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ASN Wikibase Occurrence # 37313
Last updated: 21 August 2019
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Date:28-FEB-1985
Time:11:02
Type:Silhouette image of generic M20P model; specific model in this crash may look slightly different
Mooney M20E
Owner/operator:private
Registration: N9325M
C/n / msn: 1257
Fatalities:Fatalities: 2 / Occupants: 2
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Oceanside, CA -   United States of America
Phase: En route
Nature:Private
Departure airport:Oceanside, CA (L32)
Destination airport:Fortuna, CA (FOT)
Investigating agency: NTSB
Narrative:
GND WITNESSES REPORTED THE ACFT ENGINE BEGAN TO MISFIRE SHORTLY AFTER DEPARTING RY 24 AT OCEANSIDE MUNI airport OCEANSIDE, CA. WHEN THE ACFT REACHED THE DEPARTURE END OF THE RY AT AB OUT 100 FT AGL, THE PLT BEGAN A LEFT TURN. PRIOR TO COMPLETING THE TURN, THE ACFT STALLED A CRASHED INTO A BLDG LOCATED ASOUTH & ADFACENT TO RY 24. BOTH OCCUPANTS ABOARD THE ACFT SUSTAINED FATAL INJURIES. NO PERSONS ON THE GROUND WERE INJURED. THE BLDS WAS SUBSTANTIALLY DAMAGED AND ITS CONTENTS WERE DISTROYED. DISASSEMBLY EXAM OF THE ENGINE REVEALED THAT THE NO. 1 CYL SPARK PLUGS WERE NOT FIREING AND THAT THE NO. 3 CYL PISTON COMPRESSION RING WAS BROKEN & THE UPPER SPARK PLUG WAS OIL SOAKED. THE ABSCENCE OF RING PAR- TICLES IN THE OITL FILTER INDICATED THE RING BROKE DURING THE ACCIDENT flight. SEVERAL CRANKSHAFT & CON ROD BEARINGS SHOWED HIGH TEMP DISTRESS. MOST OF THE OIL PASSAGE HOLES WERE PARTIALLY BLOCKED BY THE BEARINGS. THE CRANKSHAFT WAS PUSHED REARWARD. THE MAINT LOGS REVEAL TWO PRIOR PROP GND CONTACT. THE ENG HAD NOT BEEN OVHLD & HAD ACCUM MORE THAN 1868 HRS. CAUSE:

Sources:

NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001214X35720


Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added
21-Dec-2016 19:23 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]

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