Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 5 Jan 1989 | Harrow | 2 | 1 | Slight |
| Fri 13 Jan 1989 | Harrow | 2 | 1 | Slight |
| Sat 14 Jan 1989 | Harrow | 1 | 1 | Slight |
| Sat 14 Jan 1989 | Harrow | 1 | 1 | Slight |
| Tue 17 Jan 1989 | Harrow | 2 | 1 | Slight |
| Tue 17 Jan 1989 | Harrow | 1 | 1 | Slight |
| Thu 19 Jan 1989 | Harrow | 2 | 1 | Slight |
| Fri 20 Jan 1989 | Brent | 2 | 1 | Slight |
| Sat 21 Jan 1989 | Brent | 2 | 1 | Slight |
| Wed 1 Feb 1989 | Ealing | 2 | 1 | Slight |
| Fri 3 Feb 1989 | Brent | 1 | 1 | Slight |
| Fri 3 Feb 1989 | Brent | 2 | 1 | Slight |
| Wed 8 Feb 1989 | Ealing | 2 | 2 | Slight |
| Wed 15 Feb 1989 | Brent | 1 | 2 | Fatal |
| Fri 24 Feb 1989 | Ealing | 3 | 2 | Slight |
| Thu 2 Mar 1989 | Ealing | 2 | 1 | Slight |
| Fri 3 Mar 1989 | Harrow | 3 | 2 | Slight |
| Mon 13 Mar 1989 | Brent | 2 | 1 | Slight |
| Fri 17 Mar 1989 | Brent | 2 | 1 | Slight |
| Sat 18 Mar 1989 | Harrow | 1 | 1 | Slight |
| Sun 19 Mar 1989 | Harrow | 2 | 1 | Slight |
| Tue 21 Mar 1989 | Brent | 2 | 1 | Slight |
| Thu 23 Mar 1989 | Brent | 4 | 3 | Slight |
| Fri 24 Mar 1989 | Brent | 2 | 1 | Slight |
| Wed 29 Mar 1989 | Brent | 1 | 1 | Slight |
| Sun 2 Apr 1989 | Ealing | 2 | 1 | Slight |
| Sat 22 Apr 1989 | Brent | 2 | 1 | Slight |
| Tue 2 May 1989 | Ealing | 2 | 1 | Slight |
| Sat 6 May 1989 | Harrow | 1 | 1 | Slight |
| Mon 8 May 1989 | Brent | 1 | 1 | Slight |
| Wed 10 May 1989 | Ealing | 2 | 1 | Slight |
| Tue 16 May 1989 | Harrow | 1 | 1 | Slight |
| Thu 18 May 1989 | Ealing | 2 | 2 | Slight |
| Tue 30 May 1989 | Harrow | 1 | 1 | Slight |
| Sat 3 Jun 1989 | Ealing | 2 | 2 | Slight |
| Thu 8 Jun 1989 | Brent | 1 | 1 | Serious |
| Fri 9 Jun 1989 | Brent | 1 | 1 | Slight |
| Mon 19 Jun 1989 | Harrow | 1 | 1 | Slight |
| Thu 29 Jun 1989 | Brent | 2 | 2 | Slight |
| Tue 18 Jul 1989 | Ealing | 2 | 1 | Slight |
| Wed 19 Jul 1989 | Harrow | 1 | 1 | Slight |
| Fri 21 Jul 1989 | Brent | 1 | 1 | Slight |
| Fri 28 Jul 1989 | Ealing | 2 | 1 | Slight |
| Fri 28 Jul 1989 | Harrow | 2 | 1 | Slight |
| Sat 29 Jul 1989 | Brent | 2 | 1 | Slight |
| Tue 8 Aug 1989 | Harrow | 2 | 1 | Slight |
| Sat 19 Aug 1989 | Brent | 2 | 1 | Slight |
| Wed 23 Aug 1989 | Ealing | 2 | 1 | Slight |
| Wed 23 Aug 1989 | Harrow | 2 | 2 | Slight |
| Tue 5 Sep 1989 | Harrow | 1 | 1 | Serious |
| Fri 8 Sep 1989 | Harrow | 1 | 1 | Serious |
| Sun 17 Sep 1989 | Brent | 2 | 1 | Slight |
| Fri 22 Sep 1989 | Ealing | 1 | 1 | Slight |
| Mon 25 Sep 1989 | Brent | 1 | 1 | Slight |
| Tue 26 Sep 1989 | Brent | 2 | 2 | Slight |
| Wed 27 Sep 1989 | Brent | 2 | 1 | Slight |
| Wed 18 Oct 1989 | Ealing | 3 | 1 | Slight |
| Wed 18 Oct 1989 | Ealing | 1 | 1 | Slight |
| Fri 20 Oct 1989 | Harrow | 2 | 1 | Slight |
| Sat 21 Oct 1989 | Harrow | 1 | 2 | Slight |
| Sun 22 Oct 1989 | Brent | 2 | 1 | Slight |
| Mon 30 Oct 1989 | Ealing | 1 | 1 | Fatal |
| Sat 4 Nov 1989 | Brent | 3 | 2 | Serious |
| Wed 8 Nov 1989 | Harrow | 2 | 2 | Slight |
| Wed 8 Nov 1989 | Harrow | 2 | 2 | Slight |
| Wed 15 Nov 1989 | Harrow | 1 | 1 | Slight |
| Thu 16 Nov 1989 | Brent | 2 | 1 | Serious |
| Fri 17 Nov 1989 | Brent | 2 | 2 | Slight |
| Sun 26 Nov 1989 | Brent | 3 | 1 | Slight |
| Sun 26 Nov 1989 | Brent | 2 | 1 | Slight |
| Thu 30 Nov 1989 | Brent | 2 | 1 | Slight |
| Fri 1 Dec 1989 | Brent | 2 | 1 | Slight |
| Mon 4 Dec 1989 | Harrow | 2 | 1 | Slight |
| Mon 4 Dec 1989 | Brent | 2 | 2 | Serious |
| Mon 4 Dec 1989 | Ealing | 1 | 1 | Serious |
| Tue 5 Dec 1989 | Brent | 1 | 1 | Slight |
| Fri 8 Dec 1989 | Ealing | 2 | 1 | Slight |
| Tue 12 Dec 1989 | Brent | 2 | 1 | Slight |
| Fri 15 Dec 1989 | Brent | 1 | 1 | Serious |