Judy Tygard, a senior producer at CBS News’ “48 Hours,” will take the reins of the program in the wake of the series’ current chief, Susan Zirinsky, being elevated to president of the news division, according to two people familiar with the situation.

Zirinsky told staffers Monday of the decision. “I am leaving the ship in the most qualified hands,” Zirinsky said, according to a person who was present.  “I need not explain her editorial strength and commitment to this broadcast.”

In Tygard, CBS News has a veteran who first started working for the network since 1985, when she first joined the outlet as a news writer for Bob Schieffer and Morton Dean on the weekend editions of “CBS Evening News.”   She has been with “48 Hours” for two different tenures. She was a producer and senior producer for the show between 1989 and 1997, and then left for five years working as a producer for “Primetime” and “20/20” at ABC News. She returned to “48 Hours” as a senior producer in 2005.

Tygard had been a broadcast producer for “The Ten O’Clock News” at WNEW-TV, New York City between 1984 and 1986, and an assignment editor, copy editor, writer and desk assistant for the same broadcast between 1980 and 1984.

“48 Hours” is one of TV news’ longest running programs, having been on the air since 1988, and one of a only a small handful of original prime-time series airing on Saturday nights on TV’s broadcast networks.

Other CBS News shows are likely to get new top producers as well. At “CBS This Morning,” executive producer Ryan Kadro is about to depart. And at “60 Minutes, which has been without an official chief since the ouster last year of Jeff Fager, executive editor Bill Owens is seen as a top candidate for the position. He has been running the program in the interim.