# Accident 20090807016549A: Amtr CH701, Rutherford, TN, August 7, 2009

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 7, 2009, 11:00 local time
- Place: Rutherford, TN
- Damage: Substantial damage
- Phase of flight: Cruise/Level Flight
- Operating rules: General operating rules (Part 91)
- Location: 35.9767° N, 86.3569° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=35.9767&lon=-86.3569&mi=10
- Aircraft: N75644, a cancelled registration (https://openairdocs.org/deregistered/N75644-2018-03-19) (OpenAirDocs)
- Registry model: Lobb Kenneth CH 701 (registry code 05625D0, https://openairdocs.org/model/lobb-kenneth-ch-701) (OpenAirDocs)
- Registry engine: Continental O-200 series (registry code 17402, https://openairdocs.org/engine/continental-o-200-series) (OpenAirDocs)
- Reported make and model: AMTR CH701
- Reported engine: CONT O200*
- People aboard: 2
- Fatal injuries: 0
- Other injuries: 0
- Pilot flight hours: 450 total, 8 in this make and model, 2 in the last 90 days
- NTSB investigation: [NTSB ERA09LA446](https://openairdocs.org/ntsb/ERA09LA446) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20090807016549A

## Narrative

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

(-23)  AIRCRAFT IN STRAIGHT AND LEVEL FLIGHT AT APPROXIMATELY 1700 FEET MSL WHEN ENGINE QUIT FOR UNKNOWN REASON.  PASSENGER TRIED TO RESTART ENGINE AND WAS UNNECESSAIRLY.  PILOT MADE EMERGENCY LANDING IN FIELD.  AIRCRAFT HIT RUT IN FIELD AND NOSE GEAR AND LEFT MAIN COLLAPSED.  LEFT WING BROKE LOOSE FROM REAR MOUNT AND ENGINE MOUNT BUCKLED FIREWALL.  AIRCRAFT LEFT SMYRNA AIRPORT MQY AND LANDED AT MURFREESBORO MBT, DEPARTED MBT AND WAS IN CRUISE FLIGHT OF ABOUT 20 MINUTES WHEN ENGINE QUIT FOR REASONS UNKNOWN.  ENGINE TEAR DOWN REVEALED THAT ALTERNATOR DRIVE GEAR HAD SHEARED AND JAMMED ACCESSORY DRIVE STOPPING ENGINE.  ALTERNATOR DRIVE GEAR RETAINING NUT DID NOT HAVE COTTER PIN LOCKING DEVICE INSTALLED ALLOWING NUT TO BACK OFF CAUSING UNIT TO JAM AND SHEAR OFF THEN BECOME LODGED INTO ACCESSORY DRIVE GEARS.

## 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 ERA09LA446](https://openairdocs.org/ntsb/ERA09LA446), Aug 7, 2009: Lobb Kenneth CH 701 (N75644), Murfreesboro, TN, substantial damage. Probable cause: A total loss of engine power due to the improper installation of the alternator drive gear.

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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