At 20:00 on 30 November, Việt Minh forces from 9 battalions attacked P.A. 22 bis and 24, respectively located east and west of the entrenched headquarters. P.A. 22 bis, defended by a company of the 2nd Thai battalion (BT2) was overrun by the 115th battalion (165/312) after nine hours of relentless attacks, of the 225 men defending the P.A., only one squad was able to escape back to the airfield. P.A. 24 resisted three hours of constant attacks by the 102/308 before surrendering.