Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 12 Jan 1989 | Hillingdon | 1 | 1 | Serious |
| Mon 16 Jan 1989 | Hillingdon | 1 | 1 | Slight |
| Thu 2 Feb 1989 | Hillingdon | 1 | 1 | Slight |
| Tue 7 Feb 1989 | Hillingdon | 1 | 1 | Serious |
| Sat 25 Feb 1989 | Hillingdon | 2 | 2 | Slight |
| Wed 8 Mar 1989 | Hillingdon | 1 | 1 | Slight |
| Sat 18 Mar 1989 | Hillingdon | 2 | 2 | Slight |
| Sun 26 Mar 1989 | Hillingdon | 2 | 1 | Slight |
| Thu 6 Apr 1989 | Hillingdon | 2 | 1 | Slight |
| Fri 14 Apr 1989 | Hillingdon | 1 | 2 | Slight |
| Fri 21 Apr 1989 | Hillingdon | 2 | 1 | Serious |
| Sun 30 Apr 1989 | Hillingdon | 2 | 1 | Serious |
| Tue 16 May 1989 | Hillingdon | 1 | 1 | Slight |
| Wed 24 May 1989 | Hillingdon | 2 | 1 | Slight |
| Sat 3 Jun 1989 | Hillingdon | 2 | 1 | Slight |
| Mon 19 Jun 1989 | Hillingdon | 1 | 1 | Slight |
| Wed 21 Jun 1989 | Hillingdon | 1 | 1 | Serious |
| Fri 23 Jun 1989 | Hillingdon | 2 | 1 | Slight |
| Fri 14 Jul 1989 | Hillingdon | 2 | 1 | Slight |
| Sat 15 Jul 1989 | Hillingdon | 2 | 1 | Slight |
| Tue 18 Jul 1989 | Hillingdon | 2 | 1 | Slight |
| Tue 18 Jul 1989 | Hillingdon | 2 | 1 | Slight |
| Sat 29 Jul 1989 | Hillingdon | 2 | 2 | Slight |
| Mon 31 Jul 1989 | Hillingdon | 2 | 1 | Slight |
| Tue 1 Aug 1989 | Hillingdon | 2 | 2 | Slight |
| Fri 15 Sep 1989 | Hillingdon | 2 | 1 | Slight |
| Sun 24 Sep 1989 | Hillingdon | 2 | 1 | Slight |
| Tue 3 Oct 1989 | Hillingdon | 2 | 1 | Slight |
| Sat 7 Oct 1989 | Hillingdon | 2 | 1 | Serious |
| Wed 11 Oct 1989 | Hillingdon | 1 | 1 | Slight |
| Mon 16 Oct 1989 | Hillingdon | 1 | 1 | Slight |
| Wed 18 Oct 1989 | Hillingdon | 2 | 1 | Slight |
| Tue 31 Oct 1989 | Hillingdon | 2 | 1 | Serious |
| Tue 31 Oct 1989 | Hillingdon | 2 | 1 | Serious |
| Sat 25 Nov 1989 | Hillingdon | 3 | 1 | Serious |
| Wed 29 Nov 1989 | Hillingdon | 2 | 2 | Slight |
| Fri 8 Dec 1989 | Hillingdon | 1 | 1 | Slight |
| Thu 14 Dec 1989 | Hillingdon | 2 | 2 | Serious |
| Tue 19 Dec 1989 | Hillingdon | 1 | 1 | Slight |
| Fri 22 Dec 1989 | Hillingdon | 2 | 1 | Slight |