2006MH/T 3011.1-2006 Maintenance for civil aircraft Ground safety Part 1: Wheel chocks for civil aircraft
1996MH 3145.31-1996 Maintenance standards for civil aircraft.Unit 2:Ground safety.Part 31:Wheel chocks for civil aircraft
MH 3145.31-1996 Maintenance standards for civil aircraft.Unit 2:Ground safety.Part 31:Wheel chocks for civil aircraft was changed to MH/T 3011.1-2006 Maintenance for civil aircraft Ground safety Part 1: Wheel chocks for civil aircraft.