# Incident 19970404009559I: Cessna T210M, Farmington, NM, April 4, 1997

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: April 4, 1997, 07:54 local time
- Place: Farmington, NM
- Airport: Four Corners Regional Airport
- Phase of flight: Final Approach-IFR
- Operating rules: Air taxi and commuter (Part 135)
- Operator: GNXA
- Location: 36.7413° N, 108.2299° W: Placed by OpenAirDocs at FOUR CORNERS RGNL (FMN), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.7413&lon=-108.2299&mi=10
- Aircraft: N6687B, a cancelled registration (https://openairdocs.org/deregistered/N6687B-2002-08-14) (OpenAirDocs)
- Registry model: Cessna T210M (registry code 2073451, https://openairdocs.org/model/cessna-t210m) (OpenAirDocs)
- Registry engine: Continental TSIO-520 series (registry code 17040, https://openairdocs.org/engine/continental-tsio-520-series) (OpenAirDocs)
- Reported make and model: CESSNA T210M
- People aboard: 1
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19970404009559I

## Narrative

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

NARRATIVE: AIRCRAFT DEPARTED ALBUQUERQUE INTERNATIONAL AIRPORT FOR FARMINGTON, NM (FMN) ON A TITLE 14 CFR PART 135 FLIGHT. THE PILOT FILED AN IFR FLIGHT PLAN AND WAS ON APPROACH FOR FMN AIRPORT WHEN THE ELECTRICAL SYSTEM FAILED. PILOT DISCONTINUED THE APPROACH AND CLIMBED UNTIL VFR CONDITIONS EXISTED. THE PILOT ELECTED TO RETURN TO ALBUQUERQUE WHERE VMC PREVAILED. THE PILOT UTILIZED THE EMERGENCY GEAR EXTENSION PROVISIONS AND LANDED WITHOUT INCIDENT. INVESTIGATION REVEALED THE BOLT FAILED ON THE ALTERNATOR ADJUSTING BRACKET WHERE IT ATTACHES TO THE ENGINE. THIS ALLOWED THE ALTERNATOR TO MOVE UNTIL THE ELECTRICAL TERMINAL ON THE ALTERNATOR CONTACTED A GROUND CAUSING A DIRECT SHORT. THIS ULTIMATELY CAUSED THE TERMINAL TO BURN INTO AND THE LOSS OF ELECTRICAL POWER TO THE MAIN BUSS. 	3. MAINTENANCE PERSONNEL DETERMINED THE FAILED BOLT TO BE A NON-STANDARD BOLT. A REVIEW OF THE AIRCRAFT RECORDS WERE INCONCLUSIVE REGARDING AS TO WHEN OR BY WHOM THE BOLT WAS INSTALLED. 	4. THE INSTALLATION OF AN UNAPPROVED BOLT IS A VIOLATION OF THE FAR'S. HOWEVER IN THIS CASE THE EVIDENCE AVAILABLE DOES NOT SUBSTANTIATE ENFORCEMENT ACTION. MALFUNCTION OR DEFECT REPORT SUBMITTED.

## Other reports on N6687B (1)

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

- [Accident 19990806010919A](https://openairdocs.org/incident/19990806010919A), Aug 6, 1999: Cessna T210M (N6687B), Clovis, NM, Damage unknown, 1 fatal. Cargo acft crashed under unknown circumstances, the pilot/sole occupant suffered fatal injuries, the acft was destroyed. (-23) on August 6, 1999, Mr. Pierre a.…

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.