DECLINE AND FALL OF THE FDNY: Woman to become NY fireman despite failing crucial fitness test.

The FDNY for the first time in its history will allow someone who failed its crucial physical fitness test to join the Bravest, The Post has learned.

Rebecca Wax, 33, is set to graduate Tuesday from the Fire Academy without passing the Functional Skills Training test, a grueling obstacle course of job-related tasks performed in full gear with a limited air supply, an insider has revealed.

“They’re going to allow the first person to graduate without passing because this administration has lowered the standard,” said the insider, who is familiar with the training.

Upon graduation, Wax would be assigned to a firehouse and tasked with the full duties of a firefighter.

Some FDNY members are angry.

“We’re being asked to go into a fire with someone who isn’t 100 percent qualified,” the source said. “Our job is a team effort. If there’s a weak link in the chain, either civilians or our members can die.”

Earlier: FDNY drops physical test requirement amid low female hiring rate.

Even earlier: “Unfireable” female fireman finally quits after failing timed running test for the sixth time.

Related: Swedish Equalism Endangering Lives. “Since the late 90s, Sweden has mandated equality in firefighting jobs, which has required a severe lowering of physical standards to bring women into the force. According to Dispatch International, a Swedish magazine, female firefighters take more than ten times as long to open reinforced doors, which would leave most people dead if they were trapped in a burning apartment for that long.”