Flight Crew Air Transport Pilot (ATP)
Training / Qualification; Troubleshooting
Aircraft Equipment Problem Critical
Flight Crew Inflight Shutdown; Flight Crew Returned To Departure Airport; General Declared Emergency
Aircraft
We were performing a post C-Check maintenance test flight on an MD-10-30 aircraft . During the test flight; during normal engine shutdown/restart procedures; the number one engine failed to relight. After several unsuccessful restart attempts; we performed the appropriate emergency checklists and at 70 miles north of our destination declared an emergency. We landed uneventfully.
During several attempts to relight and altiude changes for thicker air; all attempts to relight failed.
A DC-10-30's number one engine failed to relight after it was shut down on post C-Check maintenance test flight; so an emergency was declared followed by a normal landing.