HubOps MCA - Select “PACKAGE HAS BEEN DELIVERED”. If the package was unable to be delivered, select “FAILED”. | If Applicable |
| 10. | Uncrew GCS - Aircraft Mission Status Contingency | |
| Checklist Complete |
CAUTION: The altitude set via the AMC GCS altitude slider is relative to the takeoff elevation, not AGL. Neglecting the aircraft’s current altitude before using the slider can impair situational awareness, potentially leading to longer time on station or reduced mission effectiveness.
CAUTION: Do not select the “Start Delivery” button. Doing so will command the winch to release the grasper with no external load attached.
Climb
| Step | Action | Condition |
|---|---|---|
| 1. | Altitude - Verify increase to cruise altitude | |
| 2. | Uncrew GCS - Aircraft Mission Status Flying / Contingency | |
| Checklist Complete |
CAUTION: If the aircraft does not begin ascent, use AMC Click to Fly.
Landing & Recovery
| Step | Action | Condition |
|---|---|---|
| 1. | Aircraft Approach - Announce “Aircraft approach” and ETA | |
| 2. | Safety Area - Verify no persons or obstructions, Announce “Safety Area All Clear” | |
| 3. | Landing - Verify altitude decrease | |
| 4. | Landing - Verify PLD Mode Active in AMC by 20’ AGL | If Applicable |
| 5. | Landing Without PLD: Select Land in Place command | If Applicable |
| 6. | PLD Active - Announce “PLD active” | If Applicable |
| 7. | Touchdown - Confirm nominal, no Excessive Force notification in AMC | |
| 8. | Aircraft Disarmed - Verify through audible tone, parachute light indicators blinking green | |
| Checklist Complete |
CAUTION: If the aircraft does not begin descent for landing, use AMC Click to Fly.
NOTE: PLD activates before descending to 20 feet AGL. If it’s not active and descent stops before reaching the recovery location, PLD won’t work; use the Land in Place command instead.
Aircraft Shutdown
| Step | Action | Condition |
|---|---|---|
| 1. | Aircraft Stationary - Verify stationary propellers | |
| 2. | Parachute Status: Confirm blinking green indicator | |
| 3. | Mission - Completed on Uncrew GCS. | |
| 4. | Announce “Safe to Approach” | |
| 5. | HubOps MCA - Select “INBOUND LEG COMPLETE” followed by “COMPLETED SUCCESSFULLY”. If inbound flight leg or landing was not performed nominally, select “FAILED”. | If Applicable |
| Checklist Complete |
Post-flight Inspection
| Step | Action | Condition |
|---|---|---|
| 1. | Parachute Tether Line - Condition and Security | |
| 2. | Winch - Verify grasper is properly attached | |
| 3. | Winch Health - Inspect winch light on housing | |
| 4. | Winch Line / Spool - Condition and Security | |
| 5. | Winch Level Wind - Ensure no debris or obstructions | |
| 6. | Winch Connector and Cable - Inspect condition and security. | |
| 7. | Propeller Leading Edges - Inspect condition. | |
| 8. | Energy Storage Device Temperature - Confirm in range | |
| 9. | Proceed to Aircraft Disassembly Checklist if no further operations | |
| Checklist Complete |
WARNING: IN THE EVENT OF AN EXCESSIVE FORCE NOTIFICATION, MAINTENANCE IS REQUIRED. PLEASE REFER TO THE PRISM V2.3 UMM FOR REQUIRED INSPECTIONS AND PROCEDURES.
Energy Storage Device Hot Swap
| Step | Action | Condition |
|---|---|---|
| 1. | Discharged Energy Storage Device (Right) - Unplug, Remove | |
| 2. | Charged Energy Storage Device (Right) - Condition, Load | |
| 3. | Charged Energy Storage Device (Right) - Plug-in, Security, cables clear of propeller path | |
| 4. | Discharged Energy Storage Device (Left) - Unplug, Remove. | |
| 5. | Charged Energy Storage Device (Left) - Condition, Load | |
| 6. | Charged Energy Storage Device (Left) - Plug-in, Security, cables clear of propeller path | |
| 7. | Energy Storage Device Voltage (AMC) - Confirm within range | |
| 8. | Reboot Vehicle (AMC) - Perform Soft Reboot procedure | |
| 9. | Proceed to Aircraft Starting Checklist | |
| Checklist Complete |
NOTE: The Energy Storage Device Hot Swap procedure shall only be performed when using the same energy pack configuration. Hot swapping between different energy pack configurations is not permitted.
This marks the end of all normal procedure abbreviated checklists
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