Jakarta – Lawmakers slammed Wednesday an invitation by from House Speaker Agung Laksono for legislators to participate in a launch of budget airline AdamAir's new flights in Singapore.

"(Participating in the event) could constitute a conflict of interest," House transportation commission member Afni Ahmad of the National Mandate Party said Wednesday.

Agung, who is AdamAir's commissioner, should publicly explain why he had invited House members to the launch in his capacity as speaker, Afni said.

AdamAir was recently brought to the attention of the House's transportation commission after one of its aircraft was lost in the air for two hours last month and had to make an emergency landing in Tambolaka, East Nusa Tenggara.

An investigation into the incident has not yet been released. Commission chairman Ahmad Muqawwam said Agung had opened himself to allegations of abuse of power by inviting lawmakers to the ceremony in his capacity as House speaker.

"It wouldn't be a problem if he invited us in his capacity as AdamAir's commissioner," Ahmad said.