GA aircraft loss of engine oil due oil plug missing.

Attributes
ACN	123517
Time
Date	198909
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : rbd
State Reference	TX
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Small Aircraft
Flight Phase	ground : preflight
Flight Plan	VFR
Person 1
Affiliation	Other
Function	other personnel other
Qualification	other other : other
ASRS Report	123517
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : declared emergency none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Airport
Air Traffic Incident	other

Narrative:

The incident occurred due to a loss of the engine oil drain plug. Several items on the engine were not airworthy, however it is possible that the drain plug was loosened by someone prior to the flight. The engine was installed in the field, and the conditions were somewhat rushed. The aircraft flew from gainesville, tx, to rbd west/O incident, and I feel the aircraft may have been tampered with.

Original NASA ASRS Text

Title: GA ACFT LOSS OF ENGINE OIL DUE OIL PLUG MISSING.

Narrative: THE INCIDENT OCCURRED DUE TO A LOSS OF THE ENG OIL DRAIN PLUG. SEVERAL ITEMS ON THE ENG WERE NOT AIRWORTHY, HOWEVER IT IS POSSIBLE THAT THE DRAIN PLUG WAS LOOSENED BY SOMEONE PRIOR TO THE FLT. THE ENG WAS INSTALLED IN THE FIELD, AND THE CONDITIONS WERE SOMEWHAT RUSHED. THE ACFT FLEW FROM GAINESVILLE, TX, TO RBD W/O INCIDENT, AND I FEEL THE ACFT MAY HAVE BEEN TAMPERED WITH.

Data retrieved from NASA's ASRS site as of August 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.