For LOM Praha M137/M337/M332 engines
WMS-SL-M-2018-01: Calendar extension for engines overhauled under EASA STC 10067113
WMS-SL-M-2018-01/A01: Performing Revision F on M137/M337/M332
For Walter Minor 4-III/6-III engines
M4-III-43b: replacement of Scintilla magnetos with PAL LUN 2225
M4-III-42b / M6-III-51b: cancellation of mid-life engine inspection for operation on dispersant oils
M4-III-41b / M6-III-50b: TBO increase to 1200/1100 hours for operation on dispersant oils
M4-III-38b / M6-III-47b: use of L22.62 spark plugs
M4-III-36b / M6-III-45b: replacement of Scintilla dynamo with PALAX LUN 2111
M4-III-35a / M6-III-44a: internal corrosion check and calendar/TBO update
Other bulletins coming soon – with urgent enquiries, please contact us