Jeff Guzzetti

Impact: Jeff Guzzetti, a former FAA and NTSB crash investigator, highlighted the discrepancy between McDonnell Douglas MD-11's 1980 service bulletin and Boeing's 2011 assessment of the faulty part, raising questions about the adequacy of Boeing's warning and UPS's response.

Impact: Jeff Guzzetti, an aviation safety expert, stated that the actions of Boeing, United Parcel Service, United States — Federal Aviation Administration, and ST Engineering — ST Engineering all contributed to the crash, emphasizing shared responsibility.

Impact: Jeff Guzzetti, an aviation safety expert, commented on the United Parcel Service crash report, suggesting that the United States — Federal Aviation Administration will likely re-evaluate the adequacy of maintenance time frames.

Impact: Jeff Guzzetti, an aviation safety consultant, provided expert commentary on the crash, suggesting the lack of an experienced copilot may have been a key factor.

Impact: Jeff Guzzetti, an aviation safety expert and former federal crash investigator, provided commentary on the crash and the flight attendant's survival, attributing it to the robust design of crew seats.