Narrative:

I was briefed to go to the airport and assist maintenance with taxiing an aircraft for an engine run after a new engine had been installed on the #1 side. Upon arrival, the lead mechanic said he had put on 8000 pounds of fuel and only needed help with loading the new serial numbers in the mfd and taxiing to the run-up area. After a 2 hour delay, my first officer and I returned to the aircraft which was now out of the hangar, parked and chocked. It appeared ready for start and taxi. 1 mechanic stood in front of the aircraft and cleared me to start. After 1 aborted start, #1 started successfully and appeared normal. At this time the mechanic got in the aircraft and closed the door. We then started #2 engine. No one was outside the aircraft. When #2 reached 30% N2, 2 loud bangs were heard. I immediately shut down both engines. I asked the mechanic if he had heard the noise. His reply was, 'yes, sounds like a bleed valve, start it again.' however, something said 'stop and investigate.' we had ingested an engine inlet cover in #2 engine. The engine was heavily damaged. It was my responsibility as captain to ensure a preflight inspection and walkaround was completed. I had not. I had assumed maintenance had completed these functions. Even though a captain may delegate authority/authorized, he should never simply assume others have accomplished his delegated responsibilities.

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Original NASA ASRS Text

Title: A G200 PLT FAILS TO DO A WALKAROUND PRIOR TO STARTING THE ENGS RESULTING IN AN ENG COVER BEING INGESTED INTO THE #2 ENG.

Narrative: I WAS BRIEFED TO GO TO THE ARPT AND ASSIST MAINT WITH TAXIING AN ACFT FOR AN ENG RUN AFTER A NEW ENG HAD BEEN INSTALLED ON THE #1 SIDE. UPON ARR, THE LEAD MECH SAID HE HAD PUT ON 8000 LBS OF FUEL AND ONLY NEEDED HELP WITH LOADING THE NEW SERIAL NUMBERS IN THE MFD AND TAXIING TO THE RUN-UP AREA. AFTER A 2 HR DELAY, MY FO AND I RETURNED TO THE ACFT WHICH WAS NOW OUT OF THE HANGAR, PARKED AND CHOCKED. IT APPEARED READY FOR START AND TAXI. 1 MECH STOOD IN FRONT OF THE ACFT AND CLRED ME TO START. AFTER 1 ABORTED START, #1 STARTED SUCCESSFULLY AND APPEARED NORMAL. AT THIS TIME THE MECH GOT IN THE ACFT AND CLOSED THE DOOR. WE THEN STARTED #2 ENG. NO ONE WAS OUTSIDE THE ACFT. WHEN #2 REACHED 30% N2, 2 LOUD BANGS WERE HEARD. I IMMEDIATELY SHUT DOWN BOTH ENGS. I ASKED THE MECH IF HE HAD HEARD THE NOISE. HIS REPLY WAS, 'YES, SOUNDS LIKE A BLEED VALVE, START IT AGAIN.' HOWEVER, SOMETHING SAID 'STOP AND INVESTIGATE.' WE HAD INGESTED AN ENG INLET COVER IN #2 ENG. THE ENG WAS HEAVILY DAMAGED. IT WAS MY RESPONSIBILITY AS CAPT TO ENSURE A PREFLT INSPECTION AND WALKAROUND WAS COMPLETED. I HAD NOT. I HAD ASSUMED MAINT HAD COMPLETED THESE FUNCTIONS. EVEN THOUGH A CAPT MAY DELEGATE AUTH, HE SHOULD NEVER SIMPLY ASSUME OTHERS HAVE ACCOMPLISHED HIS DELEGATED RESPONSIBILITIES.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.