# NHTSA Preliminary Evaluation PE91011
> **BRAKE CHAMBER SEPARATION** · Opened 1990-11-08 · Closed 1991-03-05
## Investigation
- **Action number:** PE91011
- **Type:** Preliminary Evaluation
- **Open date:** 1990-11-08
- **Close date:** 1991-03-05
- **Manufacturer:** ARVINMERITOR AUTOMOTIVE
- **Affected makes:** ROCKWELL
- **Affected components:** SERVICE BRAKES, HYDRAULIC
- **Affected model years:** 1983, 1984, 1985, 1986, 1987, 1988
- **Affected (make, year) variants:** 6
## Summary

There is no summary currently available

## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=PE91011)
---
*AI Analytics · CC0 1.0*