Today I made the jump from a Mavic Pro to the PP4 Obsidian after having actively flown my Mavic for over a year. After updating the firmware I took her out for a quick test flight to acclimate myself before performing any deep changes to any of the settings. I have a 60 foot pine tree on my property and I flew over the top of the tree with about 40 foot of initial height clearance. It was at this time I wanted to test the bottom sensors so I slowly lowered the PP4 until I was probably no more than a foot or two off the top of the tree. At no time did I get a sensor alert that I was getting too close to an object.
At this time I landed and performed a sensor calibration with the Assistant. I took flight again and carefully got as close as I could with the bottom sensors to that tree and a couple fo others that a fairly high. Still no alerts. After a few of these test passes I received an alert on my screen which indicated a bottom sensor failure telling me to land. All four LED's on the PP4 were red at this time. I landed and powered everything down. I waited a few minutes and then powered everything up before taking flight again. I flew for another 15 minutes or so with no additional critical warnings. The LED's stayed two red and two green, which is normal.
I realize I was taking risk by flying close to my trees, but is the lack of any bottom sensor warning as I got close to the trees normal or is this an indication of an actual mechanical issue? Thank you. I appreciate your help.
At this time I landed and performed a sensor calibration with the Assistant. I took flight again and carefully got as close as I could with the bottom sensors to that tree and a couple fo others that a fairly high. Still no alerts. After a few of these test passes I received an alert on my screen which indicated a bottom sensor failure telling me to land. All four LED's on the PP4 were red at this time. I landed and powered everything down. I waited a few minutes and then powered everything up before taking flight again. I flew for another 15 minutes or so with no additional critical warnings. The LED's stayed two red and two green, which is normal.
I realize I was taking risk by flying close to my trees, but is the lack of any bottom sensor warning as I got close to the trees normal or is this an indication of an actual mechanical issue? Thank you. I appreciate your help.
