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Service Bulletin SB-550
NameRevisionLangSubjectDate
enMandatory CONVERSION OF GERMAN LICENSED AIRPLANE TO U.S. REGISTRATION06/19/1981
enEmergency CERTIFICATION REQUIREMENTS - REPUBLIC OF IRELAND TO UK CONVERSION01/24/2002
2enPLACARDS AND MARKINGS - CONVERSION OF BRITISH LICENSED AIRPLANE TO US REGISTRATION01/19/2001
5en12/03/1989
enMandatory PLACARDS AND MARKINGS - GRAVEL RUNWAY KIT AIRSPEED AND OPERATIONAL LIMITATIONS PLACARD REPLACEMENT10/18/1991
2enAIR CONDITIONING - CABIN VENTILATION MOTOR REPLACEMENT12/01/1993
1enAIR CONDITIONING - COCKPIT COOLING DUCT INSTALLATION06/16/1993
enAlert AIR CONDITIONING - CABIN FAN AND DEFOG BLOWER WIRING IMPROVEMENT06/16/2003
enCOMMUNICATIONS - COCKPIT VOICE RECORDER HOT MICROPHONE ACTIVATION09/13/1991
1enCOMMUNICATIONS - COCKPIT VOICE RECORDER G-SWITCH RELAY WIRING INSPECTION/MODIFICATION11/15/1991
4en
1enCOMMUNICATIONS - FLITEFONE VI ANTENNA CABLE REPLACEMENT10/18/1993
en300 VA INVERTER WATER SHIELD INSTALLATION10/10/1980
1enELECTRICAL POWER - LIGHT DIMMING CIRCUIT J-BOX SCREW AND DIODE MODIFICATION07/21/1995
1enELECTRICAL POWER - AVIONICS POWER RELAYS REPLACEMENT12/01/2005
3en
2enFLIGHT CONTROLS - EXTENDED PEDESTAL AILERON PULLEY BRACKET MODIFICATION09/01/1992
enMandatory FUEL - RIGHT FUEL PROBE REPLACEMENT12/04/1998
enHYDRAULIC POWER - HYDRAULIC LINE CHAFING02/20/1998
enEmergency LANDING GEAR - EMERGENCY GEAR RELEASE CABLE RUB BLOCK INSTALLATION04/10/1998
3en01/22/2002
enLIGHTS - LANDING LIGHT BULB PROTECTION12/07/1990
enLIGHTS - LANDING LIGHT CIRCUIT SWITCH MODULE INSTALLATION04/12/1996
enMandatory NAVIGATION - DME/NAV 2 WIRING MODIFICATION06/22/1984
enNAVIGATION - MULTIFUNCTION DISPLAY SYMBOL GENERATOR WIRE BUNDLE ROUTING MODIFICATION10/18/1996
enNAVIGATION - HONEYWELL PRIMUS RADIO ADF SYSTEM IMPROVEMENTS01/31/1994
enNAVIGATION - INTERMITTENT RUDDER KICK CORRECTION MODIFICATION02/17/1995
enNAVIGATION - MEGGITT MARK | SECONDARY FLIGHT DISPLAY UNIT UPGRADE12/18/2001
1enMandatory NAVIGATION - STATIC PORT DOUBLER INSPECTION11/14/2002
4en
1enPNEUMATIC - BLEED AIR TUBE REPLACEMENT03/23/2001
1enDOORS - WIDE DOOR SEAL ACTUATOR LINKAGE MODIFICATION05/31/1985
1enDOORS - ENTRY DOOR CABLE REPLACEMENT03/06/2003
2enMandatory FUSELAGE - TAILCONE SKIN - INSPECTION AND MODIFICATION OF VERTICAL FIN SPAR INTERFERENCE09/23/1983
enMandatory FUSELAGE - FS 59.00 FRAME INSPECTION/MODIFICATION12/02/1983
enMandatory FUSELAGE - FORWARD CABIN SEAT RAIL MODIFICATION01/18/1989
2enFUSELAGE - TAILCONE BAGGAGE COMPARTMENT GUSSET INSPECTION/INSTALLATION02/14/1992
enFUSELAGE - DORSAL FIN INSTALLATION AND MATERIAL IMPROVEMENT11/15/1996
enMandatory FUSELAGE - LEFT INBOARD SEAT BEAM RIVET PATTERN MODIFICATION10/10/2002
3en03/31/1989
enIMPROVEMENTS WINGS - WHEEL WELL STRUCTURE10/14/1999
1enMandatory ENGINE FUEL AND CONTROL - 9912031-6 FUEL FLOW TRANSMITTER THREAD INSPECTION11/02/1990
enMandatory THRUST REVERSER THROTTLE LINK ASSEMBLY REPLACEMENT05/15/1980