A Boeing 777 aircraft of Air India has been grounded as a small crack was observed on the bottom right corner of one of its entry doors after the plane landed at San Francisco airport in the U.S., the airline said on Monday.

The national carrier said it had made alternative arrangements for 100 of the 210 passengers who were supposed to take the return flight on the same aircraft.

“B777 aircraft, VT-ALH arrived in SFO (San Francisco) on AI 183. During walk around inspection on arrival, a small cut /crack on bottom right corner of left side #2 entry door (sic),” said an Air India spokesperson.

“Air India is trying to get help from the local aircraft maintenance repair agencies, failing which men and material would be sent from India,” a spokesperson said.

The Delhi-San Francisco flight has the code of AI183, while the return flight has the code of AI184.

“In AI 184, there are 210 pax [passengers]. Out of which 50 are shifted to AI174. 50 are shifted to other airlines. About 25 pax are cancelled their journey by own. Remaining pax are undecided,” the spokesperson added.

Just like AI184, the AI174 flight is also a non-stop Air India flight from San Francisco to Delhi.