ASN Wikibase Occurrence # 168048
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| Date: | Friday 18 July 2014 |
| Time: | 08:45 |
| Type: |  Grumman G-164B Ag-Cat |
| Owner/operator: | Precision Aerial Ag Llc |
| Registration: | N6743Q |
| MSN: | 1715 |
| Total airframe hrs: | 5863 hours |
| Engine model: | Pratt & Whitney R-1340 AN-1 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | near Fairview, SE of Sabetha, Kansas -
 United States of America
|
| Phase: | En route |
| Nature: | Ferry/positioning |
| Departure airport: | Atchison, KS (K59) |
| Sabetha, KS (K83) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that, while the airplane was cruising at 600 feet above ground level, the engine backfired and experienced a partial loss of power. He subsequently made an emergency landing to a road. During the landing, the engine experienced a total loss of power, and the airplane stalled, which resulted in a bounced hard landing. The airplane then slid sideways into a telephone pole, which resulted in damage to the wings and fuselage.
Due to impact damage, an engine test run could not be conducted. The induction air filter was found distorted outward and opposite from the direction of normal airflow, which is indicative of an engine backfire. A postaccident engine examination revealed that the No. 2 cylinder oil control ring was broken. However, it could not be determined when the oil control ring was broken or if the engine backfiring allowed the ring to break. No other anomalies with the engine were noted. The reason for the engine backfire and subsequent loss of power could not be determined.
Probable Cause: The backfire of the engine and its loss of power for reasons that could not be determined based on the available evidence.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: 2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=6743Q
History of this aircraft
Other occurrences involving this aircraft
| 11 May 1983 | N6743Q | Private | 0 | Bastrop, LA | |
sub |
| 8 October 1987 | N6743Q | White Castle Fertilizer Coop | 0 | Port Allen, LA | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Jul-2014 22:15 | Geno | Added |
| 13-Mar-2016 21:02 | Dr.John Smith | Updated [Time, Registration, Location, Phase, Nature, Departure airport, Destination airport, Source, Narrative] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 30-Nov-2017 18:49 | ASN Update Bot | Updated [Cn, Operator, Departure airport, Destination airport, Source, Narrative] |
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