ISDP DATA-DRIVEN PROCESS
ISDP allows cost, trend, root-cause, and other analyses to be performed using the same data resource.
|How ISDP component removal data improves the reliability of in-service airplanes||ISDP can identify potential reliability improvement areas by highlighting unusually high component removal rates.
For example, an excerpt of ISDP component removal data for a one-year period showed that an integrated drive generator (IDG) had 76 removals. This could be an indication of poor maintenance practice, extreme operational conditions, poor troubleshooting, or poor component or system reliability.
Shop findings showed that the IDG had a 100 percent justified removal rate (i.e., no no-fault-found [NFF] findings), indicating the problem was with the component itself.
The data excerpted also showed that later configurations of the IDG had low removal rates. The latest reconfiguration of the IDG had 11 removals with no NFFs.
Given this information, one recommendation to operators for improving IDG performance was to upgrade to a newer part configuration. Another option was for operators to make improvements (as outlined in the Component Maintenance Manual) to the IDG currently being used to bring it up to the level of the newest configuration.