DP controller problems
- DP Event
- Published on 29 May 2018
- Generated on 30 October 2026
- DPE 02/18
- 1 minute read
Undesired event
Good practice is to acknowledge and investigate the cause of alarms, even if they are intermittent, otherwise issues can be missed.
Comments
- Redundancy was lost; therefore, a yellow alert should be initiated.
- Good practice is to acknowledge and investigate the cause of alarms, even if they are intermittent, otherwise alarms can be missed.
- It should be noted that good practice is to restart the DP controllers as part of field entry trials and practice restart procedure during DP operational drills.
- The wisdom of having four DGNSS selected to the DP should be questioned. They are likely to be susceptible to similar faults and therefore provide a false sense of security. Also, the use of four position reference systems of the same type would create a bias and therefore dilute the effectiveness of the other selected systems.
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