# NHTSA Recall 21V284000 — Completion Reports
> **Check Valve Retainer Not Properly Seated/FMVSS 121** · Blue Bird Body Company · Recalled 2021-06-02
## Latest status
- **Affected units:** 1,634
- **Remedied:** 1,352 (82.74%)
- **Unreachable owners:** 0
- **Removed from recall:** 0
- **Latest report:** 2024-01-02 (2023-4)
- **Quarters reported:** 11
## Quarterly progress
| Period | Affected | Remedied | Unreachable | Removed | Completion % | Reported |
|--------|----------|----------|-------------|---------|--------------|----------|
| 2021-2 | 1,634 | 514 | 0 | 0 | 31.46% | 2021-07-01 |
| 2021-3 | 1,634 | 868 | 0 | 0 | 53.12% | 2021-10-01 |
| 2021-4 | 1,634 | 1,116 | 0 | 0 | 68.3% | 2022-01-03 |
| 2022-1 | 1,634 | 1,183 | 0 | 0 | 72.4% | 2022-04-04 |
| 2022-2 | 1,634 | 1,226 | 0 | 0 | 75.03% | 2022-07-01 |
| 2022-3 | 1,634 | 1,258 | 0 | 0 | 76.99% | 2022-10-03 |
| 2022-4 | 1,634 | 1,267 | 0 | 0 | 77.54% | 2023-01-03 |
| 2023-1 | 1,634 | 1,292 | 0 | 0 | 79.07% | 2023-04-03 |
| 2023-2 | 1,634 | 1,326 | 0 | 0 | 81.15% | 2023-07-03 |
| 2023-3 | 1,634 | 1,339 | 0 | 0 | 81.95% | 2023-10-02 |
| 2023-4 | 1,634 | 1,352 | 0 | 0 | 82.74% | 2024-01-02 |
## Source
- [NHTSA recall page](https://www.nhtsa.gov/recalls?nhtsaId=21V284000)
---
*AI Analytics · CC0 1.0*