G4Doc2004 From United States of America, joined Feb 2004, 123 posts, RR: 0
Reply 1, posted (8 years 10 months 2 weeks 1 day 23 hours ago) and read 3331 times:
It all depends on the engine service plan you enroll the engines on when you purchase the aircraft. The service plans require SOAP samples be taken at specific intervals (150-300 hours) to ascertain the "health" of the engine. Garrett engines are very reliable, but programs like MSP, JSSI, ESP, and others can specifiy the SOAP interval. This however is NOT a chapter 5 item and therefore is not a required maintenance task.
P&W has ESP (Eagle Service Plan) if I remember ( I maintained Lear 60-235) there were SOAPs required to be in the Gold ESP......but it's been a few years now. Pratt has issues brewing with the 300 series engines, such as the HPT blades eroding and not making hot section, and a rash of bad BOV's.
"Failure to prepare is preparing to fail"--Benjamin Franklin