# Accident 20010828024169A: Scwzer G164B, Rayville, LA, August 28, 2001

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 28, 2001, 16:45 local time
- Place: Rayville, LA
- Damage: No damage
- Operating rules: Agricultural (Part 137)
- Operator: B3BG
- Location: 32.4706° N, 91.7493° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=32.4706&lon=-91.7493&mi=10
- Aircraft: N2LU, registered now (https://openairdocs.org/aircraft/N2LU) (OpenAirDocs)
- Registry model: Gulfstream-Schweizer A/C GULFSTREAM AM G-164B (registry code 3979904, https://openairdocs.org/model/gulfstream-schweizer-a-c-gulfstream-am-g-164b) (OpenAirDocs)
- Registry engine: Pratt & Whitney R-985 series (registry code 52008, https://openairdocs.org/engine/pratt-whitney-r-985-series) (OpenAirDocs)
- Reported make and model: SCWZER G164B
- NTSB investigation: [NTSB FTW01LA193](https://openairdocs.org/ntsb/FTW01LA193) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20010828024169A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) DURING AERIAL APPLICATION, THE PILOT COMPLETED A PASS AND BEGAN TO PULL UP. A SINGLE BACKFIRE WAS HEARD AND THE PILOT CONTINUED HIS CLIMB TO 200-300 FEET. HE CIRCLED FOR A FEW MINUTES AND THE ENGINE WAS RUNNING NORMAL. THE PILOT THEN MADE ANOTHER PASS OVER THE FIELD. AFTER THIS PASS, THE ENGINE BEGAN TO BACKFIRE AND RUN ROUGH WITH LITTLE POWER OUTPUT. A LANDING IN THE FIELD WAS ATTEMPTED AND THE MAIN GEAR SUNK IN SOFT DIRT AND THE AIRCRAFT FLIPPED OVER ON ITS BACK. VISUAL INSPECTION REVEALED A SHEARED SIMMS COUPLING ON THE RIGHT MAGNETO. THE COUPLING WAS SHEARED ON THE MAGNETO SIDE. THE MAGNETO WAS DISASSEMBLED AND SMALL SLIVERS OF METAL WAS FOUND IN AND AROUND THE AMATURE. SCORING WAS FOUND ON THE ARMATURE. ONE OF THE SLIVERS WAS PLACED BETWEEN THE ARMATURE AND COIL RESULTING IN IMMEDIATED BINDING OF THE ARMATURE. THE SOURCE OF THE METAL COULD NOT BE DETERMINED AND NO OTHER DEFECTS IN THE MAGNETO WERE FOUND. THE EVIDENCE INDICATES THAT THE METAL ENTERED THE ARMATURE AND COIL CAUSING IT TO BIND AND SHEAR THE COUPLING. THE MAGNETO JUMPED TIMING AND FIRED RANDOMLY CAUSING THE ENGINE LOSS OF POWER.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB FTW01LA193](https://openairdocs.org/ntsb/FTW01LA193), Aug 28, 2001: Grumman G164B (N2LU), Rayville, LA, substantial damage. Probable cause: the partial failure of the magneto drive coupling while maneuvering, which resulted in a loss of engine power and a forced landing. A contributing factor to the accident was the lack of suitable…

## Other reports on N2LU (3)

Matched to the same aircraft by N-number and date.

- [Accident 20110527015879A](https://openairdocs.org/incident/20110527015879A), May 27, 2011: Gulfstream-Schweizer A/C Corp GULFSTREAM AM G-164B (N2LU), Oak Ridge, LA, Substantial damage. While in turn over woods aircraft loss power, settled into trees.
- [Incident 20030711014459I](https://openairdocs.org/incident/20030711014459I), Jul 11, 2003: Scwzer G164B (N2LU), Rayville, LA, Minor damage. (-23) Pilot was practicing GPS approaches and while over a field at about 600 feet, the engine quit. The pilot made a 160 degree turn back towards the airport…
- [Accident 19971124034879A](https://openairdocs.org/incident/19971124034879A), Nov 24, 1997: Scwzer G164B (N2LU), Lecompte, LA, Substantial damage. Acft stalled on take off and struck trees. Lecompte, LA. (.4)during the initial climb, at about 50 to 75 feet AGL, the instructor noticed that the airspeed was…

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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