Reminds me of one of our aircraft becoming unserviceable at a joint IAF/civil airport which we visited regularly.
Our aircraft could be fixed by fitting a blanking plate to a hydraulic line but it had to be manufactured locally.
The Base Commander had aircraft spares awaiting shipment from the UK which he knew would be delayed by customs procedures at a well known Western Indian airport.
The serendipity of the situation was not lost on either the IAF Base Commander or our Captain and both problems were resolved