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GSAC

AIRWORTHINESS DIRECTIVE

released by DIRECTIONGENERALE DE L'AvtATlON CIVILE

Inspection and/or modilications desctibed below ate mandaIOf}'. No person may operate a prodlJd to which this

Airwotthiness Directille applies except in accordance with the requirements of this AirwOJthiness Directive.

Translation of 'Consigne de Navigabitite' ref.: 2002-504(AB)

In case of any difficulty, reference should be made to the 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 be found 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 of the 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 last approved revision.

If no crae!<is found, repeal this inspection al intelVals not exceeding 500 flighl hours.

In the following, definitions of types 1, 2, 3 of 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 last approved revision.

If a type 1 crack is found, before 6 months or before accomplishment of further 500 flight 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; B WSeatidentification~ 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)

If a crack of type 2 or type 3 is found, before further flight, replace the affected central spreader by a

new one of same 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 ~Seat idenlification~ of SIGMA AERO SEAT Service Bul1elln

92-25-005 last approved 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 by following instructions given paragraph

Part One; B "Seat identification" of Service Bulletin SIGMA AERO SEAT 92-25-005 last approved

revision.

REF.: SIGMA AERO SEAT Service Bulletin 92-25-005.

EFFECTIVE DATE OCTOBER 12, 2002