Purpose of visit | Type of vessel | |||
tug | supply | crew | Total | |
Shaft failure | 17 | 89 | 35 | 141 |
Gearbox failure | 7 | 52 | 14 | 73 |
Shaft/gearbox failure | 5 | 21 | 10 | 36 |
Maintenance | 5 | 32 | 12 | 49 |
Total | 34 | 194 | 71 | 299 |