Narrative:

While en route to ny city heliport from mmu, and in ewr's class B airspace #1 engine oil temperature began to rise. Started a turn to return to mmu, however, before turn was completed, it was obvious that the oil temperature was climbing too quickly to continue to mmu. The turn was continued to ewr. Emergency checklist was completed and the engine shut down when oil temperature exceeded limits. I had completed a thorough preflight, as had a company mechanic. A while diaper used by cleaning personnel was found in the oil cooler blower. The aircraft is white and the diaper could be easily missed. Cleaning crews are not aviation personnel and did not understand importance of a lost rag or keeping track of rags.

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Original NASA ASRS Text

Title: DIVERSION TO ALTERNATE AFTER ROTARY WINGER TFC EXPERIENCES A MAJOR ACFT EQUIP PROB. FOREIGN OBJECT INGESTION.

Narrative: WHILE ENRTE TO NY CITY HELIPORT FROM MMU, AND IN EWR'S CLASS B AIRSPACE #1 ENG OIL TEMP BEGAN TO RISE. STARTED A TURN TO RETURN TO MMU, HOWEVER, BEFORE TURN WAS COMPLETED, IT WAS OBVIOUS THAT THE OIL TEMP WAS CLBING TOO QUICKLY TO CONTINUE TO MMU. THE TURN WAS CONTINUED TO EWR. EMER CHKLIST WAS COMPLETED AND THE ENG SHUT DOWN WHEN OIL TEMP EXCEEDED LIMITS. I HAD COMPLETED A THOROUGH PREFLT, AS HAD A COMPANY MECHANIC. A WHILE DIAPER USED BY CLEANING PERSONNEL WAS FOUND IN THE OIL COOLER BLOWER. THE ACFT IS WHITE AND THE DIAPER COULD BE EASILY MISSED. CLEANING CREWS ARE NOT AVIATION PERSONNEL AND DID NOT UNDERSTAND IMPORTANCE OF A LOST RAG OR KEEPING TRACK OF RAGS.

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.