N506AU is not currently registered. It was last assigned to a Boeing 737-3B7 built in 1987. The FAA cancelled the registration on September 29, 2010. The last status on file was "triennial registration form was mailed and has not been returned by the post office".
Boeing 737-3B7 cancelled September 29, 2010
- Serial number
- 23381
- Type
- Fixed-wing, multi-engine · Turbofan
- Year built
- 1987
- Last status
- Triennial registration form was mailed and has not been returned by the Post Office
- Certificate issued
- June 27, 2006
- Last FAA action
- June 16, 2009
- Last owner
- Aircraft Statutory Trust N506Au (Corporation)
Boston, MA - Airworthiness
- Standard · Transport
NTSB accident and incident record under N506AU
Aircraft on the NTSB record: Boeing 737-3B7 · serial 23381
The failure of the left hand main landing gear was caused by heat induced cracks resulting from abusive grinding/polishing of the chrome plate that was applied during the last overhaul.
A tail number passes between aircraft over the years; match the serial number on the NTSB record against the airframe above. Source: NTSB aviation accident database, records through September 30, 2026.
Source: FAA Civil Aviation Registry, Releasable Aircraft Database, October 2, 2026. See this number on the FAA site