The defect
STEP TREAD WAS DESIGNED WITH AN UPTURNED EDGE. ALSO, INCORRECT BOLTS WERE USED TO ATTACH THE STEPS TO VEHICLE; INCORRECT BOLTS MAY FATIGUE AND BREAK ALLOWING THE STEPS TO SEPARATE FROM CAB.
The risk
PERSONS EXITING THE CAB CAN TRIP AND FALL ON UPTURNEDEDGES. ALSO, FATIGUE OR BROKEN BOLTS COULD CAUSE THE STEPS TO BREAK AWAY AT THETIME THAT A PERSON IS ENTERING OR EXITING THE VEHICLES.
The remedy
REPLACE INCORRECTLY DESIGNED STEPS, REPLACE INCORRECT BOLTS.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Oshkosh B Series | 1981, 1982, 1983 |
| Oshkosh S-Series | 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990 |
Components: STRUCTURE
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Oshkosh B Series | 1981 | 0 | 2 |
| Oshkosh B Series | 1982 | 0 | 2 |
| Oshkosh B Series | 1983 | 0 | 2 |
| Oshkosh S-Series | 1983 | 0 | 3 |
| Oshkosh S-Series | 1984 | 0 | 4 |
| Oshkosh S-Series | 1985 | 0 | 3 |
| Oshkosh S-Series | 1986 | 0 | 2 |
| Oshkosh S-Series | 1987 | 0 | 2 |
| Oshkosh S-Series | 1988 | 0 | 2 |
| Oshkosh S-Series | 1989 | 0 | 1 |
| Oshkosh S-Series | 1990 | 0 | 1 |
Other structure recalls in 1991
9 of the 220 recall campaigns reported to NHTSA in 1991 concerned the structure; OSHKOSH TRUCK CORPORATION filed 62 campaigns in all.
| 91V199000 15 Nov 1991 | COLLINS BUS CORPORATION |
| 91V165000 23 Sept 1991 | GENERAL MOTORS CORP. |
| 91V145000 4 Sept 1991 | FORD MOTOR COMPANY |
| 91V135000 19 Aug 1991 | GENERAL MOTORS CORP. |
| 91V136000 19 Aug 1991 | FORD MOTOR COMPANY |
| 91V127000 24 Jul 1991 | FREIGHTLINER CORPORATION |
| 91V028000 13 Feb 1991 | MAZDA (NORTH AMERICA),INC |
| 91V026000 12 Feb 1991 | FORD MOTOR COMPANY |
NHTSA recalls (public domain) · all recalls of 1991