Michaelian Lancair IV-TP accident near Rio Linda, CA
On August 3, 2017, a Michaelian Lancair IV-TP (airplane) was involved in an accident near Rio Linda, CA. 1 person died. Damage to the aircraft: substantial.
- Date
- August 3, 2017
- Place
- Rio Linda, CA
- Aircraft
- Michaelian Lancair IV-TP · Airplane
- Injuries
- 1 fatal, 0 serious, 0 minor
- Damage
- Substantial
- Position
- 38.704°N, 121.402°W
- NTSB ID
- 20170803X92426
Official records · WPR17FA179
- Public docket: reports, statements and exhibits from the investigation
NTSB summary
HISTORY OF FLIGHTOn August 3, 2017, at 1503 Pacific daylight time, an experimental, amateur-built Lancair IV-TP, N420M, was substantially damaged when it was involved in an accident near Rio Linda, California. The commercial pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. An onboard GPS and avionics unit captured data from the accident flight; the airplane departed Auburn Municipal Airport (AUN), Auburn, California, about 1455. The pilot established the airplane on a heading of about 195° toward the destination of San Carlos, California and began to climb. The pilot contacted air traffic control and requested visual flight rules flight following to the destination, and when the controller advised the pilot that the airplane had been identified on radar, the pilot did not respond. The controller then saw the airplane turn and descend toward McClellan Airfield (MCC), Sacramento, California; no further communications were received from the accident pilot. (See Figure 1). Figure 1: Flight Track Showing Diversion Data showed that, at 1459:17, the fuel pressure began to rise from about 40 pounds per square inch (psi) to 43 psi. A few seconds later, after reaching 6,492 ft mean sea level (msl), the airplane pitched down and banked to the left, reaching 25° nose down and 36° left wing down. At 1459:24, torque and N1 (gas generator speed) were at 64% and 95%, respectively, and 15 seconds later, began to decrease consistent with the engine producing idle power. During that time, the oil pressure dropped from abou
Probable cause
A loss of engine power for reasons that could not be determined based on available evidence.
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Source: NTSB aviation accident database (US government, public domain). Findings may be preliminary or later revised by the NTSB. Not a complete global record.
