An Air France flight attendant was arrested after passengers lost jewelry and cash from hand baggage while they slept, French newspaper Le Figaro reported Tuesday.
Prosecutors opened a case file after the cabin crew member was arrested at Paris' Charles de Gaulle airport and has confessed to theft, a judicial source said.
According to the report, the 47-year-old stewardess, referred to as Lucie R., went through business passengers' bags on 142 long haul flights out of Paris.
Police were alerted in January after five passengers on a flight to Tokyo lost the equivalent of around $10,000 in foreign currency.
The complaints sparked a six-month long investigation as detectives cross-checked cabin crew rosters with further theft reports.
Police say she confessed to 26 separate thefts, but believe she committed dozens more. They also found she had a bank safe-deposit box full of jewelry as well as credit cards, cash, blank checks and travelers' checks at her home.
If convicted, the woman faces 10 years in prison.