5 stories to follow: April 7

A SEPTA bus travels a route through West Philadelphia along City Avenue near St. Joseph's University. (YONG KIM / Staff Photographer)

Here's your daily look at five stories we're following:

1. SEPTA negotiations: The contract between SEPTA and Transport Workers Union Local 234 expired at midnight, but the transit agency expects service to run as normal today. Union leaders said there weren't immediate plans to strike, and labor talks are continuing.

2. OT pay: A Philly.com analysis has found that many Philadelphia municipal employees are logging huge amounts of overtime -- which results in higher paychecks now and will ultimately lead to big pension payouts in retirement. The city has paid out $890 million in overtime in the past five years.

3. Possible jet signals: Authorities say signals consistent with those from an aircraft black box are a "most promising lead" in the search for the missing Malaysia Airlines plane.

4. Camden Renaissance schools: Two additional privately run public schools will open this fall in Camden. Mastery Charter Schools and Uncommon Schools are expected to submit applications for the hybrid schools to the state Department of Education today.

5. Pa. gov. race ads: U.S. Rep. Allyson Schwartz is slated to launch her first television ad in Pennsylvania's Democratic primary for governor today.