BOSTON (AP) — Federal investigators say the engine of a small plane that crashed into a Massachusetts home last month had a breach in the crankcase, two puncture holes near a cylinder and a fractured oil sump.

The preliminary report released Tuesday by the National Transportation Safety Board also said a cable and a turnbuckle exhibited overload fractures. The report did not indicate whether the problems occurred pre- or post-crash and did not draw any conclusions on whether they contributed to the deadly accident in Plainville on June 28.

READ MORE: Winthrop Woman Found Dead On Camelback Mountain In Arizona
The plane and home in flames following the crash. (Photo credit: Mary O’Rourke)

The plane and home in flames following the crash. (Photo credit: Mary O’Rourke)

All three people aboard the plane — Dr. Joseph Richard Kalister of Knoxville, Tennessee; his wife, Betty; and their teenage daughter, Nicole — died.

READ MORE: Laundry Detergent Spills On I-495 After Rollover Crash In Wrentham, Causes Significant Delays

A family of four escaped unharmed from the home.

The pilot reported losing engine power minutes before the crash.

MORE NEWS: 'Definitely Concerned': Travelers At Logan Airport Cautious About Catching COVID Delta Variant On Summer Trips

Copyright 2015 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.