Airline mechanic Abdul-Majeed Marouf Ahmed Alani in a Florida federal court on Wednesday, September 18.
PHOTO: Sketch by Daniel Pontet
Airline mechanic Abdul-Majeed Marouf Ahmed Alani in a Florida federal court on Wednesday, September 18.
Now playing
02:56
Prosecutors: Mechanic accused of sabotage had ISIS video
New York Gov. Andrew Cuomo speaks during a news conference at a COVID-19 vaccination site in the Brooklyn borough of New York, Monday, Feb. 22, 2021. (AP Photo/Seth Wenig, Pool)
PHOTO: Seth Wenig/Pool/AP
New York Gov. Andrew Cuomo speaks during a news conference at a COVID-19 vaccination site in the Brooklyn borough of New York, Monday, Feb. 22, 2021. (AP Photo/Seth Wenig, Pool)
Now playing
01:12
Gov. Andrew Cuomo responds to allegations of sexual harassment
 Psaki biden White House Khashoggi Saudi Arabia sotu bash vpx _00011629.png
PHOTO: CNN
Psaki biden White House Khashoggi Saudi Arabia sotu bash vpx _00011629.png
Now playing
03:42
Bash to Psaki: Why hasn't Saudi Arabia been held accountable for murder of Khashoggi?
NEW YORK, NY - JULY 23: New York Gov. Andrew Cuomo speaks during the daily media briefing at the Office of the Governor of the State of New York on July 23, 2020 in New York City. The Governor said the state liquor authority has suspended 27 bar and restaurant alcohol licenses for violations of social distancing rules as public officials try to keep the coronavirus outbreak under control. (Photo by Jeenah Moon/Getty Images)
PHOTO: Jeenah Moon/Getty Images
NEW YORK, NY - JULY 23: New York Gov. Andrew Cuomo speaks during the daily media briefing at the Office of the Governor of the State of New York on July 23, 2020 in New York City. The Governor said the state liquor authority has suspended 27 bar and restaurant alcohol licenses for violations of social distancing rules as public officials try to keep the coronavirus outbreak under control. (Photo by Jeenah Moon/Getty Images)
Now playing
04:04
NYT: Second former aide accuses Gov. Andrew Cuomo of sexual harassment
PHOTO: CNN Weather
Now playing
02:23
Over 25 million people under threat for severe storms and flash flooding
House Speaker Nancy Pelosi
PHOTO: House TV
House Speaker Nancy Pelosi
Now playing
02:52
House passes Biden's $1.9 trillion Covid-19 relief package
PHOTO: CNN
Now playing
02:54
'Biggest trial of my life': Landlord says eviction moratorium has drained her savings
Jeremy Lin
PHOTO: Getty Images
Jeremy Lin
Now playing
03:40
Ex-NBA star Jeremy Lin says he's been called 'coronavirus' on the court
covid-19 relief package house biden sot malveaux nr vpx _00000000.png
PHOTO: CNN
covid-19 relief package house biden sot malveaux nr vpx _00000000.png
Now playing
02:28
CNN's Joe Johns explains Biden's short speech as relief bill heads to Senate
Misinformation Trump Capitol March rn orig_00004630.png
Misinformation Trump Capitol March rn orig_00004630.png
Now playing
04:08
These Trump supporters are convinced he will be president again on March 4
PHOTO: Isaac Abrack
Now playing
03:00
Hear from schoolgirl who escaped abduction in Nigeria
AURORA, CO - DECEMBER 15: (EDITORIAL USE ONLY) Rocky Mountain Regional VA Medical Center investigational pharmacy technician Sara Berech holds a dose of the Johnson & Johnson COVID-19 vaccine before it is administered in a clinical trial on December 15, 2020 in Aurora, Colorado. The Johnson & Johnson vaccine could be submitted for emergency use by late January and is the only vaccine among leading candidates given as a single dose. (Photo by Michael Ciaglo/Getty Images)
PHOTO: Michael Ciaglo/Getty Images
AURORA, CO - DECEMBER 15: (EDITORIAL USE ONLY) Rocky Mountain Regional VA Medical Center investigational pharmacy technician Sara Berech holds a dose of the Johnson & Johnson COVID-19 vaccine before it is administered in a clinical trial on December 15, 2020 in Aurora, Colorado. The Johnson & Johnson vaccine could be submitted for emergency use by late January and is the only vaccine among leading candidates given as a single dose. (Photo by Michael Ciaglo/Getty Images)
Now playing
03:19
Doctor who voted to approve Johnson and Johhnson vaccine speaks out
Saudi Crown Prince Mohammed bin Salman attends a conference in the Saudi capital Riyadh on October 2018.
PHOTO: FAYEZ NURELDINE/AFP/Getty Images
Saudi Crown Prince Mohammed bin Salman attends a conference in the Saudi capital Riyadh on October 2018.
Now playing
02:10
US intel report: Saudi Crown Prince responsible for approving Khashoggi operation
PHOTO: CNN
Now playing
02:24
Acosta corrects CPAC organizer: Trump did lose the election
WASHINGTON, DC - JANUARY 17: The U.S. Capitol dome is seen beyond a security fence on January 17, 2021 in Washington, DC. After last week
PHOTO: Michael M. Santiago/Getty Images
WASHINGTON, DC - JANUARY 17: The U.S. Capitol dome is seen beyond a security fence on January 17, 2021 in Washington, DC. After last week's riots at the U.S. Capitol Building, the FBI has warned of additional threats in the nation's capital and in all 50 states. According to reports, as many as 25,000 National Guard soldiers will be guarding the city as preparations are made for the inauguration of Joe Biden as the 46th U.S. President. (Photo by Michael M. Santiago/Getty Images)
Now playing
02:33
This is what's in the $1.9 trillion coronavirus package
PHOTO: CNN
Now playing
09:36
I lost everything: Texas mom's devastating story from winter storm
The Pentagon, the headquarters of the US Department of Defense, located in Arlington County, across the Potomac River from Washington, DC is seen from the air January 24, 2017.  / AFP PHOTO / Daniel SLIM        (Photo credit should read DANIEL SLIM/AFP via Getty Images)
PHOTO: Daniel Slim/Getty Images
The Pentagon, the headquarters of the US Department of Defense, located in Arlington County, across the Potomac River from Washington, DC is seen from the air January 24, 2017. / AFP PHOTO / Daniel SLIM (Photo credit should read DANIEL SLIM/AFP via Getty Images)
Now playing
05:24
US carries out airstrikes on Iran-backed militia groups
(CNN) —  

A former American Airlines mechanic accused of trying to sabotage a commercial airliner entered a plea of not guilty on Friday.

During an arraignment hearing, Ahmed Alani, 60, was led into a Miami federal court wearing shackles on both his arms and legs. Alani’s wife was also present at the hearing.

A grand jury indicted Alani on Thursday for willfully attempting to damage, destroy, disable and wreck a civil aircraft, according to the indictment. If convicted, he could be sentenced to 20 years in prison.

Ahmed Alani in federal court on Friday.
PHOTO: courtesy Daniel Pontet
Ahmed Alani in federal court on Friday.

Alani allegedly tried to damage or disable an aircraft’s air data module (ADM) system, which reports aircraft speed, pitch and other critical data, on July 17. The plane was set to fly from Miami to the Bahamas with 150 people on board, but the takeoff was aborted when pilots noticed an error related to the ADM system.

No terror-related charges have been filed, but a federal judge denied bond for Alani on Wednesday, stating that he might “be … sympathetic to terrorists.”

At the bond hearing, Assistant US Attorney Maria Medetis revealed that Alani had downloaded an ISIS video on his phone that he forwarded to an unknown person. Medetis also said that Alani told a coworker that he had traveled to Iraq to visit his brother, who he said was a member of ISIS.

Following Friday’s hearing, Alani’s attorney, Jonathan Meltz, said the case had “nothing to do with terrorism.”

Meltz said it’s premature to discuss the evidence presented by Medetis during Wednesday’s hearing.

“What you heard in court is hearsay. You heard one side of events. As you know, there are three sides to every story,” he said.

Meltz added that Alani’s family was shocked by the allegations made in court. “They deny everything and are looking to get the truth out,” he said.

The attorney said he has requested a jury trial.

Mechanic said he wanted overtime

According to court documents, Alani told investigators that he was upset over a contract dispute between union workers and the airlines, and the dispute had cost him money. He allegedly explained that he tampered with the aircraft so he could get overtime pay for working on the plane.

American Airlines fired Alani on September 7, spokeswoman Alexis Aran Coello told CNN.

CNN’s Kevin Conlon reported from Miami, with Tina Burnside and Ralph Ellis reporting and writing in Atlanta. CNN’s Mary Kay Mallonee and Denise Royal also contributed to this report.