Ask an owner why a crew change slipped and you will usually hear about the airline. Ask the desk that booked it and you hear something duller and far more common: a certificate that lapsed while nobody was looking, a visa appointment that took eleven days instead of four, a medical that was valid on the day of booking and expired on the day of travel.
None of those are travel problems. They are calendar problems, and they are the reason a relief that looked comfortable on Monday becomes a scramble on Thursday.
The three-week rule
Most of what goes wrong is visible three weeks out. That is long enough to renew a medical, long enough to sit a short refresher, long enough to rebook a flight without paying for the privilege. It is not long enough to replace a certificate of competency, which is why the ones with long lead times get watched on a different clock entirely.
So the question a desk should be able to answer on any given morning is not whether the crew are booked. It is which documents in the current rotation expire inside the next ninety days, and who owns each one.
What we check before we confirm a name
- Certificate of competency and every endorsement the flag requires against it
- Medical fitness, checked against the date of joining rather than the date of booking
- Basic safety training and any vessel-specific refresher the operation calls for
- Visa and transit requirements for every leg, not only the destination
- Seaman's book, passport validity, and the six-month tail most states still want to see
It is an unglamorous list. It is also the difference between a relief that happens and a vessel that sails short.
Where the real cost sits
A missed relief is rarely one cost. It is the rebooked flight, then the hotel, then the hours the existing crew works past the point where the rest hours still add up, then the conversation with the charterer about why the window moved. By the time it lands on a schedule it does not look like a paperwork problem any more.
The flight is the last thing to go wrong, and the only thing anybody remembers.
Which is why we would rather be dull about it early. Tell us the vessel, the rank and the window, and the first thing we will come back with is the expiry list — not a shortlist.
