Logbook squawk on engine producing a rumbling sound. Scheduled maintenance performed. Nothing found.

Attributes
ACN	260358
Time
Date	199401
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : atl
State Reference	GA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
ASRS Report	260358
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Aircraft came into atl for maintenance. Aircraft was reported to have a rumbling sound. Aircraft is an MD80. The #1 engine was ran and a vibration survey was done and the vibration check was good. The accessories were inspected for security and no defects were found. The main oil filter was pulled along with the gear box chip detector and no metal was noted. Engine was spun for leak check and no leaks were noted.

Original NASA ASRS Text

Title: LOGBOOK SQUAWK ON ENG PRODUCING A RUMBLING SOUND. SCHEDULED MAINT PERFORMED. NOTHING FOUND.

Narrative: ACFT CAME INTO ATL FOR MAINT. ACFT WAS RPTED TO HAVE A RUMBLING SOUND. ACFT IS AN MD80. THE #1 ENG WAS RAN AND A VIBRATION SURVEY WAS DONE AND THE VIBRATION CHK WAS GOOD. THE ACCESSORIES WERE INSPECTED FOR SECURITY AND NO DEFECTS WERE FOUND. THE MAIN OIL FILTER WAS PULLED ALONG WITH THE GEAR BOX CHIP DETECTOR AND NO METAL WAS NOTED. ENG WAS SPUN FOR LEAK CHK AND NO LEAKS WERE NOTED.

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.