The defect
THE PASSENGER ACCESS DOORS ARE EQUIPPED WITH DIFFERENTIAL AIR MOTORS FOR THE DOOR OPENING AND CLOSING OPERATION. DUE TO THE SIZE AND CONSTRUCTION OF THE DOORS, THE MOTORS THAT HOLD THE DOORS CLOSED CAN BE OVERPOWERED AND THE DOORS CAN BE FORCED OPEN BY A PASSENGER PUSHING AGAINST THEM.
The risk
IF THE VEHICLE IS IN MOTION AS THE DOORS ARE PUSHED OPEN,THE PARKING BRAKES WILL SET, STOPPING THE VEHICLE SUDDENLY. THIS COULD RESULT ININJURIES TO STANDING PASSENGERS. IF THE DOORS CAN BE PUSHED OPEN WIDE ENOUGH,A PASSENGER MAY FALL OUT OF THE MOVING VEHICLE, CAUSING SERIOUS INJURIES.
The remedy
AN UNLOADER KIT WILL BE ADDED TO DUMP THE AIR OFF OF THE SMALL CYLINDER SIDE OF THE DOOR MOTOR TO INSURE THAT THE DOORS ARE POSITIVELY LOCKED AND CANNOT BE FORCED OPEN.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Chance AH-28 | 1992, 1993 |
| Chance VS-24 | 1992, 1993 |
Components: STRUCTURE:BODY:DOOR
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Chance AH-28 | 1992 | 0 | 1 |
| Chance AH-28 | 1993 | 0 | 6 |
| Chance VS-24 | 1992 | 0 | 3 |
| Chance VS-24 | 1993 | 0 | 2 |
Other structure recalls in 1993
22 of the 223 recall campaigns reported to NHTSA in 1993 concerned the structure; CHANCE COACH, INC. filed 31 campaigns in all.
| 93V221000 30 Dec 1993 | TRACKER MARINE CORP. |
| 93V218000 15 Dec 1993 | FRUEHAUF CORPORATION |
| 93V207000 7 Dec 1993 | WESTERN STAR TRUCKS, INC. |
| 93V206000 7 Dec 1993 | FAIRMONT TAMPER |
| 93V032007 24 Nov 1993 | GILLIG CORPORATION |
| 93V185000 8 Nov 1993 | HARLEY-DAVIDSON MOTOR CO. |
| 93V174000 29 Oct 1993 | MAZDA (NORTH AMERICA),INC |
| 93V032006 28 Sept 1993 | COLLINS BUS CORPORATION |
NHTSA recalls (public domain) · all recalls of 1993