EASA 

EASA AD No.: 2012-0197 

AIRWORTHINESS DIRECTIVE 

AD No.: 2012-0197 

Date: 25 September 2012 

Note: This Airworthiness Directive (AD) is issued by EASA, acting in accordance with Regulation 

(EC) No 216/2008 on behalf of the European Community, its Member States and of the 

European third countries that participate in the activities of EASA under Article 66 of that 

Regulation. 

This AD is issued in accordance with EC 748/2012, Part 21.A3B. In accordance with EC 204212003 Annex I, Part M.A301 , the 

continuing airworthiness of an airetaft shall be ensured by accomplishing any applicable ADs. Consequently, no person may operate an 

aircraft to which an AD applies, except in accordance with the requirements of that AD, unless otherwise specified by the Agency [EC 

204212003 Annex I, Part M.A.303) or agreed with the Authority of the State of Registry [EC 216/2008, Article 14(4) exemption). 

Design Approval Holder's Name: Type/Model designation(s): 

SOLO KLEINMOTOREN GmbH 2350 C engines 

TCDS Number: 

Foreign AD: 

Supersedure: 

ATA 72 

Manufacturer(s): 

Applicability: 

Germany Kennblatt Nr. 4603 

Not applicable 

None 

Engine- Propeller Shaft - Inspection I Replacement 

Solo Kleinmotoren GmbH 

Model2350 C engines, all serial numbers, if a Part Number (PIN) 20 31 211 

propeller shaft is installed. 

The affected engines are only installed on DG-Fiugzeugbau Model DG-1 OOOT 

powered sailplanes. 

Reason: Two reports have been received of a broken PIN 20 31 211 propeller shaft on a 

Solo 2350 C engine. The results of the investigation showed that the failures 

were due to a material defect, most likely caused by a manufacturing error. 

Effective Date: 

This condition, if not detected and corrected, could lead to failure of the shaft 

and detachment of the propeller from the aeroplane, which, depending on the 

flight conditions, could result in reduced control of the aeroplane, or injury to 

persons on the ground. 

For the reasons described above, this AD requires a one-time inspection 

(magnetic particle or dye penetrant) of the affected propeller shafts to detect 

cracks and, depending on findings, replacement of the propeller pulley 

assembly (module) with a serviceable module. 

09 October 2012 

TE.CAP.OOll0-003 ©European Aviation Safety Agency. All rights reserved. 

Proprietary document. Copies are not controlled. Confinl1 revision status through the EASA-Internet/Intranet. 

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EASAAD No.: 2012-0197 

Required Action(s) Required as indicated, unless accomplished previously: 

and Compliance (1) Within 25 flight hours or 6 months, whichever occurs first after the effective Time(s): date of this AD, remove the complete propeller pulley assembly from the 

engine and inspect the transition region of the PIN 20 31 211 shaft in 

accordance with the instructions of Solo Kleinmotoren GmbH Technische 

Mitteilung (TM) I Service Bulletin (SB) Nr. 4603-13. 

(2) If, during the inspection as required by paragraph (1) of this AD, cracks are 

detected, before release to service of the engine, replace the propeller 

pulley assembly (module) with a serviceable module. 

(3) Within 30 days after removal of a propeller pulley assembly (module) from 

an engine, as required by paragraph (2) of this AD, send the removed 

module to Solo Kleinmotoren for investigation. 

Ref. Publications: Solo Kleinmotoren GmbH TM/SB Nr. 4603-13 dated 17 August 2012. 

The use of later approved revisions of this document is acceptable for 

compliance with the requirements of this AD. 

Remarks: 1. If requested and appropriately substantiated, EASA can approve 

Alternative Methods of Compliance for this AD. 

2. Based on the required actions and the compliance time, EASA have 

decided to issue of a Final AD with Request for Comments, postponing the 

public consultation process until after publication. 

3. Enquiries regarding this AD should be referred to the Safety Information 

Section, Executive Directorate, EASA. E-mail: ADs@easa.europa.eu. 

4. For any question concerning the technical content of the requirements in 

this AD, please contact: 

Solo Kleinmotoren GmbH, Postfach 60 01 52, 

D 71050 Sindelfingen, Germany, 

Telephone: +49 07031 -301-0, Fax: +49 07031-301-136, 

E-mail aircraft@solo-german:i.com. 

TE.CAP.OOll0-003 © European Aviation Safety Agency. All rights reserved. 2/2 

Proprietary document. Copies are not controlled. Confirm revision status through the EASA-lnternetjlntranet.