I'm thinking that might be less likely as well. Did a little research in the old Airships thread and the speculation was that the repair status of the ships didn't affect the actual voyage as so much as it just barred you from initiating them. Like I said, I'll keep running the fit and see if it was due to the Surveillance being too low. From the reports in this thread, I've only seen 175 Surveillance boats confirmed to have picked up the Otter.