Really?
The availability rate of the Su-30MKI was reported to Parliament as being over 60% and that was many years ago when Manohar Parrikar was our Defence Minister.
Serviceability of IAF Su-30MKI rises to 60%- Manohar Parrikar
How high is the PAF's F-16 availability? And provide sources for your claim.
Despite sanctions on Pakistan in 1990s PAF managed to clock 270+ hours per F-16 from 1994 to 2005. The hours has significantly increased knowing PAF has sufficient spare parts supply after new F-16 deal in 2008-2012. This time PAF bought enough spare parts to last them decades even if US sanctions Pak.
F-16 Fighting Falcon News
Pakistani F-16s reach 100,000 accident free flight hours
October 4, 2005 (by Asif Shamim) -
A three-member delegation of Pratt & Whitney called on Air Chief Marshal Kaleem Saadat, Chief of the Air Staff Pakistan Air Force at Air Headquarters to present a plaque to the Chief of the Air Staff in recognition of flying the F-16, for over 100,000 accident-free flight hours.
Lloyd W. "Fig" Newton, executive vice president, presented a plaque to the Chief of the Air Staff in recognition of flying the F-16, for over 100,000 accident-free flight hours.
They also commended the maintenance, quality control and flight safety standards of the
PAF, which made this achievement possible.
Retired Gen. Lloyd Newton, along with Gen. (R) William J Begert, Vice President and Warren Boley, Vice President, remained with Air Chief Marshal Kaleem Sadaat, Chief of Air Staff for some time and discussed matters pertaining to mutual and professional interest.
So from last crash to 2005 puts each F-16 at 270+ hours per year.
Here is something interesting
So IAF Su-30 total service life is just 6000 hours
For 30 years in service would be 200 hours per year
or 40 years of service would be just 150.
https://www.business-standard.com/a...-hal-s-growing-capability-114102300636_1.html
A Su-30MKI is overhauled after flying 1,500 hours or 14 years, whichever is earlier. Over its total service life of 6,000 flying hours or 30-40 years, each fighter undergoes three overhauls. Eventually, the IAF's fleet of 272 Su-30MKIs will undergo 816 overhauls - three per fighter.
And like you mentioned, 60% of Su-30 fleet are grounded due to various reasons in addition to overhauling that it must go no matter what so that means your Su-30 flys half of PAF F-16 per frame.