Narrative:

The mission was to pick up a citation X from a cessna citation service center and position it for a passenger flight on the next morning. I was also to conduct a 1ST training flight, for an first officer's IOE. This would be his first exposure to the back of the citation X. The aircraft was not available to the crew until about an hour later than it was supposed to be. The stock of supplies onboard, ie, passenger snacks, playing cards, bottled water, lavatory supplies, etc, was nearly depleted. While performing the restock, pointing out where each of the items belong, and preflting the airplane, it was not noticed that the lavatory door was missing. The fact that the door had been removed, was not entered in the aircraft maintenance log. The door is normally open and it is not obvious as a person looks aft in the cabin. We were dispatched with the lavatory door missing and flew 2 ferry legs and a passenger leg without the door installed. On a second passenger leg, the first officer asked how the lavatory door worked? This was when it suddenly occurred to me that I did not notice the door during the preflight. The company was promptly notified and the aircraft was grounded until the missing door could be located, shipped to the aircraft and installed by our own mechanic. The main problem is that the airplane had flown several legs without a proper MEL entry for the missing door. I allowed myself to be distracted from the inspection of the aft cabin. Contributing factors: normal time allowed to receive an aircraft from maintenance, 90 mins. Normal time allowed to preflight with an IOE pilot, 90 mins. Time allocated on this preflight, 90 mins. Time that showed be allocated on combined mission, 120-150 mins. Additional distraction caused by insufficient stock onboard aircraft.

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Original NASA ASRS Text

Title: SEVERAL FLTS ARE FLOWN IN A C750 WITH AN UNNOTICED MISSING LAVATORY DOOR. THE ACFT WAS JUST OUT OF HVY MAINT AND THE FLTS INVOLVED INCLUDED IOE TRAINING.

Narrative: THE MISSION WAS TO PICK UP A CITATION X FROM A CESSNA CITATION SVC CTR AND POS IT FOR A PAX FLT ON THE NEXT MORNING. I WAS ALSO TO CONDUCT A 1ST TRAINING FLT, FOR AN FO'S IOE. THIS WOULD BE HIS FIRST EXPOSURE TO THE BACK OF THE CITATION X. THE ACFT WAS NOT AVAILABLE TO THE CREW UNTIL ABOUT AN HR LATER THAN IT WAS SUPPOSED TO BE. THE STOCK OF SUPPLIES ONBOARD, IE, PAX SNACKS, PLAYING CARDS, BOTTLED WATER, LAVATORY SUPPLIES, ETC, WAS NEARLY DEPLETED. WHILE PERFORMING THE RESTOCK, POINTING OUT WHERE EACH OF THE ITEMS BELONG, AND PREFLTING THE AIRPLANE, IT WAS NOT NOTICED THAT THE LAVATORY DOOR WAS MISSING. THE FACT THAT THE DOOR HAD BEEN REMOVED, WAS NOT ENTERED IN THE ACFT MAINT LOG. THE DOOR IS NORMALLY OPEN AND IT IS NOT OBVIOUS AS A PERSON LOOKS AFT IN THE CABIN. WE WERE DISPATCHED WITH THE LAVATORY DOOR MISSING AND FLEW 2 FERRY LEGS AND A PAX LEG WITHOUT THE DOOR INSTALLED. ON A SECOND PAX LEG, THE FO ASKED HOW THE LAVATORY DOOR WORKED? THIS WAS WHEN IT SUDDENLY OCCURRED TO ME THAT I DID NOT NOTICE THE DOOR DURING THE PREFLT. THE COMPANY WAS PROMPTLY NOTIFIED AND THE ACFT WAS GNDED UNTIL THE MISSING DOOR COULD BE LOCATED, SHIPPED TO THE ACFT AND INSTALLED BY OUR OWN MECH. THE MAIN PROB IS THAT THE AIRPLANE HAD FLOWN SEVERAL LEGS WITHOUT A PROPER MEL ENTRY FOR THE MISSING DOOR. I ALLOWED MYSELF TO BE DISTRACTED FROM THE INSPECTION OF THE AFT CABIN. CONTRIBUTING FACTORS: NORMAL TIME ALLOWED TO RECEIVE AN ACFT FROM MAINT, 90 MINS. NORMAL TIME ALLOWED TO PREFLT WITH AN IOE PLT, 90 MINS. TIME ALLOCATED ON THIS PREFLT, 90 MINS. TIME THAT SHOWED BE ALLOCATED ON COMBINED MISSION, 120-150 MINS. ADDITIONAL DISTR CAUSED BY INSUFFICIENT STOCK ONBOARD ACFT.

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.