## Exhibit C Pinnac l X Chameleon Multirotor Maintenance

Pinnacl X Page 1 Maintenance and Testing

 Maintenance and repair must be recorded in the maintenance log book

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 Inspection prior to first flight each day , see preflight inspection

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 The Chameleon, DJI S1000 or S900 is not authorized to fly over, public areas, road ways, boat

traffic areas or any other areas which involve flight over priva t e property and people. The

aircraft is approved for filming flight over TV and movie sets with the necessary approvals.

Multirotor Preflight Procedure

 Fully charged flight pack maximum al l owed cell voltage difference .1 V

 Autopilot secure on vibration isolation mounts

 GPS secure

 Receiver secure

 Data radio secure

 Video transmitter secure

 Camera secure and camera battery charged

 Secure battery in correct location for a balance aircraft

 CG cor rect

 Arm bolts tight (check each flight)

 Motor bolts tight (check each flight)

 Landing gear bolts tight (check each flight)

 Check for cracks in frame, arms, landing gear, and camera mounts

 Check propellers for cracks and replace as necessary

 Propellers on correctly (See diagram in Chameleon case)

 Propellers on tight (try to turn propellers while holding the motors. Check each flight)

 Motor spring clip check (Pull up on propeller, if the propeller and motor case moves up the shaft

spring clip may be damage or disconnected. Replace motor or install a new clip. Check each

flight)

50 hour or 2 month Inspection and T est

 Remove top cover , bottom cover (if on aircraft) and top frame plate

o Check for cracks and replace as necessary

 Check the security of the, receiv er, data radio, auto pilot, ESC and wiring

 Replace Velcro tape and or vibration mounting as necessary

 Check the ESC connections to the autopilot

 Check the receiver connection to the autopilot and receiver

 Check the wiring to the GPS, buzzer, switch, data r adi o, video and power wiring

 Use lock tight medium on bolts and reassemble the top frame

 Recalibrate aircraft as necessary if any of the electronics were replaced

 Range check the pilot an observer transmitters, see transmitter manuals

 Perform preflight che ck list

 Bench test multi rotor, pitch roll and yaw control. Check maximum power

## Exhibit C Pinnac l X Chameleon Multirotor Maintenance

Pinnacl X Page 2  Record flights using GSC

 Flight test aircraft (In all cases listed below the multi rotor must be controllable to pass)

 Manual mode maximum thrust take off

 Manual mode in hover maximum yaw control

 Manual mode in hover maximum roll and pitch maneuvers

 Manual mode maximum thrust pitch and roll maneuvers followed by switching to LTR

 ATT mode maximum pitch and roll to obtain maximum velocity and release controls

 ATT mode maximum pitc h and roll to obtain maximum velocity and release controls and

maximum YAW followed by switching to LTR

 LTR mode maximum pitch, roll and YAW followed by rel easing of the controls

 Fly aircraft a ways away and switch to RTL

 Fly basic patterns in AUTO mode

 Perform post flight check list

100 hr or one year inspection and test

 Replace propellers at 100hrs (Until propeller life is determined)

 Replace motors at 100hrs (Until motor life is determined)

 Replace ESCs at 100hrs (Until ESC life is determined)

 Perform 50hr inspection and test