GSAC

TELEGRAPHIC AIRWORTHINESS DIRECTIVE

released by DIRECTION GENERALE DE L'AVIATION CIVILE

This text is not sent to foreign operators of aircraft non registered in France. It is up to the national authorities to forward it to them on receipt.

Translation of 'Consigne de Navigabilité'

ref.: T98-148-076(B)

ref.: T98-149-038(B)

In case of any difficulty, reference should

be made to the French original issue.

AEROSPATIALE: ATR 42 Aircraft (T98-148-076(B))

ATR 72 Aircraft (T98-149-038(B))

1/ Applicability:

All ATR Aircraft

2/ Reason:

This TAD is prompted by an event where an ATR experienced in flight the loss of number one DC generator, then the loss of the number two DC generator when attempting to reset the number one DC generator Push Button and after few minutes the loss of main battery power.

3/ Compliance time:

From the effective date of this AD.

4/ Mandatory actions:

In case of one DC generator failure, apply strictly the directives specified in ATR AFM chapter 5. (Procedures following failure, paragraph 5.04.02 - Electrical System)

NOTE: In case of dual DC generator failure, as specified in ATR AFM chapter 4, (Emergency Procedures, paragraph 4.04.01 - Dual DC GEN loss), the reset of generators should be attempted.

5/ Reference: NIL

6/ Effective date: Upon receipt of this telegraphic AD issued on March 20, 1998.