CTHIn ForceLegislation
AD/THIELERT/6 - Engine Oil System - Catchtank (Sump) Filter Adapter
//
© 2026 Zoe. All rights reserved.
Zoe is a legal information platform. Always consult the Federal Register of Legislation for authoritative text.
AD/THIELERT/6 - Engine Oil System - Catchtank (Sump) Filter Adapter
Start here
Turn the raw legal text into a practical explanation grounded in AD/THIELERT/6 - Engine Oil System - Catchtank (Sump) Filter Adapter.
| AD/THIELERT/6 | Engine Oil System - Catchtank (Sump)Filter Adapter | 11/2007 |
|---|
| Applicability: | Thielert Aircraft Engines TAE125-01 engines all serial numbers (s/n), up to and including s/n 02-01-1018.Note 1: These engines are known to be installed on, but not limited to, Cessna 172 and (Reims-built) F172 series (EASA STC Nr. EASA.A.S.01527); Piper PA-28 series (EASA STC Nr. EASA.A.S.01632), APEX (Robin) DR 400 series (EASA STC Nr. EASA.A.S.01380); and Diamond DA40 and DA42 series aircraft. |
|---|---|
| Requirement: | Modify the engine oil system in accordance with Thielert Aircraft Engines TM/SB TAE 125-0016, initial issue dated 19 September 2006 or Revision 1 dated15 June 2007.Note 2: EASA AD 2007-0232 dated 23 August 2007 refers. |
| Compliance: | Within the next 50 flight hours after the effective date of this directive, but not later than 30 November 2007, whichever occurs first after the effective date of this AD. |
| This Airworthiness Directive becomes effective on 25 October 2007. | |
| Background: | An in-flight engine shutdown incident was reported on an aircraft equipped with a TAE125-01 engine. This was found to be mainly the result of a blockage of the scavenge oil gear pump due to a broken axial bearing of the turbocharger. The broken parts were sucked into the oil pump and caused a seizure. With the pump inoperative, the oil separator overfilled, causing the engine oil to escape via the breather vent line. This caused a loss of oil that resulted in the engine overheating and subsequent shutdown. Thielert, the engine TC holder, has developed a filter adaptor for the Oil Catchtank (Sump) that is designed to prevent foreign objects from entering into the scavenge pump, minimising the chance of such an incident recurring. |
Image unavailable in extracted text
Charles Lenarcic
Delegate of the Civil Aviation Safety Authority
13 September 2007