What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Aircraft made a soft field landing in a hayfield in Antioch, CA due to loss of oil pressure at 031430PDT. Aircraft flipped over and came to rest inverted. Single occupant the pilot, privacy data omitted was not injured. However substantial aircraft damage reported to NTSB. Met with the pilot privacy data omitted and reviewed aircraft records at attitude aviation livermore, CA on 06/06/2006. Last annual inspection accomplished on 03/29/2006. Engine record indicated Lycoming aeio-540-D4A5 was overhauled by air west engine repair station #TV3R on 01/12/2001. On 06/06/2006 tach read 2256.3 placards beside tach reads "next oil change due 2256.7". Checked oil level, about (9) quarts of oil still in engine and no signs of leakage observed. Had owner/pilot privacy data omitted remove the oil screen in accordance with SB-480E. No material found in screen. Removed right magneto to inspect in accordance with Lycoming SB-555A, plug not applicable or installed. Removed the adjustable oil pressure valve, no material found. Seat area was cleaned and inspected no damage noted or unusual wear patterns. Removed all bottom spark plugs cylinder #1 and #3 had oil in the cylinders. Rotated broken propeller no mechanical damage noted. Unable to determine oil pump impetters in accordance with SB-524 until engine is torn down. Unable to determine oil suction screen area for casting voits until engine is open up in accordance SB-558.
As the FAA filed it
(-23) AIRCRAFT MADE A SOFT FIELD LANDING IN A HAYFIELD IN ANTIOCH, CA DUE TO LOSS OF OIL PRESSURE AT 031430PDT. AIRCRAFT FLIPPED OVER AND CAME TO REST INVERTED. SINGLE OCCUPANT THE PILOT, ^PRIVACY DATA OMIT^ WAS NOT INJURED. HOWEVER SUBSTANTIAL AIRCRAFT DAMAGE REPORTED TO NTSB. MET WITH THE PILOT ^PRIVACY DATA OMIT^ AND REVIEWED AIRCRAFT RECORDS AT ATTITUDE AVIATION LIVERMORE, CA ON 06/06/2006. LAST ANNUAL INSPECTION ACCOMPLISHED ON 03/29/2006. ENGINE RECORD INDICATED LYCOMING AEIO-540-D4A5 WAS OVERHAULED BY AIR WEST ENGINE REPAIR STATION #TV3R ON 01/12/2001. ON 06/06/2006 TACH READ 2256.3 PLACARDS BESIDE TACH READS "NEXT OIL CHANGE DUE 2256.7". CHECKED OIL LEVEL, ABOUT (9) QUARTS OF OIL STILL IN ENGINE AND NO SIGNS OF LEAKAGE OBSERVED. HAD OWNER/PILOT ^PRIVACY DA^ REMOVE THE OIL SCREEN IN ACCORDANCE WITH SB-480E. NO MATERIAL FOUND IN SCREEN. REMOVED RIGHT MAGNETO TO INSPECT IN ACCORDANCE WITH LYCOMING SB-555A, PLUG NOT APPLICABLE OR INSTALLED. REMOVED THE ADJUSTABLE OIL PRESSURE VALVE, NO MATERIAL FOUND. SEAT AREA WAS CLEANED AND INSPECTED NO DAMAGE NOTED OR UNUSUAL WEAR PATTERNS. REMOVED ALL BOTTOM SPARK PLUGS CYLINDER #1 AND #3 HAD OIL IN THE CYLINDERS. ROTATED BROKEN PROPELLER NO MECHANICAL DAMAGE NOTED. UNABLE TO DETERMINE OIL PUMP IMPETTERS IN ACCORDANCE WITH SB-524 UNTIL ENGINE IS TORN DOWN. UNABLE TO DETERMINE OIL SUCTION SCREEN AREA FOR CASTING VOITS UNTIL ENGINE IS OPEN UP IN ACCORDANCE SB-558.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.