Only hours after a helicopter crashed onto the roof of a midtown high-rise, killing its pilot, the debate over chopper travel above Manhattan was gaining altitude.

“It is too densely populated, it is too dangerous and there is no safe place to land. If you have a problem, it is not safe to crash in the water, it’s not safe to land in the streets or on the rooftops,” said Congresswoman Carolyn Maloney at a press conference she held Monday.

Six helicopters have crashed in the city in 12 years, including a sightseeing chopper that went down in the East River last year, killing five people. That crash led to a ban on door-less chopper tours. Now, Congresswoman Maloney wants more sweeping restrictions.

“I say all ‘non-essential’ flights, the definition is up to consideration and debate,” she explained.

Two years ago, the de Blasio administration struck a deal with operators cutting the number of sightseeing flights in half, to thirty-thousand a year.

But, Monday’s crash was not a sightseeing tour. The chopper had carried an executive from Westchester County to East 34th Street. The pilot then took off for New Jersey but crashed 11 minutes later in poor weather.

“There needs to be a conversation, should the reduction go even further. This wasn’t a tourist flight. And the conversation is, do we need as many commercial flights?” said City Council Speaker Corey Johnson.

It's not clear how many commercial flights are in the city's skies and some elected officials want answers from the city's Economic Development Corporation, which manages two of Manhattan’s three heliports.

“All I’m asking for is our city agency which oversees the heliports to take a look at the economic impact and the safety impact of restricting more flights,” said Council Member Keith Powers, who represents the area of Manhattan where Monday’s crash happened.

Aviation experts say the city could negotiate new restrictions with operators, but an outright ban on non-essential chopper travel would likely require federal action. Some oppose new restrictions.

“We need more enforcement. The regulations that are in effect are quite precise and concise,” said Alan Yurman, a retired NTSB investigator.

But the skies could become more crowded with Uber's launch of on-demand helicopter trips in July between lower Manhattan and JFK Airport. And the Mayor Bill de Blasio isn't yet onboard with the idea.

“I don’t want to see an uptick in helicopter traffic in the city, I don’t think that’s good for New York City,” de Blasio said.