Dear
Along with saying hello and hoping that your family is well together in these complicated days, I come to request your help in relation to the following issue:
I have in a Tecnam P92 Eaglet model aircraft that has a Rotax 912 ULS 5651249 series engine and this was installed in November 2008, so its TBO calendar would be fulfilled. According to the Manual applicable to the engine, which is 12 years old, I was analyzing SB-912-041 UL R2 and that says that the TBO Hours can be extended and that originally it was from 1500 hours to 2000 hours, but it does not say anything about extending the TBO calendar, in my opinion and even the FAA in the USA is It would extend to 2000 hours and 15 years like the new engines, but the aeronautical authority of my country requires me that the engine manufacturer in this case Rotax say or endorse that by extending the TBO hours the TBO calendar of the engine is also extended in this case It would be 12 to 15 years after having fulfilled all the SB mentioned in SB-912-041 UL R2, at this moment the aircraft is on the ground out of flight as long as it does not have the support of the engine manufacturer in relation to this issue or if there is another document of a technical nature that supports the extension of the TBO calendar, thanking you in advance for your good will
He says goodbye cordially
Sergio Lizana Ovalle Maintenance Supervisor
