When you say "crashed" what do you mean? Is the tran log backup file corrupt and unable to be restored? Where are you trying to restore this backup?
Are you doing a full point-in-time recovery of the primary database, i.e. is this a disaster recovery scenario? Or is this maybe for a log shipping secondary server? If the latter you can use the differential backup to bring the secondary lsn up to date with the primary and basically skip all the tran log backups.
There are no special teachers of virtue, because virtue is taught by the whole community. --Plato