PHOENIX (AP) — A man has been arrested after climbing a fence at the Phoenix airport on Christmas Day and running out to a plane that had just landed, police said Thursday.

Robert Edward Bump, 49, got onto the taxiway around 5:30 p.m. Wednesday and started banging on the engine of a Southwest Airlines plane, Phoenix police spokesman Officer James Holmes said.

No injuries were reported, and Holmes said passengers were never in danger.

In New Jersey, a man was arrested Wednesday after authorities found him on the tarmac of Newark Liberty Airport. It's not clear how 24-year-old Siyah Bryant of Jersey City ended up on the tarmac. A phone number for Bryant, who is charged with trespassing, couldn't be located.

Workers in the airport's tower had spotted a man climbing the fence and running onto the tarmac and then the taxiway near Terminal 3 at Phoenix Sky Harbor International Airport. The pilot was alerted of the man's presence and turned off the engines before he reached the aircraft.

Bump showed signs of drug and alcohol impairment and was booked on a misdemeanor of charge of entering a restricted area at the airport, Holmes said.

It was not immediately clear whether Bump remained in police custody or whether he had a lawyer. Police said Bump is homeless.

Security on the airport's runway system has been breached in the past.

In November 2012, a woman rammed through a partially open gate at the Phoenix airport and drove on the runway with her infant son in the car.

Also, Sky Harbor spent $10 million to upgrade its perimeter security and access gates after a man being chased by police in 2005 crashed a stolen pickup through a gate and drove onto the runways, passing several jets on a taxiway.

It's not known whether the airport has a perimeter intrusion detection system consisting of ground and motion sensors and closed-circuit cameras. Sky Harbor officials declined to comment on the security breach and referred questions to Phoenix police, who said they won't talk specifics about the airport's security.

Jeff Price, an aviation professor at the Metropolitan State University of Denver and former assistant security director at Denver International Airport, said perimeter intrusion detection systems might be needed at the nation's larger airports as an extra layer, given their prominence and volume of passengers.

Still, installing such a detection system is no guarantee that breaches will be avoided. "There's no such thing as airtight security," Price said.

Price said it looked as though people working in the airport tower did as they were supposed to by responding quickly. While perimeter fences are a key part of airport security, Price said an airport relies on many layers of security, including workers required to challenge and report people on air fields who don't have security badges.

___

Correspondent Geoff Mulvihill contributed to this report from Trenton, N.J.

Also on HuffPost:

Loading Slideshow...
  • Joshua K. Pinney

    This gentleman allegedly tried to commit identify theft while sporting what may be the worst disguise ever. Cops say he was trying to impersonate the man whose picture appeared on a driver's license he had stolen. <a href="http://www.huffingtonpost.com/2012/10/19/joshua-k-pinney-identity-theft_n_1987834.html" target="_blank">Read the whole story here.</a>

  • Domonique Pinkard

    This alleged robber was found snoozing on the couch of a home that police say he and a friend had just robbed. When questioned by cops, they say Pinkard told them he needed a nap because he had been "working hard all day." <a href="http://www.huffingtonpost.com/2013/07/09/domonique-pinkard-falls-asleep-robbing-home_n_3566564.html" target="_blank">Read the whole story here.</a>

  • Kenneth Webster Enlow

    This Oklahoma man got into deep doo-doo -- LITERALLY -- when police say he hid inside a feces-filled septic tank so he could spy on women in a ladies' bathroom. <a href="http://www.huffingtonpost.com/2013/07/08/kenneth-webster-enlow-septic-tank-spies-_n_3562103.html" target="_blank">Read the whole story here. </a>

  • Christopher Sharp

    This Floridian allegedly faked being a Sheriff's deputy for 6 months in an effort to impress his girlfriend. He really worked at Pizza Hut, but police say he would leave home every morning in a stolen deputy's uniform, then don the uniform again before coming back. Acquaintances say he would tell stories that occurred "on the job" and even give legal advice. <a href="http://www.huffingtonpost.com/2013/02/27/christopher-sharp-impersonates-deputy-cop-impress-girlfriend_n_2773526.html" target="_blank">Read the whole story here. </a>

  • Matthew Scheidt

    At the age of just 17, Matthew Scheidt fooled a hospital full of people into believing that he was a physician assistant, dressing wounds, examining disrobed patients and even performing CPR. After he was caught, he bonded out of jail and was arrested a couple of months later for allegedly impersonating a police officer. <a href="http://www.huffingtonpost.com/2012/11/15/matthew-scheidt-impersonates-physicians-assistant_n_2137948.html" target="_hplink">Read the whole story here.</a>

  • Michael Belton

    Belton lost his wig, sunglasses and $115,000 worth of casino chips when security wrestled him to the floor during a botched weekend heist, according to authorities.

  • Joseph Lawrence Borowiak

    Police in Michigan say a man claimed he was royalty before trying to steal a pack of Marlboros from a 7-Eleven. Joseph Lawrence Borowiak is charged with strong-arm robbery and resisting arrest after allegedly wrestling a store clerk over a pack of cigarettes. Borowiak reportedly stated, "The king doesn't pay for cigarettes."

  • Nichlous Peternik

    The hand of justice makes an appearance in this mug shot. Nichlous Peternik -- and the arm of a law enforcement official in Redding, Calif. -- are featured prominently in this memorable booking photo taken after Peternik was arrested on suspicion of burglary. Officials say they were forced to reach into the frame when Peternik refused to pull his hair back from over his face.

  • Juan Aguirre

    Even if Juan Aguirre got away, he would have ended up empty handed. Police said the 21-year-old Kansan stole six empty DVD boxes from a local adult entertainment shop.

  • Gregory Liascos

    This camouflage might work well in nature, but it really stands out in the police station. Oregon investigators believe Gregory Liascos, 36, was wearing this "ghillie" camouflage when he attempted to break into the Rice Northwest Museum of Rocks and Minerals last week. After setting off alarms, the suspect allegedly fled into a wooded area nearby. Officers only found Liascos when a police dog bit what appeared to be a patch of grass -- which yelped in pain. On Oct. 12, 2011, authorities said Liascos failed to show up for his trial. A warrant has been issued for his arrest.

  • Ranaldo Jack

    Authorities in Georgia found Ranaldo Jack stuck in a woman's chimney. He was charged in connection with an attempted burglary. <a href="http://www.huffingtonpost.com/2011/11/17/man-stuck-in-chimney-arrested_n_1099252.html" target="_hplink">Read more.</a>

  • Oneal Morris

    Oneal Morris is accused of posing as a doctor and filling a women's buttocks with cement, mineral oil and flat-tire sealant. The woman wanted to work at a nightclub and searched for someone who could perform plastic surgery at a cheap price to give her a curvier body. Police say Oneal was was born a man but identifies as a woman. <a href="http://www.huffingtonpost.com/2011/11/20/butt-implants-fake-doc_n_1103933.html" target="_hplink">Read more.</a>

  • Mark Loescher

    Those who attempt to arrest Mark Loescher have their work cut out for them. When he was arrested for assault, he not only told officers that he was Elvis Presley's brother, a friend of President Bush, and director of the CIA, but he was also half-orangutan. Read more <a href="http://www.huffingtonpost.com/2012/02/21/mark-loescher-says-hes-half-orangutan_n_1290576.html" target="_hplink">here.</a>

  • Jason Engel

    Jason Engel, 21, of Pittsburgh, was arrested after he skipped a court hearing on charges that he stole $400 from a 2-year-old's piggy bank. Read more <a href="http://www.huffingtonpost.com/2012/03/01/jason-engel-steals-from-piggy-bank_n_1313144.html?ref=crime&ir=Crime" target="_hplink">here.</a>

  • Michael Baker

    Michael Baker was arrested after posting a Facebook photo of himself stealing gas from a police car in Jenkins, Ky. <a href="http://www.huffingtonpost.com/2012/04/19/michael-baker-stole-gas-cop-car-facebook-photo-kentucky_n_1437057.html" target="_hplink">Read more.</a>

  • Raymond Carl Knudson

    Raymond Carl Knudson pleaded guilty June 25 to sticking up a Bank of America branch in April, a crime he confessed within minutes of committing.

  • Houaka Yang

    Houaka Yang, 20, of Wisconsin, accidentally videotaped his confession and identified himself on tape with a camcorder he stole. Once the video camera was recovered, the victim uploaded <a href="http://www.youtube.com/watch?feature=player_embedded&v=wmY_gFcBsvw" target="_hplink">Yang's clip to YouTube.</a>