EASA AD No.: 2014-0212

TE.CAP.00110-004 © European Aviation Safety Agency. All rights reserved. 1/2 

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EASA AIRWORTHINESS DIRECTIVE 

AD No.: 2014-0212 

Date: 19 September 2014 

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 EU 748/2012, Part 21.A.3B. In accordance with EC 2042/2003 Annex I, Part M.A.301, the 

continuing airworthiness of an aircraft 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 

2042/2003 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: 

GROB AIRCRAFT AG 

Type/Model designation(s): 

G 115 and G 120 aeroplanes 

TCDS Numbers: EASA.A.364 and EASA.A.075 

Foreign AD: Not applicable 

Supersedure: None 

ATA 80 Starting – Starter Solenoid – Inspection 

Manufacturer(s): GROB Aircraft AG (formerly Grob Aerospace GmbH, Grob Werke GmbH & Co. 

KG). 

Applicability: GROB G 115E and G 115EG aeroplanes, all serial numbers (S/N) up to and 

including S/N 82323/E, and 

GROB G 120A and G 120A-I aeroplanes, all S/N up to and including S/N 

85063. 

Reason: An operator of a G 115E aeroplane experienced a total loss of electrical power 

in flight. The root cause was found to be a defective starter solenoid causing an 

internal short circuit, which resulted in breakdown of the system voltage. 

This condition, if not detected and corrected, could result in reduced control of 

the aeroplane. 

To address this potential unsafe condition, GROB Aircraft AG issued Service 

Bulletin (SB) MSB1078-196 for G 115 aeroplanes and SB MSB1121-144 for 

G 120 aeroplanes to provide instructions for inspection and corrective action. 

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

starter solenoid and, depending on findings, replacement of the starter. 

A technical solution is currently under development and further AD action may 

follow. 

Effective Date: 03 October 2014 
EASA AD No.: 2014-0212

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Required Action(s) 

and Compliance 

Time(s): 

Required as indicated, unless accomplished previously: 

(1) Within 30 days after the effective date of this AD, inspect the starter 

solenoid in accordance with the instructions of GROB SB MSB1078-196 or 

MSB1121-144, as applicable to aeroplane type. In addition, for G 115E 

aeroplanes, install a placard « IFR operation in VMC only » on the 

instrument panel in full view of the pilot in accordance with the instructions 

of GROB SB MSB1078-196. 

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

damage to the starter is found, before next flight, replace the affected 

starter with a serviceable part in accordance with the instructions of GROB 

SB MSB1078-196 or MSB1121 144, as applicable to aeroplane type. 

Ref. Publications: GROB Aircraft AG SB MSB1078-196 original issue dated 14 July 2014 

(for G 115E and G 115EG). 

GROB Aircraft AG SB MSB1121-144 original issue dated 14 July 2014 

(for G 120A and G 120A-I). 

The use of later approved revisions of these documents 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. This AD was posted on 29 July 2014 as PAD 14-123 for consultation until 

26 August 2014. No comments were received during the consultation 

period. 

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

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

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

this AD, please contact: 

GROB Aircraft AG, Product Support 

E-mail: productsupport@grob-aircraft.com.