A lot of misinformation here .....
All of the Maintenance requirements for a Cessna 208/B are outlined in
Cessna CAB11-5 Rev1
Some of the previous links in this thread are for a CASA approved System of Maintenance and refer to the requirements of AD/ENG/5 for the extended TBO to 5,000 Hours. A Private operator does not require a SOM, maintenance is carried out as per the Log Book Statement.
SID’s have always been a part of the MM for the 208 Series. In the USA a Caravan regardless of operation category must have the Inspections as per the Airworthiness Limitations Section (ALS) of the Maintenance Manual carried out as they stood at the time of initial certification. Reference Lorelei Peter, Deputy Assistant Chief Counsel for Regulations, FAA. Clarification letter
https://www.faa.gov/about/office_org...rpretation.pdf
In particular ….
After added ALS requirements are not mandatory for operators or maintainers of the affected aircraft absent the FAA’s issuing an Airworthiness Directive (AD) or some other notice and comment rulemaking that would make them mandatory. This is why the older Cessna's in the USA in Private Operation do not have to comply with SIDs.