Navion pilot has oil leak and is forced to make an off field landing.

Attributes
ACN	581359
Time
Date	200305
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : grk.tracon
State Reference	TX
Altitude	agl single value : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : grk.tracon
Operator	general aviation : personal
Make Model Name	Navion Aircraft Corp Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	VFR
Person 1
Affiliation	other
Function	flight crew : single pilot oversight : pic
Qualification	pilot : private
Experience	flight time last 90 days : 8.7 flight time total : 360 flight time type : 20
ASRS Report	581359
Person 2
Affiliation	government : military
Function	controller : departure controller : approach
Events
Anomaly	aircraft equipment problem : critical ground encounters other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : landed as precaution flight crew : landed in emergency condition
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Upon the showing of a small spattering of oil on the windshield I informed gray approach that I had a problem and that I was returning to burnet. Within moments the windshield was completely covered by a thick film of oil and completely obscured. I informed gray that I was making an off field landing. I immediately pulled the propeller lever out to full pitch to shut off the oil to the propeller governor as called for in the operating handbook. Next I surveyed the area and selected a place to land. I made a left circling approach to keep the site in view as long as possible. Using side vision I made a soft landing and applied all the braking action available. I did not feel the right flap impact a fence post. No one was hurt. Damage to the airplane was minimal. In the 2 mins or less that this took place the engine lost 3 of 7 quarts of oil. The cause of the problem turned out to be the connection of the oil system to the propeller governor. The 2 bolts holding the oil line fitting to the back of the governor had backed off slightly and allowed the seal to fail.

Original NASA ASRS Text

Title: NAVION PLT HAS OIL LEAK AND IS FORCED TO MAKE AN OFF FIELD LNDG.

Narrative: UPON THE SHOWING OF A SMALL SPATTERING OF OIL ON THE WINDSHIELD I INFORMED GRAY APCH THAT I HAD A PROB AND THAT I WAS RETURNING TO BURNET. WITHIN MOMENTS THE WINDSHIELD WAS COMPLETELY COVERED BY A THICK FILM OF OIL AND COMPLETELY OBSCURED. I INFORMED GRAY THAT I WAS MAKING AN OFF FIELD LNDG. I IMMEDIATELY PULLED THE PROP LEVER OUT TO FULL PITCH TO SHUT OFF THE OIL TO THE PROP GOVERNOR AS CALLED FOR IN THE OPERATING HANDBOOK. NEXT I SURVEYED THE AREA AND SELECTED A PLACE TO LAND. I MADE A L CIRCLING APCH TO KEEP THE SITE IN VIEW AS LONG AS POSSIBLE. USING SIDE VISION I MADE A SOFT LNDG AND APPLIED ALL THE BRAKING ACTION AVAILABLE. I DID NOT FEEL THE R FLAP IMPACT A FENCE POST. NO ONE WAS HURT. DAMAGE TO THE AIRPLANE WAS MINIMAL. IN THE 2 MINS OR LESS THAT THIS TOOK PLACE THE ENG LOST 3 OF 7 QUARTS OF OIL. THE CAUSE OF THE PROB TURNED OUT TO BE THE CONNECTION OF THE OIL SYS TO THE PROP GOVERNOR. THE 2 BOLTS HOLDING THE OIL LINE FITTING TO THE BACK OF THE GOVERNOR HAD BACKED OFF SLIGHTLY AND ALLOWED THE SEAL TO FAIL.

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.