# Incident 19781209022129I: Dhav DHC6/, Boston, MA, December 9, 1978

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: December 9, 1978, 13:23 local time
- Place: Boston, MA
- Airport: International
- Damage: Minor damage
- Phase of flight: Ground Taxi, Other Airplane
- Operating rules: Air taxi and commuter (Part 135)
- Location: 42.3584° N, 71.0598° W: Placed by OpenAirDocs: center of Boston, MA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.3584&lon=-71.0598&mi=10
- Aircraft: N3434, a cancelled registration (https://openairdocs.org/deregistered/N3434-2018-03-13) (OpenAirDocs)
- Registry model: Dehavilland DHC-6 TWIN OTTER (registry code 2802606, https://openairdocs.org/model/dehavilland-dhc-6-twin-otter) (OpenAirDocs)
- Registry engine: Pratt & Whitney Canada PT6A-60A (registry code 52043, https://openairdocs.org/engine/pratt-whitney-canada-pt6a-60a) (OpenAirDocs)
- Reported make and model: DHAV DHC6/
- People aboard: 50
- Fatal injuries: 0
- Pilot flight hours: 47,000 total, 1,500 in this make and model, 0 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19781209022129I

## Narrative

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

LOW VOLTAGE FROM AUXILIARY BATTERY CAUSED REVERSE CURRENT RELAY TO CHATTER AND WELD. FIRE RESULTED.

## Other reports on N3434 (5)

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

- [Accident 20050604012369A](https://openairdocs.org/incident/20050604012369A), Jun 4, 2005: Dhav DHC6300 (N3434), Rittman, OH, Substantial damage. (-23) Pilot #2 was "checking out" pilot #1, they picked up some parachutist and came back down got another load and dropped them off also. On the approach to…
- [Accident 19850403012889A](https://openairdocs.org/incident/19850403012889A), Apr 3, 1985: Dhav DHC6200 (N3434), Grand Rapids, MI, Substantial damage. Assumed yawing due to engine failure. Reduced power, bounced off runway side, sheared nosegear. No engine failure.
- [Incident 19801126080729I](https://openairdocs.org/incident/19801126080729I), Nov 26, 1980: Dhav DHC6200 (N3434), White Plains, NY, Minor damage. One engine would not accelerate above idle, takeoff aborted. Accessory section oil screen blocked with carbon.
- [Incident 19780727036149I](https://openairdocs.org/incident/19780727036149I), Jul 27, 1978: Dhav DHC6/ (N3434), Poughkeepsie, NY, Minor damage. Engine failed after loud bang. It was out of oil and gas generator had seized.
- [Incident 19780420011199I](https://openairdocs.org/incident/19780420011199I), Apr 20, 1978: Dhav DHC6/ (N3434), Poughkeepsie, NY, Minor damage. Engine shutdown and aircraft diverted after oil pressure fluctuation, torque deterioration and increased itt.

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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