nfJFS GSAC 

# AIRWORTHINESS DIRECTIVE released byDIRECTIONGENERALEDEL'AvtATlON CIVILE Inspection and/or modilications desctibed below ate mandaIOf}'. Noperson may operate aprodlJd to which this Airwotthiness Directille applies except inaccordance with the requirements ofthisAirwOJthiness Directive.

Translation of 'Consigne deNavigabitite' ref.: 2002-504(AB) Incaseofanydifficulty, reference should bemadetothe French original issue.
SICMA AERO SEAT Passenger seats Central spreaders modification (ATA 25)
1. APPLICABILITY: Types 90XX and 92XX SICMA AERO SEAT passenger seals part numbers, as defined in Annex 1 of SICMA AERO SEAT Service Bulletin 92-25-005 last approved revision, all serial numbers, right side only. These seats can befound on (but not limited to) ATR 42 and ATR 72 aircraft. Airlines names written in Annex 1 of SICMA AERO SEAT SelVice Bullelin 92-25-005 last approved revision are airlines 10which aircraft have been delivered when new. 2. REASONS: Cracks have been found in central spreaders PIN 92-000100-200-1 or PIN 92-000101-200-1. This may heavily affect the structural integrity ofthe seat. 3. COMPLIANCE: 1) Before accomplishment of further 500 flight hours after effective date of this Airworthiness Directive (AD), perform a visual inspection of central spreaders PIN 92-000100-200-1 or PIN 92-000101-200-1 of affected seats by foHowing instructions given in paragraph Part One nChecking procedureft of SICMA AERO SEAT SelVice Bulletin 92-25-005 lastapproved revision. If no crae!<isfound, repeal this inspection al intelVals notexceeding 500flighl hours. In the following, definitions oftypes 1, 2, 3of cracks are given in the chart found in due paragraph Part One -Checking procedure - Accomplishment instructionsft of SICMA AERO SEAT SelVice Bulletin 92-25-005 lastapproved revision. Ifa type 1 crack isfound, before 6 months or before accomplishment offurther 500flight hours at the first of the two limits, after having check the crack did not tum into a type 2 or type 3 crack, install doublers PIN 00-6536, and record this modification by following instructions given paragraph Part One; BWSeat identification~ of SICMA AERO SEAT SelVice Bulletin 92-25-005Iasl approved revision.

...f.. October 02, 2002 SiCMA AERO SEAT Passengers seats lOOl-504(AB)

## GSAC 

# I AIRWORTHINESS DIRECTIVE ref. : 

### 2002-504(AB)

Ifa crack of type 2 or type 3 isfound, before further flight, replace the affected central spreader by a newone ofsame part number, equipped with doublers PIN 00-6536. Should a new spreader not readily available, perform a temporary repair by installing doublers PIN 00-6536. This temporary repair is limited to 500 flight hours or 6 months, at the first of the two limits_After removal of this temporary repair perform the final fix by installing a new spreader of same pert number equipped with doublers PIN 00-6536, and record this modification by following instructions given paragraph Part One; B ~Seatidenlification~ of SIGMA AERO SEAT Service Bul1elln 92-25-005 lastapproved revision. 2) Terminating action On affected seats, if not already accomplished, before December 31sl, 2005, install doublers PIN 00-6536 on central spreaders. Record this modification byfollowing instructions given paragraph Part One; B "Seat identification" of Service Bulletin SIGMA AERO SEAT 92-25-005 last approved revision.

REF.: SIGMAAERO SEAT Service Bulletin 92-25-005.


### EFFECTIVE DATE OCTOBER 12, 2002