OSO 19 – Safe recovery from Human Error
AMC1 Article 11 Annex E. Operational Safety Objective 19
CAA ORS9 Decision No. 46
OSO 19 – Safe recovery from Human Error
Level of integrity
| Criterion | Low (SAIL 3) | Medium (SAIL 4, 5) | High (SAIL 6) |
|---|---|---|---|
| Criterion | OSO19.L.I |
OSO19.M.I |
OSO19.M.I |
Level of assurance
| Criterion | Low (SAIL 3) | Medium (SAIL 4, 5) | High (SAIL 6) |
|---|---|---|---|
| Criterion | OSO19.L.A |
OSO19.M.A |
OSO19.H.A |
Low level of robustness (SAIL 3)
OSO19.L.I
The systems detecting and/or recovering from human errors must be developed to industry’s best practices.
OSO19.L.A
(a) The Applicant must declare and provide evidence of compliance with the Integrity requirements. The detailed evidence of compliance may be assessed by the CAA.
(b) If compliance evidence is provided through simulation, the validity of the target environment used in the simulation must be justified.
Medium level of robustness (SAIL 4 and 5)
Lower robustness level requirements to be complied with:
• None
Additional requirements to be compiled with:
OSO19.M.I
The systems detecting and/or recovering from human errors must be developed to a standard or means of compliance acceptable to the CAA.
OSO19.M.A
(a) The Applicant must provide evidence of compliance with the Integrity requirements, which will be assessed by the CAA.
(b) Compliance evidence may include testing, analysis, simulation, inspection, design review or through operational experience.
High level of robustness (SAIL 6)
Lower robustness level requirements to be complied with:
• OSO19.M.I
Additional requirements to be compiled with:
OSO19.H.I
No additional requirements.
OSO19.H.A
The Applicant must provide evidence of compliance with the Integrity requirements, which will be assessed by the CAA. The CAA will validate continuing compliance through oversight.
GM1 Article 11 Annex E. Operational Safety Objective 19
CAA ORS9 Decision No. 46
GM.OSO19
OSO19 addresses the risk of human errors that may affect the safety of the operation if they are not prevented or are not detected and recovered in a timely fashion. Any person involved in the operation is at risk of human errors, e.g.:
-
The crew incorrectly loading the payload onto the UA, causing the payload to fall off the UA during the operation.
-
The crew incorrectly extending or deploying an antenna mast, reducing the C2 link coverage.
OSO19 covers the UAS design, i.e. systems detecting and/or recovering from human errors, e.g. functional tests, safety pins, use of acknowledgment features, fuel or energy consumption monitoring function, etc.
Operational procedures and training are addressed in OSO 8 and OSO 9 respectively. Flight envelope protection from human error is addressed in OSO 18.
GM.OSO19.L.A
Compliance evidence is typically provided through testing, analysis, simulation, inspection, design review or through operational experience.