AIRWORTHINESS DIRECTIVE

CAA-AD-017/1999

Date of issue: February 10, 1999

SAILPLANE - MAINTENANCE MANUAL - AMENDMENT

Applicability: Sailplanes manufactured by Schempp-Hirth, Ventus a, Ventus b, Ventus a/16.6, Ventus b/16.6 and Ventus c, all serial numbers.

Effective date: March 25, 1999

Compliance: Required as indicated in LBA AD 1999-001.

Remarks: Where applicable, the requirements of this AD must be integrated into the Aircraft´s Logbook(s). Address inquiries concerning this AD to: Civil Aviation Authority, Airworthiness Division, Ruzyne Airport, 160 08 Prague 6, Czech Republic, tel: 420 2 324086, fax: 420 2 364112.

Ing. Pavel MATOUŠEK
Director of Airworthiness Division CAA CZ

 

Airworthiness Directive 1999-001

Luftfahrt-Bundesamt, Airworthiness Directive Section, Hermann-Blenk-Str. 26, 38108 Braunschweig, Federal Republic of Germany

Effective Date: February 11, 1999

Schempp-Hirth

 

Affected:

Kind of aeronautical product:

Manufacturer:

Type:

Models affected:

Serial numbers affected:

German Type Certificate No.:

 

 

Sailplane

Schempp-Hirth, Kirchheim/Teck, Germany

Ventus a

Ventus b, Ventus a/16.6, Ventus b/16.6 and Ventus c

all

349

Subject:

Extension of the service life

Reason:

The results of fatique tests (subsequently carried out on wing spar sections) have demonstrated that the time in service of GFRP/CFRP sailplanes and powered sailplanes may be extended to 12000 hours, provided the airworthiness of each individual aircraft is evidenced by a special multi-stage inspection program, which is then to be incorporated into the Maintenance Manual.

Action:

Exchange of pages into the Maintenance Manual.

Compliance:

Action must be done when reaching a service life of 6000 flight hours, but not later than June 30, 1999.

Technical publication of the manufacturer:

Schempp-Hirth Technical Note No. 349-24 dated October 27, 1998 which becomes herewith part of this AD and may be obtained from Messrs.:

Schempp-Hirth
Flugzeugbau GmbH
Postfach 14 43
73222 Kirchheim / Teck
Federal Republik of Germany

Phone: ++49 7021 7298-0, Fax: ++49 7021 7298-191

Accomplisishment and log book entry:

Action to be accomplished by an approved service station and to be checked and entered in the log book by a licensed inspector.

Holders of affected aircraft registered in Germany have to observe the following:

As a result of the a.m. deficiencies, the airworthiness of the aircraft is affected to such an extent that after the expiry of the a.m. dates the aircraft may be operated only after proper accomplishment of the prescribed actions. In the interest of aviation safety outweighing the interest of the receiver in a postponement of the prescribed actions, the immediate compliance with this AD is to be directed

Instructions about Available Legal Remedies:

An appeal to this notice may be raised within a period of one month following notification. Appeals must be submitted in writing or registered at the Luftfahrt-Bundesamt, Hermann-Blenk-Str. 26, 38108 Braunschweig.

Enquiries regarding this Airworthiness Directive should be referred to Mr.Olaf Schneider, Airworthiness Directive Section at the above address,fax-no. 0049 531/2355-720. Please note, that in case of any difficulty, reference should be made to the German issue!