# Problem During Mission Flight

**URL:** <https://discuss.px4.io/t/problem-during-mission-flight/21283>\
**Category:** PX4 Autopilot\
**Created:** [March 3, 2021, 6:28pm UTC](https://discuss.px4.io/t/problem-during-mission-flight/21283 "2021-03-03T18:28:41Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![mehmetydz87](https://discuss.px4.io/user_avatar/discuss.px4.io/mehmetydz87/32/2017_2.png) [@mehmetydz87](https://discuss.px4.io/u/mehmetydz87)\
**Post date:** [March 5, 2021, 5:03am UTC](https://discuss.px4.io/t/problem-during-mission-flight/21283/3 "2021-03-05T05:03:10Z")

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Hi @bresch  
I started the mission flight in Manual Switch Mode. I did not change the Flight Mode via RC Transmitter during mission.

This is the second time that is happening to me [[Firmware 1.10.1 Stable Release Motor Disarm Issue in Flight](https://discuss.px4.io/t/firmware-1-10-1-stable-release-motor-disarm-issue-in-flight/14858/4)]. The first was with the Spectrum DX9 Transmitter &satellite receive. Second case is Taranis X9D Transmitter & X8R Receiver.

What is the main reason for RC Glitch. What should I do and check ?

- Connectors and Cables [Pixhawk 4 DSM & Sbus RC Port and Cable],
- Receiver Voltage [Should I use RC Receiver Voltage Protector such as [https://www.amazon.com/Spektrum-SPM1600-Voltage-Protector/dp/B000BOVMHK/ref=sr\_1\_2?dchild=1&keywords=rc+glitch+buster&qid=1614920270&sr=8-2](https://www.amazon.com/Spektrum-SPM1600-Voltage-Protector/dp/B000BOVMHK/ref=sr_1_2?dchild=1&keywords=rc+glitch+buster&qid=1614920270&sr=8-2)]
- Pixhawk 4 Hardware Problem ?  
\*etc…

Thanks for your time and tips.

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_[View the full topic](https://discuss.px4.io/t/problem-during-mission-flight/21283)._