ASN Wikibase Occurrence # 190389
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| Date: | Tuesday 27 September 2016 |
| Time: | 18:30 |
| Type: |  Cessna 172P Skyhawk |
| Owner/operator: | Private |
| Registration: | N52126 |
| MSN: | 17274420 |
| Year of manufacture: | 1980 |
| Engine model: | Lycoming O-360-A4M |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Montgomery County, north Laytonsville, MD -
 United States of America
|
| Phase: | Standing |
| Nature: | Private |
| Departure airport: | Laytonsville, MD (W50) |
| Gaithersburg, MD (GAI) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
Earlier on the day of the accident, the pilot/mechanic flew the airplane from its home base airport to another airport to perform scheduled maintenance. Airport security video captured the entire maintenance event and showed the pilot/mechanic removing the engine cowling, draining the engine oil, and inspecting the spark plugs, air filter, and other components. The video did not show him adding engine oil before reinstalling the engine cowling and departing on the accident flight. Shortly after takeoff, the pilot reported to an air traffic controller that the airplane's engine was losing power and that he was returning to the airport. Witnesses reported that the airplane began to fly erratically, rolled into a steep bank, and descended to ground impact about 1 mile from the airport. The witness observations were consistent with the pilot failing to maintain airspeed following the loss of engine power, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Postaccident disassembly of the engine revealed catastrophic failure of internal engine components and signatures consistent with no lubrication and high heat.
Probable Cause: The pilot/mechanic's failure to maintain airspeed following a loss of engine power, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Also causal was the pilot/mechanic's failure to service the engine with oil following maintenance, which resulted in the total loss of engine power.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N52126
Location
Media:
Update - single engine Small plane crash, 1 person did not survive Media Hotline 240.777.2442 pic.twitter.com/EXXR1NjeAg
— Pete Piringer (@mcfrsPIO) September 27, 2016
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 28-Sep-2016 01:00 | Geno | Added |
| 28-Sep-2016 08:51 | Aerossurance | Updated [Embed code] |
| 28-Sep-2016 15:16 | Geno | Updated [Aircraft type, Registration, Cn, Operator, Source, Embed code] |
| 19-Aug-2017 16:50 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Embed code, Narrative] |
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