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ASN Wikibase Occurrence # 43194
Last updated: 3 December 2021
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Date:26-JUL-1990
Time:00:30
Type:Silhouette image of generic AT3P model; specific model in this crash may look slightly different
Air Tractor AT-401
Owner/operator:Grouleff Aviation
Registration: N7315S
MSN: 401-0673
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Category:Accident
Location:San Joaquin, CA -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Agricultural
Departure airport:
Destination airport:, CA
Investigating agency: NTSB
Narrative:
THE PILOT EXPERIENCED AN ENGINE FAILURE DURING AERIAL APPLICATION, LANDED IN A FIELD AND THE AIRCRAFT FLIPPED OVER. THE AIRCRAFT REMAINED INTACT WITH NO FIRE. THE PILOT EXPIRED FROM 'POSITIONAL ASPHYXIA.' EXAMINATION OF THE ENGINE REVEALED THE NO. 4 CYLINDER WAS CRACKED AROUND THE COOLING FINS AND CONTINUED THROUGH THE CENTER OF THE SPARK PLUG BOSS. THE ENGINE HAD 7251 TOTAL HOURS AND 339 HOURS SINCE OVERHAUL. CAUSE: THE FAILURE OF THE NO. 4 CYLINDER HEAD.

Sources:

NTSB: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001212X23717


Revision history:

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

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