- About Platinum300
- Continental Aircraft Engines
- Lycoming Aircraft Engines
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- Why choose us?
- AD/CON/82
- Lycoming Mandatory Service Bulletin No. 301B
- Lycoming Mandatory Service Bulletin No. 505B
- Lycoming Service Instruction No. 1009AS
- Lycoming Service Instruction No. 1425A
- New Website
- On Condition Engines
- Teledyne Continental Motors Service Information Letter SIL98-9A
- Dealer Registration
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Platinum 300 Pty Ltd:
ACN: 006 305 960
6/14-16 Tova Drive,
Carrum Downs 3201 Australia
Contact: Philip George, Managing Director
Phone: (03) 9775 1887
Fax: (03) 9770 8454
Mobile: 0412 316 116
Lycoming Mandatory Service Bulletin No. 505B
Posted: 14 February 2011
As more experience has been gained with aging engines, it is obvious that calendar time and frequency of use are important factors of service life. With age, the effects of corrosion can result in structural problems for engine components. Reports of crankshaft breakage originating from corrosion pits on the inside wall immediately aft of the pilot diameter have been received for fixed pitch propeller aircraft. To preclude the occurrence, this area must be inspected in the manner specified in Section I.