DFW - The Federal Aviation Administration and National Transportation Safety Board are looking into an American Airlines accident, in which a jet's wing scraped the ground during landing.
The flight from DFW International Airport landed in Charlotte, North Carolina, Sunday night. There was poor visibility at the time.
No one was hurt, but the investigation could look at several factors.
One question that is being asked is if pilot fatigue played a role. The pilots had been on duty 14 hours before the incident.
Another issue is whether pilots switched off autopilot too close to the runway.
Investigators say the pilots believed the autopilot system was not working properly, so they switched to manual controls 300 feet before landing. Typically pilots are supposed to regain altitude and make a second landing attempt if anything goes wrong below 1,000 feet.
Investigators will also look at whether the autopilot system malfunctioned. The plane had a water leak near the system earlier this month, and pilots had previously complained of malfunctioning flight controls.
The FAA is questioning why it took American Airlines 4 hours to report the incident. The airline says it reported the situation to both the NTSB and FAA in a time manner, consistent with past practices.
The pilots are still being paid, but they are not allowed to fly during the investigation.
