"A key step in the data validation process for the final report will be ensuring that the two principal sources of data used in measuring use of the trial freedoms (i.e. the Noise and Track-Keeping System and NATS operations logs) are reconciled accurately and consistently so as to provide a robust and reliable picture of the flights that have benefited from the application of the operational freedoms. We would recommend that Cambridge University look specifically at this aspect of data generation as part of their validation role."
That's a roundabout way of saying that there has already been disagreement among the various stakeholders about basic facts: what aircraft landed, when, and on which runway.
If that isn't resolved promptly, it doesn't bode well for the credibility of any conclusions reached or far-reaching decisions made on the basis of the trial. |