# NHTSA Engineering Analysis EA89018
> **PARKING BRAKE FAILURE** · Opened 1989-03-17 · Closed 1990-02-13
## Investigation
- **Action number:** EA89018
- **Type:** Engineering Analysis
- **Open date:** 1989-03-17
- **Close date:** 1990-02-13
- **Manufacturer:** John Deere
- **Affected makes:** JOHN DEERE
- **Affected components:** SERVICE BRAKES, HYDRAULIC
- **Affected model years:** 1986, 1987, 1988, 1989
- **Affected (make, year) variants:** 12
## Summary

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## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=EA89018)
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