Pilatus (Switzerland)

Status Subject

Detail

Reference information

Contact: Dietmar Poll, EWMS Technomanagement Ltd, Newmatt 18, CH-1736 St Silvester, Switzerland.

PILATUS B4

M Canopy catch

fit limiting cable

SB 1001

M Crotch strap

fouls rudder cables

SB 1002

M Aileron

bell crank pin fouling

SB 1003

Control systems

lubrication

SL 101

M Seat latch pins fouling

serial numbers 1 140

SL 102

M Gear down lock cracks

fit thicker locking plate

Rudder cables

escape from keyholes guides - wire or tape around guides

Elevator drive rods

rivets loose in fittings

M Airbrake system

fit stops & check rivets for looseness

AD 86-041, SB 1004

M Drag spar pin improperly engaged inspect & modify if necessary

M Drag spar bushes

to be secured may fall out of de-rigged gliders

Fin to fuselage joint corrosion inspect for paint cracks

R Tailplane

Tailplane mounting inspection following H/Landing, Ground loop

Or severe turbulence

BGA 018/05/2001 issue 2

M Flying controls

Inspection of CC support (B4-PC11, 11A, 11AF)

AD 2004-491, SB 1005

Pilatus B4 In Service Reports (Advisory)

I Landing gear I Structures

Operating arm tubular rivet failed Exfoliation corrosion found on wing spar root area

TNS
07/76 12/76 12/85 04/86 08/88 10/75 & 10/90 04/96 06/01 04/03
1/2009 2-2012

Page 1 BGA Compendium 05/12