# NHTSA Preliminary Evaluation PE08028
> **PINTLE HOOK PIN FRACTURES** · Opened 2008-04-21 · Closed 2008-08-29
## Investigation
- **Action number:** PE08028
- **Type:** Preliminary Evaluation
- **Open date:** 2008-04-21
- **Close date:** 2008-08-29
- **Manufacturer:** PREMIER MANUFACTURING
- **Affected makes:** PREMIER MANUFACTURING
- **Affected components:** TRAILER HITCHES
- **Affected model years:** 9999
- **Affected (make, year) variants:** 1
## Summary

TO DATE, INVESTIGATION ACTIVITY HAS CONSISTED OF (1) A JOINT SITE VISIT BY REPRESENTATIVES OF ODI, PACCAR, REDWOOD RELIANCE TRAILER, AND PREMIER MFG CONDUCTED FROM MAY 5 - 8, 2008; (2) FIELD STRAIN GAGE WORK CONDUCTED BY PREMIER MFG; AND (3) INSPECTION OF RETURNED PINS (PINS REMOVED FROM SERVICE AND REPLACED THROUGH CAMPAIGN ACTION) CONDUCTED BY PACCAR.ODI IS UPGRADING THIS INVESTIGATION TO EA08-019 TO ALLOW SUFFICIENT TIME TO APPROPRIATELY ANALYZE AND REVIEW THE DATA COLLECTED.

## Source
- [NHTSA ODI investigation page](https://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=I&searchCriteria.nhtsa_ids=PE08028)
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