Two messages

See this code & tell me why it is displaying message "t2" two times?

REPORT Z_FLIGHT_DEPART.

data wa_flight type sflight.

"Data text type string value 'list is going to be displayed'.

Data I type integer.

Data t2 type string value 'List has been displayed for a short time'.

"Message text type 'I'.

select * from sflight into wa_flight up to 5 rows.

i = i + 1. " coz select is a loop so it increments i each loop pass.

new-line.

"uline.

write:

wa_flight-carrid,

wa_flight-connid,

wa_flight-fldate,

wa_flight-seatsocc,

wa_flight-seatsmax.

write i. "it writes the value of each loop pass.

endselect.

Message t2 type 'I'.

if i = 5 .

Message t2 type 'I'. "This message is displayed two times Why?

endif.