The Aviation DataBase: Service Information: AP Precision Hydraulics (APPH)
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Service Bulletins • Service Newsletters

Service Bulletins
NameRevisionLangSubjectDate
4 en MLG Assembly - Inspect Cylinder Attachment Spigot Housing04/03/2013
1 en Landing Gear - Main Gear - Inspect Cylinder Web for Cracks02/01/2003
2 en Landing Gear - Nose Gear - Fit New or Modified Top Cap Assembly and Check Length of Bolts03/09/1993
5 en Nose Landing Gear - Steering Jack - Install New Seals03/31/1996
3 en Landing Gear - Main Gear - Inspect Pintle to Cylinder Interface for Cracks01/31/1995
1 en Landing Gear - Nose Gear - Measure Wall Thickness10/01/1996
en Nose Landing Gear - Steering Jack - Install New Piston03/31/2000
1 en Steering Jack - Inspect Piston Rod07/31/2003
en Main Landing Gear - Radius Rod Assembly - Inspect Cylinder01/31/2000
en Main Landing Gear - Radius Rod Assembly - Inspect Cylinder01/31/2000
en Hydraulic Power - Emergency Selector Valve - In-situ Inspection Check to Measure Operational Stiffness03/31/1991
1 en Hydraulic Power - Emergency Selector Valve - In-situ Inspection Check to Measure Operational Stiffness07/31/1991
en Hydraulic Power - Selector Valve - Sticking Plunger03/31/1991
1 en Hydraulic Power - Selector Valve - New Alternative Selector Valves Part Number AIR46658-0 and AIR46660-0 are Introduced in Lieu of Part Number AIR44880-5 and AIR44882-6, Respectively03/09/1993
Service Newsletters
NameRevisionLangSubjectDate
en Airbrake Jack - Remove Corrosion from Valve Body04/30/2004
2 en Lubrication and Free Movement of Steering Jack