WASHINGTON (Reuters) - The head of the Federal Aviation Administration will testify on Sept. 25 before the Senate Permanent Subcommittee on Investigations on the planemaker's oversight of Boeing ( BA ), a committee aide told Reuters.

The committee, led by Senator Richard Blumenthal, in June sharply questioned then Boeing ( BA ) CEO Dave Calhoun on the planemaker's safety record. The hearing later this month titled "FAA Oversight of Boeing's ( BA ) Broken Safety Culture" comes as Whitaker has ramped up scrutiny of the planemaker since a Jan. 5 mid-air emergency in a new Alaska Airlines Boeing 737 MAX and acknowledged it should have done more before the incident.