All changes to tower
| Date | Change | Source |
|---|---|---|
| 14 Dec 2014 | 1-6: nominal added; 3: wt amended | Tim Jackson via 00011020 |
| 4 Jun 2013 | Tenor wt shown as per G&J records NOT tower notice | JCB, CJP, AAJB, NWB, et al via pNBR |
| 20 May 2013 | 1-6: frame id added; frame info added; 3 wt amended | John Adams via e-mail |