A 5-foot-long chunk of airplane debris found near the World Trade Center site is believed to be a piece of landing gear from one of the planes that hit the towers more than 11 years ago, NBC 4 New York first reported.
Police confirmed Friday that the part was found wedged between two buildings in a very narrow alley only about 18 inches wide between the rear of 50 Murray St. and back of 51 Park Place, the site where a mosque and community center has been proposed three blocks from ground zero.
The part bears a "Boeing" stamp, followed by a series of numbers, as seen in an exclusive photo obtained by NBC 4 New York.
Police Commissioner Ray Kelly visited the alley Friday evening and viewed the debris from about 30 feet away.
"It brings back terrible memories to anyone who's here, and obviously I think the families could very well be impacted by this finding," he said.
Kelly described the piece as being about 5 feet by 4 feet and around 17 inches high, lying in a "very, very narrow, confined area."
"It's difficult to get in there and see," he said.
He said there was rope intertwined in part of the gear, and there were no marks on the buildings indicating the piece hit the walls on the way down.
"It would have had to fall down at a certain angle," said Kelly.
Asked whether he was surprised to see such a large plane part anchored in such a tight area, Kelly said: "If you see how confined this space is, and you realize the chaos that existed down here on this street, it's not surprising. It's very, very confined. No cleanup went on in this 18-inch space between these two buildings."
The NYPD said the landing gear was found after surveyors hired by the property owner inspecting the rear of 51 Park Place called police on Wednesday. See below for a map.
Police spokesman Paul Browne said the NYPD has secured the location "as it would a crime scene," and investigators are photographing the scene and restricting access until the medical examiner completes a health and safety evaluation.
Officials said the soil below the piece of debris could also be searched for remains.
Police officials say the part could be difficult to remove, and may require demolition work that would destroy the two surrounding buildings. Officials are expected to be back at the scene on Monday to see if it can be removed.
"It really is a historical artifact," Kelly said.
On Sept. 11, American Airlines flight 11 hit the north tower at 8:46 a.m., and United flight 175 hit the south tower at 9:03 a.m.
The rubble from the 9/11 attack was cleared from the 16-acre site by the spring of 2002. Other debris, including human remains, has been found scattered outside the site, including on a rooftop and in a manhole, in years since.
A Boeing representative declined comment.
