Thirty days after being launched in mid-3067, the Ilsa Hyung suffered a catastrophic explosion in its engineering compartment, severely damaging both the transit and KF drive, with Capellan officials claiming it was due to a Free Capella terrorist attack. Effectively crippled, the ship was forced to return to its shipyards for extensive repairs.   It was over the course of these repairs that the Ilsa Hyung was modified from its original design.
In October of 3068, the ship took part in the liberation of Randar, where it supported the Holdfast Guard in destroying a majority of the Davion 20th Avalon Hussars. The Ilsa Hyung also took part in the Capellan defense of Sian in September 3070.
The Ilsa Hyung was one of the first two WarShips of her class to receive the 3070 upgrade package for the Feng Huang-class cruiser. She was then directly involved in the third attempt to recapture Pleione from the Word of Blake Protectorate, a battle which was launched on the 30th of May the same year. Despite the orbital bombardment, the fall of Pleione's capital and the public execution of the pro-Blakist leadership on the planet at the hands of Capellan troops, the fighting continued until the 10th of June. As a part of their May/June attack, the CCAF deployed a substantial ground force, which, according to the Capellan media consisted of Warrior House Hiritsu, the Harloc Raiders and Roman's Mounted Fusiliers.
- Field Manual: Updates, p. 19 "Capellan Confederation - Changes of Fortune - Naval Assets"
- Technical Readout: 3067, p. 212 "Feng Huang (Cruiser)"
- Jihad Hot Spots: 3070, p. 25, "Confederation Strikes Back!"
- Jihad Hot Spots: 3070, pp. 111-112 & Blake Ascending, pp. 271-272, "Word of Blake Returns to Sian!"
- Jihad Hot Spots: 3072, p. 25, "Timeline of the Jihad"
- Jihad Turning Points: Sian, p. 18, "Feng Huang (Upgrade) Cruiser record sheet".
- Jihad Hot Spots: Terra, p. 73, "News From Pleione"
- Jihad: Final Reckoning, p. 59, "The Jihad in Review"
- Jihad Hot Spots: Terra, p. 89, "Chaos Eternal: Pound of Flesh"
- Jihad Hot Spots: Terra, p. 77-78, "Pleione Secured"
- Field Manual: 3145, p. 28 "Capellan Confederation - General Review - The Sea of Stars"