Interestingly, the IAF has offered to pay the winning bidder an incentive if higher serviceability percentage above the minimum specified is achieved during execution of the contract. And they’ll be penalised if they fall short of the required mark.
Nine IAF Ilyushins which will be undergoing overhaul and total life extension at the time the contract is expected to be awarded will not be included. An additional unspecified number of Ilyushins has remained grounded indefinitely “for want of spares/aggregates which have become unserviceable or expired their TBO/TTL“.
Here’s the full IAF request for information.