AIRWORTHINESS DIRECTIVE

CAA-T-AD-3-055R2/98

Date of issue: September 09, 1998

Effective date: upon receipt

 

GSAC

AIRWORTHINESS DIRECTIVE

released by DIRECTION GENERALE DE L'AVIATION CIVILE

Inspection and/or modifications described below are mandatory. No person may operate a product to which this

Airworthiness Directive applies except in accordance with the requirements of this Airworthiness Directive.

Translation of `Consigne de Navigabilité' ref. : 98-263-255(B) R2

In case of any difficulty, reference should be made to the French original issue.

AIRBUS A300, A310, A300-600 Aircraft

Alternate Braking System Check

1. Applicability:

All Model A300, A310, A300-600 series aircraft, certificated in any category.

2. Reason:

This Telegraphic Airworthiness Directive is prompted by a recent event of an alternate braking system loss leading an A320 aircraft to go beyond the end of the runway at landing. This event was due to the freezing in flight of water ingressed in the bottom of the Braking Dual Distribution Valve (BDDV) preventing the alternate braking mode to operate at landing.

3. Mandatory action and compliance dates:

In order to detect a possible loss of the alternate braking system resulting from a possible in flight seizure of a BDDV due to water freezing, the functional test and, when necessary, the associated maintenance tasks described in Paragraphe 4 of Airbus Industrie AOT 32-19 Revision 2 dated August 20, 1998 must be applied and the results must be reported to Airbus Industrie.

NOTE:

Enquiries regarding the technical content of this AD should be made to:

DGAC France, SFACT/N.AT:

DGAC/SFACT/N.AT, 48 rue Camille Desmoulins, 92452 Issy les Moulineaux Cedex,

Tel: ( 33) 1 41 09 45 09 - Fax: ( 33) 1 41 09 42 20 (or 43 19)

or to

Airbus Industrie AI/EA:

1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex - France

Tel: ( 33) 5 61 93 48 01 - Fax:( 33) 5 61 93 44 51

REF. AIRBUS INDUSTRIE AOT 32-19 Revision 2 dated August 20, 1998

This Revision 2 replaces the AD 98-263-255(B) R1 dated August 12, 1998 which has been the subject of a telegraphic diffusion on July 17, 1998.

EFFECTIVE DATES:

Original AD: Upon receipt of telegraphic diffusion issued on JULY 08, 1998

Revision 1: Upon receipt of telegraphic diffusion issued on JULY 17, 1998

Revision 2: Upon receipt

Address inquiries concerning this AD to: Ing. Toman, Civil Aviation Authority, Airworthiness Division, Ruzyne Airport, 160 08 Prague 6, Czech Republic, tel.: 420 2 2011/2711, fax: 420 2 364112