The Chinese Grand Prix, after a five-year absence, faced an unexpected problem. The FIA is currently conducting a thorough investigation into the origin of two grass fires that occurred during the first day in Shanghai, one of which resulted in a red flag being raised. The first incident occurred within Turn 7 during FP1, causing a temporary interruption in proceedings. Although the fire itself was small and easily controlled, its proximity to the curb justified the red flag. The fire reignited at the end of SQ1 in the same location, but since the session had already ended, no red flag was needed. However, there was a brief delay before the start of SQ2 while the scene was being inspected.
The FIA provided a preliminary explanation, suggesting that sparks emitted by the cars ignited the grass in the runoff area. However, this explanation is not definitive or comprehensive. Although the sparks seemed to be the trigger, as they were produced when the cars passed over a bump on the track near a tunnel, this alone is usually insufficient to start a fire. Furthermore, the grass was not excessively dry, as it had rained before the session and rained heavily on Wednesday. Consequently, it is suspected that there was something flammable in the grass in that area, which caused the fire.
The initial inspection by the FIA after SQ1 did not reveal any such cause. However, there is a working hypothesis that a small amount of gas may have been released from the marsh under the circuit and ignited by the sparks. Further investigations are needed to test this possibility. If this hypothesis is confirmed, measures may be taken to ventilate any potential pockets of gas from the marsh and prevent the recurrence of the incident.
Regardless of the cause, appropriate actions will be taken if a definitive explanation is found. However, it will be impossible to prevent cars from emitting sparks in this area. The concern now is whether this problem will persist throughout the remainder of the Chinese Grand Prix weekend. If this happens during a race, it will be even more frustrating than during practice or qualifying sessions.
