T2CAS - Garuda 152 revisited
The Sukhoi SJ100 has T2CAS fitted, which allegedly offers greater protection to CFIT.
A good point was made earlier about regional data feeds to the EGPWS. Common and commercial sense suggests a Demo aircraft would have all its tricks on show to potential purchasers.
So, why did the T2CAS not alert the Test Pilots to the impending ridge?
Recall Garuda 152 A300 CFIT where the GPWS functionality was called into question.