Seven current and former MBTA employees were hit with a superseding federal indictment alleging they falsified Red Line track inspection reports and submitted fraudulent overtime claims, exposing a months‑long scheme that prosecutors say substituted paperwork for actual safety checks and paid time.
Federal prosecutors say six former Massachusetts Bay Transportation Authority employees and one current employee face charges connected to multiple conspiracies, including falsifying Red Line track inspection reports and committing overtime fraud. The indictment centers on activity from Jan. 1, 2024, through Oct. 16, 2024, and ties supervisors and inspectors to coordinated efforts to hide missed work. Authorities contend the scheme undermined the integrity of inspection reporting on a major transit line.
The superseding indictment names the following individuals and specifies the counts against them:
- Brian Pfaffinger, 48, of Marshfield, was indicted for conspiracy to falsify records; conspiracy to commit wire fraud; falsification of records, aiding and abetting; and false statements, aiding and abetting;
- Ronald Gamble, 63, of Dorchester, was indicted for conspiracy to falsify records; conspiracy to commit wire fraud; wire fraud, aiding and abetting; falsification of records, aiding and abetting; and false statements, aiding and abetting;
- Magda Trinh, 45, of Avon, was indicted for conspiracy to falsify records; conspiracy to commit wire fraud; wire fraud, aiding and abetting;
- Jensen Vatel, 43, of Brockton, was indicted for conspiracy to falsify records; conspiracy to commit wire fraud; wire fraud, aiding and abetting; falsification of records, aiding and abetting; and false statements, aiding and abetting;
- Nathalie Mendes, 54, of New Bedford, was indicted for conspiracy to falsify records; conspiracy to commit wire fraud; wire fraud, aiding and abetting; falsification of records, aiding and abetting; false statements, aiding and abetting; and wire fraud;
- Danny Barbosa, 37, of Dorchester, was indicted for conspiracy to commit wire fraud and wire fraud, aiding and abetting; and
- Matthew Leonard, 37, of Easton, was indicted for conspiracy to commit wire fraud and wire fraud, aiding and abetting.
Two separate arrest events are noted in the case timeline. Pfaffinger, Gamble, Vatel and Mendes were previously indicted on May 22, 2025, and were arrested on May 29, 2025. Trinh, Barbosa and Leonard were arrested earlier in the week and appeared in federal court in Boston.
According to charging documents, all seven defendants worked in Red Line Maintenance of Way roles, with Pfaffinger serving as a supervisor and Gamble, Trinh, Vatel and Mendes acting as track inspectors. Inspectors were required to complete track inspections using MBTA‑issued phones running an application called MaxTrax, which recorded inspection details and produced official reports. Prosecutors say those reports were the primary record used to confirm inspections had taken place.
Prosecutors allege that from Jan. 1, 2024, to Oct. 16, 2024, Pfaffinger, Gamble, Trinh, Vatel and Mendes either falsified track inspection reports or helped submit falsified reports on behalf of others. To dodge questions from senior MBTA officials, Gamble and Trinh allegedly directed other inspectors to artificially extend the reported duration of inspections. It is further alleged that some inspectors, including Vatel and Mendes, entered train numbers they found online instead of riding trains to perform required inspections.
The indictment describes periods when reported inspections coincided with the inspectors actually being inside Cabot Yard, a facility that contained a break room and a large garage. Prosecutors assert the garage was used to work on private vehicles during scheduled work hours, and that Gamble, Vatel, Barbosa and Leonard took part in that activity. They also allege Pfaffinger knew subordinates were working on private vehicles and even had them perform work on his personal vehicle.
One alleged episode in July 2024 is highlighted in the charging documents: Pfaffinger reportedly flagged multiple tracks as having serious defects, yet 10 days later allegedly asked subordinates to use work time to service his private vehicle. The indictment further claims Gamble created overtime sheets submitted directly to payroll that falsely claimed overtime work by himself and others. Those overtime submissions are central to the wire fraud allegations.
Prosecutors describe how the overtime fraud operated in practice: employees allegedly either did not show up for overtime shifts, arrived hours late, or scanned in at the start of a shift and then disappeared for long stretches, sometimes sleeping in vehicles, before returning. Gamble is accused of submitting overtime sheets for Leonard, Barbosa and others despite knowing they had not completed the claimed hours, in part to compensate them for working on private vehicles during MBTA time. Trinh is alleged to have aided and abetted a falsified time sheet claiming Vatel worked an overtime shift he did not, and Pfaffinger allegedly approved time sheets as the supervisor.
The potential penalties listed in the indictment vary by charge: conspiracy to falsify records carries up to five years in prison, up to three years of supervised release and fines up to $250,000. The falsification, conspiracy to commit wire fraud, and wire fraud counts each carry up to 20 years in prison, up to three years of supervised release and fines up to $250,000. The false statements charge carries up to five years, and aiding and abetting exposure is equivalent to punishment as a principal; sentencing is determined by a federal district court judge under the U.S. Sentencing Guidelines.
The announcement of the superseding indictment was made by United States Attorney Leah B. Foley; Elise Chawaga, Principal Inspector General of the United States Department of Transportation, Office of Inspector General; and Jonathan Mellone, Special Agent in Charge of the Northeast Region of the Department of Labor, Office of Inspector General. Valuable assistance was provided by the United States Postal Inspection Service and the Federal Bureau of Investigation, and Assistant U.S. Attorney Lucy Sun of the Public Corruption & Special Prosecutions Unit is prosecuting the case.
