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Mavic Air Crashed into South Holston Lake

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robrv21

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Hello,

I recently purchased a refurbished drone direct from DJI. I've flown it successfully with no issues until tonight. I was flying over South Holston Lake and was over a mile out and decided to bring it back home. As I was turning to bring it back, it began warning me of "NAVIGATION SYSTEM REDUNDANCY SWITCH" and "ATTI MODE". I lost video transmission, but at one point the video came back and I was able to see that it was very close to the water and banked at a sharp angle. I again lost video and then the transmission signal was lost. I am certain that it crashed into the water. I'm very upset because I loved flying my drone. I'm very confused as to why the drone didn't return home when it started experiencing issues. I am wondering if DJI is able to assist me with this in any way? This was a huge investment for me and I really want to enjoy flying in the future. Can someone review the flight log and help me figure out what might have went wrong?
 

Attachments

robrv21 said:
There are two DAT files with today's date stamp. I've attached them.
Click to expand...

This looks like failure of one, or maybe both IMUs. All three rate gyros show significant disagreements between the two IMUs, and two of the accelerometers (y and z) also disagree. As a result there are large disagreements in pitch and roll, leading to similarly large disagreements in yaw. That's unrecoverable, but also prevents ATTI mode from working - the FC was unable to keep the aircraft level.

72964

72965
 
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Can't see how they wouldn't, that's a pretty catastrophic failure !
 
Wow. I figured it had to be something catastrophic since I had no control whatsoever and it wasn’t returning home. I really hope DJI will replace this. Sucks that I lost a nice ND filter and SD card as well.
 
robrv21 said:
Wow. I figured it had to be something catastrophic since I had no control whatsoever and it wasn’t returning home. I really hope DJI will replace this. Sucks that I lost a nice ND filter and SD card as well.
Click to expand...

I forgot to include the event stream in the post above. You can see the FC failing to resolve the problem even by switching IMUs:

310.528 : 18721 [L-FDI][FDI] ns atti(0) tilt is outlier
310.528 : 18721 [L-FDI][FDI] ns atti(1) tilt is outlier
310.531 : 18722 [L-FDI]NS(0) FUSION(0): fault on , disagree
310.531 : 18722 [L-FDI]NS(0) FUSION(1): fault on , disagree
310.531 : 18722 [L-FDI]fatal error: no ns with level < 4 !!!
311.229 : 18757 [L-FMU/LED]action changed. imu error:ns_abnormal(3)
311.395 : 18765 [L-API]get_id_index_by_basic_cmd: cmd 14 index 9
311.395 : 18765 [L-CMD]exec_fc_basic_function index 9
311.395 : 18765 [L-API]exit_landing_check
311.395 : 18765 [L-CMD]basic_cmd_table send_id 2
311.395 : 18765 [L-API]basic_cmd_exit_landing
311.395 : 18765 [L-N_MIS]req abort all for app_exit_landing
311.413 : 18766 [L-N_MIS]Switch new mis 3 req 2 from mis 26 req 16
311.413 : 18766 [L-FLYMODE]SWITCH2HOVER!
311.428 : 18767 [L-FDI]NS(0) FUSION(0): fault off, disagree
311.428 : 18767 [L-FDI]NS(0) FUSION(1): fault off, disagree
311.429 : 18767 [L-FMU/LED]action changed. Normal Flash(0)
311.429 : 18767 [L-FMU/LED]type:0, normal flash action:
311.429 : 18767 [L-FMU/LED]c0:0,15;c1:0,3;c2:0,13;c3:2,3;c4:0,10;c5:0,3;c6:0,10;c7:0,3
311.600 : 18775 [L-FDI][FDI] ns atti(0) tilt is outlier
311.600 : 18775 [L-FDI][FDI] ns atti(1) tilt is outlier
311.608 : 18776 [L-FDI]NS(0) FUSION(0): fault on , disagree
311.608 : 18776 [L-FDI]NS(0) FUSION(1): fault on , disagree
311.608 : 18776 [L-FDI]fatal error: no ns with level < 4 !!!
311.628 : 18777 [L-FDI]NS(0) FUSION(0): fault off, disagree
311.628 : 18777 [L-FDI]NS(0) FUSION(1): fault off, disagree
311.715 : 18781 [L-FDI][FDI] ns atti(0) tilt is outlier
311.715 : 18781 [L-FDI][FDI] ns atti(1) tilt is outlier
311.728 : 18782 [L-FDI]NS(0) FUSION(0): fault on , disagree
311.728 : 18782 [L-FDI]NS(0) FUSION(1): fault on , disagree
311.728 : 18782 [L-FDI]fatal error: no ns with level < 4 !!!
312.446 : 18818 [L-FDI]NS(0) FUSION(1): fault on , disagree_with_mini_filter
312.466 : 18819 [L-FDI]NS(1),fdi req switch to mini filter
312.470 : 18819 [L-N_MIS]Fail to check mis 3. Reset
312.470 : 18819 [L-N_MIS]Exit mis 3. New mis 2
312.470 : 18819 [L-N_MIS]Switch new mis 2 req 1 from mis 3 req 2
312.470 : 18819 [L-FLYMODE]GPS2ATTI!Init atti dynscale scale 15.615585
312.486 : 18820 [L-IMU]userId[3] idx[1] mini_filter_used state:1
312.805 : 18836 [L-FDI]NS(0) FUSION(0): fault off, disagree
312.805 : 18836 [L-FDI]NS(0) FUSION(1): fault off, disagree
312.805 : 18836 [L-FDI]ns req:fdi,1to0,reason:disagree_with_mini_filter,result:succeed
312.805 : 18836 [L-FMU/DM]Busy Device Changed. Type:imu0_local, <ID:17 idx:1-->ID:8 idx:0>, change tim
312.809 : 18836 [L-N_MIS]Exit mis 2. New mis 3
312.809 : 18836 [L-N_MIS]Switch new mis 3 req 2 from mis 2 req 1
312.809 : 18836 [L-FLYMODE]SWITCH2HOVER!
312.877 : 18839 [L-FDI][FDI] ns atti(0) tilt is outlier
312.877 : 18839 [L-FDI][FDI] ns atti(1) tilt is outlier
312.885 : 18840 [L-FDI]NS(0) FUSION(0): fault on , disagree
312.885 : 18840 [L-FDI]NS(0) FUSION(1): fault on , disagree
312.885 : 18840 [L-FDI]ns req:fdi,0to1,reason:disagree_tilt,result:fail for disagree_tilt
312.885 : 18840 [L-FDI]fatal error: no ns with level < 4 !!!
313.224 : 18857 [L-FMU/LED]action changed. imu error:ns_abnormal(3)
316.058 : 18999 [L-FDI][FDI] ns atti(0) heading is outlier
316.058 : 18999 [L-FDI][FDI] ns atti(1) heading is outlier
316.076 : 19000 [L-FDI]ns req:fdi,0to1,reason:disagree_yaw,result:fail for disagree_yaw
318.510 : 19122 [L-FDI]NS(0) FUSION(1): fault on , magn_heading_err_large
319.547 : 19174 [L-FDI]NS(0) FUSION(0): fault off, disagree
319.547 : 19174 [L-FDI]NS(0) FUSION(1): fault off, disagree
319.608 : 19177 [L-FMU/LED]action changed. Normal Flash(0)
319.608 : 19177 [L-FMU/LED]type:0, normal flash action:
319.608 : 19177 [L-FMU/LED]c0:0,15;c1:0,3;c2:0,13;c3:2,3;c4:0,10;c5:0,3;c6:0,10;c7:0,3
320.904 : 19242 [L-FDI]NS(0) FUSION(1): fault off, disagree_with_mini_filter
320.924 : 19243 [L-FDI]NS(1),switch to normal filter
320.924 : 19243 [L-FDI]ns req:fdi,0to1,reason:normal,result:succeed
320.924 : 19243 [L-FMU/DM]Busy Device Changed. Type:imu1_ext_ns, <ID:8 idx:0-->ID:17 idx:1>, change ti
320.944 : 19244 [L-IMU]userId[3] idx[1] mini_filter_used state:0
322.081 : 19300 [L-BATTERY]get_cell_voltage_callback_ack failed!||
323.025 : 19348 [L-FDI][sensor_api_info] head(2,0,31,4).|
324.195 : 19407 [L-FDI]NS(0) FUSION(1): fault off, magn_heading_err_large
324.242 : 19409 [L-FDI][FDI] ns atti(0) tilt is outlier
324.242 : 19409 [L-FDI][FDI] ns atti(1) tilt is outlier
324.255 : 19410 [L-FDI]NS(0) FUSION(0): fault on , disagree
324.255 : 19410 [L-FDI]NS(0) FUSION(1): fault on , disagree
324.255 : 19410 [L-FDI]fatal error: no ns with level < 4 !!!
324.295 : 19412 [L-FDI]NS(0) FUSION(0): fault off, disagree
324.295 : 19412 [L-FDI]NS(0) FUSION(1): fault off, disagree
325.055 : 19450 [L-FDI][FDI] ns atti(0) tilt is outlier
325.055 : 19450 [L-FDI][FDI] ns atti(1) tilt is outlier
325.073 : 19451 [L-FDI]NS(0) FUSION(0): fault on , disagree
325.073 : 19451 [L-FDI]NS(0) FUSION(1): fault on , disagree
325.073 : 19451 [L-FDI]fatal error: no ns with level < 4 !!!
325.434 : 19469 [L-FDI][FDI] ns atti(0) heading is outlier
325.434 : 19469 [L-FDI][FDI] ns atti(1) heading is outlier
325.893 : 19492 [L-FDI][FDI] ns atti(0) heading is outlier
325.893 : 19492 [L-FDI][FDI] ns atti(1) heading is outlier
326.789 : 19537 [L-FMU/LED]action changed. imu error:ns_abnormal(3)
327.524 : 19573 [L-FDI][FDI] ns atti(0) vgz is outlier
327.524 : 19573 [L-FDI][FDI] ns atti(1) vgz is outlier
328.122 : 19603 [L-FDI][FDI] ns atti(0) heading is outlier
328.122 : 19603 [L-FDI][FDI] ns atti(1) heading is outlier
328.963 : 19646 [L-FDI][CTRL]: fault on , height_ctrl_fail
328.983 : 19647 [L-RC]craft ctrl failed!!!
329.422 : 19669 [L-FDI]NS(0) FUSION(1): fault on , magn_heading_err_large
329.881 : 19692 [L-FDI][CTRL]: fault off, height_ctrl_fail
330.739 : 19735 [L-FDI][CTRL]: fault on , height_ctrl_fail
330.965 : 19746 [L-FDI][FDI] ns atti(0) vgz is outlier
330.965 : 19746 [L-FDI][FDI] ns atti(1) vgz is outlier
330.998 : 19748 [L-RC]craft ctrl failed!!!
332.685 : 19832 [L-FDI][FDI] ns atti(0) alti is outlier
332.685 : 19832 [L-FDI][FDI] ns atti(1) alti is outlier
332.810 : 19838 [L-FDI][FDI] ns atti(0) alti is outlier
332.810 : 19838 [L-FDI][FDI] ns atti(1) alti is outlier
332.865 : 19841 [L-FDI][FDI] ns atti(0) alti is outlier
332.865 : 19841 [L-FDI][FDI] ns atti(1) alti is outlier
 
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sar104 said:
I forgot to include the event stream in the post above. You can see the FC failing to resolve the problem even by switching IMUs:

310.528 : 18721 [L-FDI][FDI] ns atti(0) tilt is outlier
310.528 : 18721 [L-FDI][FDI] ns atti(1) tilt is outlier
310.531 : 18722 [L-FDI]NS(0) FUSION(0): fault on , disagree
310.531 : 18722 [L-FDI]NS(0) FUSION(1): fault on , disagree
310.531 : 18722 [L-FDI]fatal error: no ns with level < 4 !!!
311.229 : 18757 [L-FMU/LED]action changed. imu error:ns_abnormal(3)
311.395 : 18765 [L-API]get_id_index_by_basic_cmd: cmd 14 index 9
311.395 : 18765 [L-CMD]exec_fc_basic_function index 9
311.395 : 18765 [L-API]exit_landing_check
311.395 : 18765 [L-CMD]basic_cmd_table send_id 2
311.395 : 18765 [L-API]basic_cmd_exit_landing
311.395 : 18765 [L-N_MIS]req abort all for app_exit_landing
311.413 : 18766 [L-N_MIS]Switch new mis 3 req 2 from mis 26 req 16
311.413 : 18766 [L-FLYMODE]SWITCH2HOVER!
311.428 : 18767 [L-FDI]NS(0) FUSION(0): fault off, disagree
311.428 : 18767 [L-FDI]NS(0) FUSION(1): fault off, disagree
311.429 : 18767 [L-FMU/LED]action changed. Normal Flash(0)
311.429 : 18767 [L-FMU/LED]type:0, normal flash action:
311.429 : 18767 [L-FMU/LED]c0:0,15;c1:0,3;c2:0,13;c3:2,3;c4:0,10;c5:0,3;c6:0,10;c7:0,3
311.600 : 18775 [L-FDI][FDI] ns atti(0) tilt is outlier
311.600 : 18775 [L-FDI][FDI] ns atti(1) tilt is outlier
311.608 : 18776 [L-FDI]NS(0) FUSION(0): fault on , disagree
311.608 : 18776 [L-FDI]NS(0) FUSION(1): fault on , disagree
311.608 : 18776 [L-FDI]fatal error: no ns with level < 4 !!!
311.628 : 18777 [L-FDI]NS(0) FUSION(0): fault off, disagree
311.628 : 18777 [L-FDI]NS(0) FUSION(1): fault off, disagree
311.715 : 18781 [L-FDI][FDI] ns atti(0) tilt is outlier
311.715 : 18781 [L-FDI][FDI] ns atti(1) tilt is outlier
311.728 : 18782 [L-FDI]NS(0) FUSION(0): fault on , disagree
311.728 : 18782 [L-FDI]NS(0) FUSION(1): fault on , disagree
311.728 : 18782 [L-FDI]fatal error: no ns with level < 4 !!!
312.446 : 18818 [L-FDI]NS(0) FUSION(1): fault on , disagree_with_mini_filter
312.466 : 18819 [L-FDI]NS(1),fdi req switch to mini filter
312.470 : 18819 [L-N_MIS]Fail to check mis 3. Reset
312.470 : 18819 [L-N_MIS]Exit mis 3. New mis 2
312.470 : 18819 [L-N_MIS]Switch new mis 2 req 1 from mis 3 req 2
312.470 : 18819 [L-FLYMODE]GPS2ATTI!Init atti dynscale scale 15.615585
312.486 : 18820 [L-IMU]userId[3] idx[1] mini_filter_used state:1
312.805 : 18836 [L-FDI]NS(0) FUSION(0): fault off, disagree
312.805 : 18836 [L-FDI]NS(0) FUSION(1): fault off, disagree
312.805 : 18836 [L-FDI]ns req:fdi,1to0,reason:disagree_with_mini_filter,result:succeed
312.805 : 18836 [L-FMU/DM]Busy Device Changed. Type:imu0_local, <ID:17 idx:1-->ID:8 idx:0>, change tim
312.809 : 18836 [L-N_MIS]Exit mis 2. New mis 3
312.809 : 18836 [L-N_MIS]Switch new mis 3 req 2 from mis 2 req 1
312.809 : 18836 [L-FLYMODE]SWITCH2HOVER!
312.877 : 18839 [L-FDI][FDI] ns atti(0) tilt is outlier
312.877 : 18839 [L-FDI][FDI] ns atti(1) tilt is outlier
312.885 : 18840 [L-FDI]NS(0) FUSION(0): fault on , disagree
312.885 : 18840 [L-FDI]NS(0) FUSION(1): fault on , disagree
312.885 : 18840 [L-FDI]ns req:fdi,0to1,reason:disagree_tilt,result:fail for disagree_tilt
312.885 : 18840 [L-FDI]fatal error: no ns with level < 4 !!!
313.224 : 18857 [L-FMU/LED]action changed. imu error:ns_abnormal(3)
316.058 : 18999 [L-FDI][FDI] ns atti(0) heading is outlier
316.058 : 18999 [L-FDI][FDI] ns atti(1) heading is outlier
316.076 : 19000 [L-FDI]ns req:fdi,0to1,reason:disagree_yaw,result:fail for disagree_yaw
318.510 : 19122 [L-FDI]NS(0) FUSION(1): fault on , magn_heading_err_large
319.547 : 19174 [L-FDI]NS(0) FUSION(0): fault off, disagree
319.547 : 19174 [L-FDI]NS(0) FUSION(1): fault off, disagree
319.608 : 19177 [L-FMU/LED]action changed. Normal Flash(0)
319.608 : 19177 [L-FMU/LED]type:0, normal flash action:
319.608 : 19177 [L-FMU/LED]c0:0,15;c1:0,3;c2:0,13;c3:2,3;c4:0,10;c5:0,3;c6:0,10;c7:0,3
320.904 : 19242 [L-FDI]NS(0) FUSION(1): fault off, disagree_with_mini_filter
320.924 : 19243 [L-FDI]NS(1),switch to normal filter
320.924 : 19243 [L-FDI]ns req:fdi,0to1,reason:normal,result:succeed
320.924 : 19243 [L-FMU/DM]Busy Device Changed. Type:imu1_ext_ns, <ID:8 idx:0-->ID:17 idx:1>, change ti
320.944 : 19244 [L-IMU]userId[3] idx[1] mini_filter_used state:0
322.081 : 19300 [L-BATTERY]get_cell_voltage_callback_ack failed!||
323.025 : 19348 [L-FDI][sensor_api_info] head(2,0,31,4).|
324.195 : 19407 [L-FDI]NS(0) FUSION(1): fault off, magn_heading_err_large
324.242 : 19409 [L-FDI][FDI] ns atti(0) tilt is outlier
324.242 : 19409 [L-FDI][FDI] ns atti(1) tilt is outlier
324.255 : 19410 [L-FDI]NS(0) FUSION(0): fault on , disagree
324.255 : 19410 [L-FDI]NS(0) FUSION(1): fault on , disagree
324.255 : 19410 [L-FDI]fatal error: no ns with level < 4 !!!
324.295 : 19412 [L-FDI]NS(0) FUSION(0): fault off, disagree
324.295 : 19412 [L-FDI]NS(0) FUSION(1): fault off, disagree
325.055 : 19450 [L-FDI][FDI] ns atti(0) tilt is outlier
325.055 : 19450 [L-FDI][FDI] ns atti(1) tilt is outlier
325.073 : 19451 [L-FDI]NS(0) FUSION(0): fault on , disagree
325.073 : 19451 [L-FDI]NS(0) FUSION(1): fault on , disagree
325.073 : 19451 [L-FDI]fatal error: no ns with level < 4 !!!
325.434 : 19469 [L-FDI][FDI] ns atti(0) heading is outlier
325.434 : 19469 [L-FDI][FDI] ns atti(1) heading is outlier
325.893 : 19492 [L-FDI][FDI] ns atti(0) heading is outlier
325.893 : 19492 [L-FDI][FDI] ns atti(1) heading is outlier
326.789 : 19537 [L-FMU/LED]action changed. imu error:ns_abnormal(3)
327.524 : 19573 [L-FDI][FDI] ns atti(0) vgz is outlier
327.524 : 19573 [L-FDI][FDI] ns atti(1) vgz is outlier
328.122 : 19603 [L-FDI][FDI] ns atti(0) heading is outlier
328.122 : 19603 [L-FDI][FDI] ns atti(1) heading is outlier
328.963 : 19646 [L-FDI][CTRL]: fault on , height_ctrl_fail
328.983 : 19647 [L-RC]craft ctrl failed!!!
329.422 : 19669 [L-FDI]NS(0) FUSION(1): fault on , magn_heading_err_large
329.881 : 19692 [L-FDI][CTRL]: fault off, height_ctrl_fail
330.739 : 19735 [L-FDI][CTRL]: fault on , height_ctrl_fail
330.965 : 19746 [L-FDI][FDI] ns atti(0) vgz is outlier
330.965 : 19746 [L-FDI][FDI] ns atti(1) vgz is outlier
330.998 : 19748 [L-RC]craft ctrl failed!!!
332.685 : 19832 [L-FDI][FDI] ns atti(0) alti is outlier
332.685 : 19832 [L-FDI][FDI] ns atti(1) alti is outlier
332.810 : 19838 [L-FDI][FDI] ns atti(0) alti is outlier
332.810 : 19838 [L-FDI][FDI] ns atti(1) alti is outlier
332.865 : 19841 [L-FDI][FDI] ns atti(0) alti is outlier
332.865 : 19841 [L-FDI][FDI] ns atti(1) alti is outlier
Click to expand...
which program do you read the file from, I thought it was encrypted and only read by DJI
 
sar104 said:
I forgot to include the event stream in the post above. You can see the FC failing to resolve the problem even by switching IMUs:

310.528 : 18721 [L-FDI][FDI] ns atti(0) tilt is outlier
310.528 : 18721 [L-FDI][FDI] ns atti(1) tilt is outlier
310.531 : 18722 [L-FDI]NS(0) FUSION(0): fault on , disagree
310.531 : 18722 [L-FDI]NS(0) FUSION(1): fault on , disagree
310.531 : 18722 [L-FDI]fatal error: no ns with level < 4 !!!
311.229 : 18757 [L-FMU/LED]action changed. imu error:ns_abnormal(3)
311.395 : 18765 [L-API]get_id_index_by_basic_cmd: cmd 14 index 9
311.395 : 18765 [L-CMD]exec_fc_basic_function index 9
311.395 : 18765 [L-API]exit_landing_check
311.395 : 18765 [L-CMD]basic_cmd_table send_id 2
311.395 : 18765 [L-API]basic_cmd_exit_landing
311.395 : 18765 [L-N_MIS]req abort all for app_exit_landing
311.413 : 18766 [L-N_MIS]Switch new mis 3 req 2 from mis 26 req 16
311.413 : 18766 [L-FLYMODE]SWITCH2HOVER!
311.428 : 18767 [L-FDI]NS(0) FUSION(0): fault off, disagree
311.428 : 18767 [L-FDI]NS(0) FUSION(1): fault off, disagree
311.429 : 18767 [L-FMU/LED]action changed. Normal Flash(0)
311.429 : 18767 [L-FMU/LED]type:0, normal flash action:
311.429 : 18767 [L-FMU/LED]c0:0,15;c1:0,3;c2:0,13;c3:2,3;c4:0,10;c5:0,3;c6:0,10;c7:0,3
311.600 : 18775 [L-FDI][FDI] ns atti(0) tilt is outlier
311.600 : 18775 [L-FDI][FDI] ns atti(1) tilt is outlier
311.608 : 18776 [L-FDI]NS(0) FUSION(0): fault on , disagree
311.608 : 18776 [L-FDI]NS(0) FUSION(1): fault on , disagree
311.608 : 18776 [L-FDI]fatal error: no ns with level < 4 !!!
311.628 : 18777 [L-FDI]NS(0) FUSION(0): fault off, disagree
311.628 : 18777 [L-FDI]NS(0) FUSION(1): fault off, disagree
311.715 : 18781 [L-FDI][FDI] ns atti(0) tilt is outlier
311.715 : 18781 [L-FDI][FDI] ns atti(1) tilt is outlier
311.728 : 18782 [L-FDI]NS(0) FUSION(0): fault on , disagree
311.728 : 18782 [L-FDI]NS(0) FUSION(1): fault on , disagree
311.728 : 18782 [L-FDI]fatal error: no ns with level < 4 !!!
312.446 : 18818 [L-FDI]NS(0) FUSION(1): fault on , disagree_with_mini_filter
312.466 : 18819 [L-FDI]NS(1),fdi req switch to mini filter
312.470 : 18819 [L-N_MIS]Fail to check mis 3. Reset
312.470 : 18819 [L-N_MIS]Exit mis 3. New mis 2
312.470 : 18819 [L-N_MIS]Switch new mis 2 req 1 from mis 3 req 2
312.470 : 18819 [L-FLYMODE]GPS2ATTI!Init atti dynscale scale 15.615585
312.486 : 18820 [L-IMU]userId[3] idx[1] mini_filter_used state:1
312.805 : 18836 [L-FDI]NS(0) FUSION(0): fault off, disagree
312.805 : 18836 [L-FDI]NS(0) FUSION(1): fault off, disagree
312.805 : 18836 [L-FDI]ns req:fdi,1to0,reason:disagree_with_mini_filter,result:succeed
312.805 : 18836 [L-FMU/DM]Busy Device Changed. Type:imu0_local, <ID:17 idx:1-->ID:8 idx:0>, change tim
312.809 : 18836 [L-N_MIS]Exit mis 2. New mis 3
312.809 : 18836 [L-N_MIS]Switch new mis 3 req 2 from mis 2 req 1
312.809 : 18836 [L-FLYMODE]SWITCH2HOVER!
312.877 : 18839 [L-FDI][FDI] ns atti(0) tilt is outlier
312.877 : 18839 [L-FDI][FDI] ns atti(1) tilt is outlier
312.885 : 18840 [L-FDI]NS(0) FUSION(0): fault on , disagree
312.885 : 18840 [L-FDI]NS(0) FUSION(1): fault on , disagree
312.885 : 18840 [L-FDI]ns req:fdi,0to1,reason:disagree_tilt,result:fail for disagree_tilt
312.885 : 18840 [L-FDI]fatal error: no ns with level < 4 !!!
313.224 : 18857 [L-FMU/LED]action changed. imu error:ns_abnormal(3)
316.058 : 18999 [L-FDI][FDI] ns atti(0) heading is outlier
316.058 : 18999 [L-FDI][FDI] ns atti(1) heading is outlier
316.076 : 19000 [L-FDI]ns req:fdi,0to1,reason:disagree_yaw,result:fail for disagree_yaw
318.510 : 19122 [L-FDI]NS(0) FUSION(1): fault on , magn_heading_err_large
319.547 : 19174 [L-FDI]NS(0) FUSION(0): fault off, disagree
319.547 : 19174 [L-FDI]NS(0) FUSION(1): fault off, disagree
319.608 : 19177 [L-FMU/LED]action changed. Normal Flash(0)
319.608 : 19177 [L-FMU/LED]type:0, normal flash action:
319.608 : 19177 [L-FMU/LED]c0:0,15;c1:0,3;c2:0,13;c3:2,3;c4:0,10;c5:0,3;c6:0,10;c7:0,3
320.904 : 19242 [L-FDI]NS(0) FUSION(1): fault off, disagree_with_mini_filter
320.924 : 19243 [L-FDI]NS(1),switch to normal filter
320.924 : 19243 [L-FDI]ns req:fdi,0to1,reason:normal,result:succeed
320.924 : 19243 [L-FMU/DM]Busy Device Changed. Type:imu1_ext_ns, <ID:8 idx:0-->ID:17 idx:1>, change ti
320.944 : 19244 [L-IMU]userId[3] idx[1] mini_filter_used state:0
322.081 : 19300 [L-BATTERY]get_cell_voltage_callback_ack failed!||
323.025 : 19348 [L-FDI][sensor_api_info] head(2,0,31,4).|
324.195 : 19407 [L-FDI]NS(0) FUSION(1): fault off, magn_heading_err_large
324.242 : 19409 [L-FDI][FDI] ns atti(0) tilt is outlier
324.242 : 19409 [L-FDI][FDI] ns atti(1) tilt is outlier
324.255 : 19410 [L-FDI]NS(0) FUSION(0): fault on , disagree
324.255 : 19410 [L-FDI]NS(0) FUSION(1): fault on , disagree
324.255 : 19410 [L-FDI]fatal error: no ns with level < 4 !!!
324.295 : 19412 [L-FDI]NS(0) FUSION(0): fault off, disagree
324.295 : 19412 [L-FDI]NS(0) FUSION(1): fault off, disagree
325.055 : 19450 [L-FDI][FDI] ns atti(0) tilt is outlier
325.055 : 19450 [L-FDI][FDI] ns atti(1) tilt is outlier
325.073 : 19451 [L-FDI]NS(0) FUSION(0): fault on , disagree
325.073 : 19451 [L-FDI]NS(0) FUSION(1): fault on , disagree
325.073 : 19451 [L-FDI]fatal error: no ns with level < 4 !!!
325.434 : 19469 [L-FDI][FDI] ns atti(0) heading is outlier
325.434 : 19469 [L-FDI][FDI] ns atti(1) heading is outlier
325.893 : 19492 [L-FDI][FDI] ns atti(0) heading is outlier
325.893 : 19492 [L-FDI][FDI] ns atti(1) heading is outlier
326.789 : 19537 [L-FMU/LED]action changed. imu error:ns_abnormal(3)
327.524 : 19573 [L-FDI][FDI] ns atti(0) vgz is outlier
327.524 : 19573 [L-FDI][FDI] ns atti(1) vgz is outlier
328.122 : 19603 [L-FDI][FDI] ns atti(0) heading is outlier
328.122 : 19603 [L-FDI][FDI] ns atti(1) heading is outlier
328.963 : 19646 [L-FDI][CTRL]: fault on , height_ctrl_fail
328.983 : 19647 [L-RC]craft ctrl failed!!!
329.422 : 19669 [L-FDI]NS(0) FUSION(1): fault on , magn_heading_err_large
329.881 : 19692 [L-FDI][CTRL]: fault off, height_ctrl_fail
330.739 : 19735 [L-FDI][CTRL]: fault on , height_ctrl_fail
330.965 : 19746 [L-FDI][FDI] ns atti(0) vgz is outlier
330.965 : 19746 [L-FDI][FDI] ns atti(1) vgz is outlier
330.998 : 19748 [L-RC]craft ctrl failed!!!
332.685 : 19832 [L-FDI][FDI] ns atti(0) alti is outlier
332.685 : 19832 [L-FDI][FDI] ns atti(1) alti is outlier
332.810 : 19838 [L-FDI][FDI] ns atti(0) alti is outlier
332.810 : 19838 [L-FDI][FDI] ns atti(1) alti is outlier
332.865 : 19841 [L-FDI][FDI] ns atti(0) alti is outlier
332.865 : 19841 [L-FDI][FDI] ns atti(1) alti is outlier
Click to expand...
Thank you so much for analyzing this for me. I’m hopeful that DJI will send me a replacement.
 
robrv21 said:
Thank you so much for analyzing this for me. I’m hopeful that DJI will send me a replacement.
Click to expand...

Right - I didn't specifically say it, but this looks to me like clear hardware failure. I would escalate the ticket if the initial analysis comes back inconclusive, which it often does.
 
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