Three times Marilyn Jean Hartman attempted to slip past airport security checkpoints to stowaway on airplanes . And three times the 62-year-old Hartman got caught . This week , authorities say she made it through a screening checkpoint at Mineta San Jose International Airport without a ticket and boarded a Southwest Airlines flight bound for Los Angeles International Airport . `` If you Google her name , you will see she had been arrested before but not at our airport , '' San Jose airport spokeswoman Rosemary Barnes said . Hartman was arrested Monday at the Los Angeles airport , according to a statement released by airport police . She pleaded no contest Wednesday to a misdemeanor count of stowing away , CNN affiliate KTLA reported . She was sentenced to two years probation and three days in jail . She was given credit for time served and released . Outside the courthouse , Hartman refused to detail to reporters how she got through security . `` I do n't think it 's wise to say how I got through . I do n't want to help the enemy , '' she said . `` ... I want to go with a paid ticket . ... I want to do everything legal , '' Hartman said . `` It was clearly wrong on my part . ... It was stupid and it is something I do n't want to repeat . '' Hartman was arrested Monday night after the flight crew determined she did not have a ticket , police said . The flight crew conducted a head count and discovered Hartman `` was not a ticketed passenger on Southwest Airlines , '' the police said . It was unclear how the crew determined Hartman stowed away . `` Further investigation revealed there was no confirmed reservation in the system and Hartman had no documents to show proof that she had purchased a ticket , '' the statement said . It 's the second time San Jose International Airport has made headlines in recent months over a reported stowaway . In April , 15-year-old Yahya Abdi crawled into the wheel well of a Hawaii-bound 767 and lost consciousness when the plane took off . He was caught after climbing out of the plane and onto the tarmac at Kahului Airport on the island of Maui . The incident raised questions about how the teen was able to breach security at the airport . Hartman 's actions raised the question again this week . Hartman apparently blended in with a family at a checkpoint where a Transportation Security Administration agent was checking tickets and identification , CNN affiliate KTVU reported , citing an unnamed source familiar with the case . She is then accused of doing the same thing -- blending in with a family -- to board the flight , the source said . San Jose airport officials and the TSA said at no time were passengers in jeopardy . Hartman `` was screened by TSA for any prohibited items . It 's really important to point that out , '' Barnes said . `` And public safety was not compromised in any way . '' Even so , the TSA is making `` minor modifications '' to the layout of its passenger screening area to prevent another incident , said Ross Feinstein , the TSA press secretary . Hartman has been described by authorities as a serial stowaway , who has repeatedly tried to board flights to Hawaii at San Francisco International Airport without a ticket . Earlier this year , she was sentenced to probation and ordered to stay away from the San Francisco airport . 5 stowaway attempts that did n't end tragically .
Marily Jean Hartman , 62 , pleaded no contest to stowing away on Southwest flight . `` I do n't think it 's wise to say how I got through '' the security checkpoints , she says . Hartman was arrested Monday after stowing away on a flight from San Jose to Los Angeles . She has been arrested at least three times for trying the same thing .