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Spark's erratic fly causes
488 10 2018-8-1
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PedroHugo
lvl.2
Flight distance : 9012 ft
Portugal
Offline

  
Hello.
  
  
  
Some days ago, right after the last firmware update (maybe it was a coincidence), i had my first spark crash... luckily with no damages!
  
During the fligt, i've noticed that spark was always drifting and because of that i decided to return home. When it was 10 meters away from the balcony, spark started to flight on is own straight to my building... my only reaction was to try to get him up. I then hear some crash noise and noticed spark was laying in the roof of the building.
  
  
Can someone help understanding what happened? Here are the notifications (retrieved from the flight log, via airdata.com):
  
  
   
   
   Flight time
   
   Altitude
   
   Home Distance
   
   Type
   
   Notification
   
   A
   
   00m 00s
   
   0.0 m
   
   0 m
   
   Mode
   
   Mode changed to Motors_Started
   
   B
   
   00m 00s
   
   0.0 m
   
   0 m
   
   Tip
   
   Setting new Return-To-Home altitude to 50m (164 ft).   Setting new Maximum Flight Altitude to 120m (394 ft)
   
   C
   
   00m 00s
   
   0.0 m
   
   0 m
   
   Warning
   
   Compass Error. Your aircraft has entered a Warning Zone   (Class D). Please fly with caution.. Compass Interference. Temp Max Altitude:   120m
   
   D
   
   00m 00s
   
   0.0 m
   
   0 m
   
   Warning
   
Compass Error (repeated 9 times)
   
   E
   
   00m 01s
   
   0.0 m
   
   0 m
   
   Tip
   
Setting new Maximum Flight Altitude to 5m (16 ft)
   
   F
   
   00m 01s
   
   0.0 m
   
   0 m
   
   Warning
   
Compass Error (repeated 5 times)
   
   G
   
   00m 01s
   
   0.0 m
   
   0 m
   
   Mode
   
Mode changed to AutoTakeoff
   
   H
   
   00m 01s
   
   0.0 m
   
   0 m
   
   Warning
   
  Compass Error (repeated 10 times)
   
   I
   
   00m 05s
   
   1.1 m
   
   0 m
   
   Mode
   
  Mode changed to P-GPS
   
   J
   
   00m 08s
   
   1.2 m
   
   0 m
   
   Warning
   
Weak GPS signal. Positional accuracy may be compromised.   Please fly with caution.
   
   K
   
   00m 13s
   
   1.2 m
   
   1 m
   
   Tip
   
Compass Auto Calibration Complete. Temp Max Altitude is   cancelled.
   
   
   
   01m 17s
   
   10.3 m
   
   43 m
   
      
80% Battery
   
   L
   
   01m 54s
   
   17.9 m
   
   99 m
   
   Warning
   
Yaw Error (repeated 12 times)
   
   M
   
   01m 55s
   
   17.8 m
   
   101 m
   
   Mode
   
Mode changed to Atti
   
   N
   
   01m 55s
   
   17.8 m
   
   101 m
   
   Warning
   
Yaw Error. Compass Error. Exit P-GPS Mode
   
   O
   
   01m 55s
   
   17.8 m
   
   101 m
   
   Warning
   
Yaw Error (repeated 9 times)
   
   P
   
   01m 56s
   
   17.8 m
   
   102 m
   
   Warning
   
Yaw Error. In Flight, working IMU encounters heading   exception,please switch to atti mode if craft behave abnormally
   Q
   
   01m 56s
   
   17.8 m
   
   102 m
   
   Warning
   
Yaw Error (repeated 3 times)
   
   
   
   01m 57s
   
   17.8 m
   
   102 m
   
      
77% Battery at maximum distance
   
   R
   
   01m 57s
   
   17.8 m
   
   102 m
   
   Warning
   
Yaw Error (repeated 34 times)
   
   S
   
   02m 00s
   
   17.8 m
   
   96 m
   
   Warning
   
Compass Error (repeated 2 times)
   
   T
   
   02m 00s
   
   17.8 m
   
   95 m
   
   Warning
   
Yaw Error (repeated 3 times)
   
   U
   
   02m 01s
   
   17.8 m
   
   94 m
   
   Warning
   
Yaw Error. Weak GPS signal. Positional accuracy may be   compromised. Please fly with caution.
   
   V
   
   02m 01s
   
   17.8 m
   
   94 m
   
   Warning
   
Yaw Error (repeated 50 times)
   
   W
   
   02m 06s
   
   17.8 m
   
   73 m
   
   Warning
   
Yaw Error (repeated 50 times)
   
   X
   
   02m 11s
   
   19.9 m
   
   66 m
   
   Warning
   
Yaw Error (repeated 50 times)
   
   Y
   
   02m 16s
   
   22.0 m
   
   67 m
   
   Warning
   
Yaw Error (repeated 20 times)
   
   Z
   
   02m 18s
   
   21.8 m
   
   69 m
   
   Mode
   
Mode changed to P-GPS
   
   a
   
   02m 46s
   
   3.3 m
   
   17 m
   
   Warning
   
Yaw Error (repeated 12 times)
   
   b
   
   02m 48s
   
   3.3 m
   
   15 m
   
   Mode
   
Mode changed to Atti
   
   c
   
   02m 48s
   
   3.3 m
   
   15 m
   
   Warning
   
Yaw Error. Compass Error. Exit P-GPS Mode
   
   d
   
   02m 48s
   
   3.3 m
   
   15 m
   
   Warning
   
Yaw Error (repeated 9 times)
   
   e
   
   02m 49s
   
   2.9 m
   
   13 m
   
   Warning
   
Yaw Error. In Flight, working IMU encounters heading   exception,please switch to atti mode if craft behaab normally
   
   f
   
   02m 49s
   
   2.8 m
   
   12 m
   
   Warning
   
Yaw Error (repeated 12 times)
   
  



Thanks in advance... and sorry for my poor english!!!







2018-8-1
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BrandonW77
lvl.4
Offline

Man, this firmware update is scary!  I think I'll be holding off until the next one, read about too many problems with this one.
2018-8-1
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PedroHugo
lvl.2
Flight distance : 9012 ft
Portugal
Offline

BrandonW77 Posted at 2018-8-1 06:03
Man, this firmware update is scary!  I think I'll be holding off until the next one, read about too many problems with this one.

I've already fly after this issue with zero problems, i'm not sure one thing is related to another... but it might be related, and that is scary, as you say
2018-8-1
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Ram-UK
First Officer
Flight distance : 405207 ft
United Kingdom
Offline

There are few errors thrown out by your Spark. Important one is Compass error which could have caused trouble.

I don't think it's due to firmware update. Ensure you don't fly anywhere near build up area and check it in an open area.
2018-8-1
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jimm00re
First Officer
Flight distance : 761877 ft
Offline

I would have not lifted off with the compass errors you had. Resolve the issues, then fly. Glad to hear your spark wasn't damaged.
2018-8-1
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S-e-ven
Captain
Flight distance : 3542136 ft
Thailand
Online

Do the update again, with assistant 2. calibrate compass and IMU. Havent you seen the compass errors in the beginning of your flight? land, change position, try again. Next time
2018-8-1
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PedroHugo
lvl.2
Flight distance : 9012 ft
Portugal
Offline

jimm00re Posted at 2018-8-1 06:50
I would have not lifted off with the compass errors you had. Resolve the issues, then fly. Glad to hear your spark wasn't damaged.

Now I know I should not have flown past the compass errors. In fact, now, before each flight I am careful to perform the procedures described in the topic "Avoid Crash due to Compass Interference"... last time I was lucky but I don't want to feel the sensation of losing Spark again!!
2018-8-1
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PedroHugo
lvl.2
Flight distance : 9012 ft
Portugal
Offline

S-e-ven Posted at 2018-8-1 07:17
Do the update again, with assistant 2. calibrate compass and IMU. Havent you seen the compass errors in the beginning of your flight? land, change position, try again. Next time

It was the first time that error appeared to me... and just before that error another message appeared, saying i was entering a warning zone.

Rookie mistake... i will never repeat, that's for sure!!!
2018-8-1
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S-e-ven
Captain
Flight distance : 3542136 ft
Thailand
Online

PedroHugo Posted at 2018-8-1 07:32
It was the first time that error appeared to me... and right before that error another message appeared, saying i was entering a warning zone.

Rookie mistake... i will never repeat, that's for sure!!!

2018-8-1
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Carmenvail
First Officer
Flight distance : 1521201 ft
United States
Offline

Luckily you can attempt it again. At a Larger Airport.
2018-8-1
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PedroHugo
lvl.2
Flight distance : 9012 ft
Portugal
Offline

Carmenvail Posted at 2018-8-1 07:37
Luckily you can attempt it again. At a Larger Airport.


2018-8-1
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