At the last count, 14 labour unions had written to their members, directing them to join the shutdown.
The warning strike is a last resort to pressure the government to rescind its decision over the recent mass sack of workers.
Earlier, sources had informed our correspondent that government officials and labour leaders had been in talks on how to avert the strike action.
The talks apparently fell apart, with the Kaduna State Government on Saturday warning that it would not be blackmailed by a proposed strike action, and directed civil servants to report for work on Monday.
We’ll not succumb to blackmail – Govt
Many trade unions have also pledged their resolve to join the strike.
Among them is the Nigerian Union of Railway Workers (NUR), the Nigerian Union of Electricity Employees (NUEE), the Nigerian Union of Teachers (NUT), which had issued separate notices to join the one-week strike.
While the aviation unions are vowing to shut down the airport, the NUR also said it would shut down the Abuja-Kaduna Train Service (AKTS).
In a letter dated 14th May 2021 to the Managing Director of the Federal Airports Authority of Nigeria (FAAN), the aviation unions informed that they would proceed on the action in compliance with the NLC’s directive with effect from midnight of Sunday, the 16th of May, 2021 to midnight of Friday the 21st of May.