Grounding the RICE twinax shield to the airframe via the RICE MS connector did not solve the signal and noise issue. The only other things I can think of is to take that shield and connect it to the negative 28VDC and signal return on the RICE MS connector. The 28VDC return and signal return share the same pin on the MS connector. It might be worth physically pulling the RICE instrument apart and inspecting it as well.
Lost RWO 2DC-10 during moderate turbulance at 18:00. Reboot at 18:05. Two reboots did not bring it back. Could be the USB cable. Will check post flight. Update: Post flight check found that there may have been a crooked and loose connection at the DSM. Tested but could not get it to fail after the discovery. 2D probe is working now and ready for RF08.
No nonsolicitated RWO DSM reboots prior and during flight today. Trick preflight is to engage both 2D probe and DSM breakers at the same time.
No indication that the router had any fatal causing issues with timeserver today. On one of the previous maintenance days, we moved the timeserver Ethernet cable from the network switch and plugged it directly into the router. Possibly, this is our fix.
Lost VCSEL during descent at 19:00. AC Gain value at 0. Rebooted at 19:02. After looking at playback camera (which is pretty cool), it got super cooled liquid watered or iced up. Dew point back at 19:05.
1 Comment
Kyle Holden
Flight Tech: Kyle
Takeoff: 13:27
Landing: 19:27
Fog delayed scheduled takeoff time.
Grounding the RICE twinax shield to the airframe via the RICE MS connector did not solve the signal and noise issue. The only other things I can think of is to take that shield and connect it to the negative 28VDC and signal return on the RICE MS connector. The 28VDC return and signal return share the same pin on the MS connector. It might be worth physically pulling the RICE instrument apart and inspecting it as well.
Lost RWO 2DC-10 during moderate turbulance at 18:00. Reboot at 18:05. Two reboots did not bring it back. Could be the USB cable. Will check post flight. Update: Post flight check found that there may have been a crooked and loose connection at the DSM. Tested but could not get it to fail after the discovery. 2D probe is working now and ready for RF08.
No nonsolicitated RWO DSM reboots prior and during flight today. Trick preflight is to engage both 2D probe and DSM breakers at the same time.
No indication that the router had any fatal causing issues with timeserver today. On one of the previous maintenance days, we moved the timeserver Ethernet cable from the network switch and plugged it directly into the router. Possibly, this is our fix.
Lost VCSEL during descent at 19:00. AC Gain value at 0. Rebooted at 19:02. After looking at playback camera (which is pretty cool), it got super cooled liquid watered or iced up. Dew point back at 19:05.