# Accident 20080811849849A: Joness LANCAIRIVP, Stafford, VA, August 11, 2008

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 11, 2008, 09:30 local time
- Place: Stafford, VA
- Airport: Stafford Regional
- Damage: Substantial damage
- Phase of flight: Normal Cruise
- Operating rules: General operating rules (Part 91)
- Location: 38.3981° N, 77.4556° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=38.3981&lon=-77.4556&mi=10
- Aircraft: N731SJ, a cancelled registration (https://openairdocs.org/deregistered/N731SJ-2011-04-11) (OpenAirDocs)
- Registry model: Jones Steven LANCAIR-IV-P (registry code 05620O6, https://openairdocs.org/model/jones-steven-lancair-iv-p) (OpenAirDocs)
- Registry engine: Continental TSIO-550-E (registry code 17247, https://openairdocs.org/engine/continental-tsio-550-e) (OpenAirDocs)
- Reported make and model: JONESS LANCAIRIVP
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 12,200 total, 94 in this make and model, 30 in the last 90 days
- NTSB investigation: [NTSB NYC08FA292](https://openairdocs.org/ntsb/NYC08FA292) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20080811849849A

## Narrative

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

(-23) THE AIRCRAFT, N731SJ A LANCAIR IV-P DEPARTED FROM KRMN FOR A LOCAL FLIGHT AT APPROX 0915.  UPON REACHING A CRUISE ALTITUDE OF 3000 FEET THE PIC TURNED ON THE AFT AUX BATTERY IN ORDER TO CHARGE IT WITH THE ALTERNATOR.  A SHORT TIME LATER HE DETECTED SMOKE AND IMMEDIATELY TURNED OFF ALL ELECTRICAL POWER.  PIC IMMEDIATELY RETURNED TO THE AIRPORT AND LANDED UNEVENTFULLY.  THERE WERE NO INJURIES TO PIC OR PASSENGER OTHER THAN MINOR COMPLAINTS OF SMOKE AND FUME INHALATION.  UPON INSPECTION OF THE AIRCRAFT BY THE FAA, SUBSTANTIAL DAMAGE WAS FOUND IN THE AFT SECTION OF THE AIRCRAFT WHERE THE AFT BATTERY WAS LOCATED.  THE FIRE SEVERELY DAMAGED THE AFT BATTERY MOUNTING STRUCTURE AND CAUSED SEVERE DEFORMATION AND DELAMINATION TO THE SURROUND COMPOSITE FUSELAGE STRUCTURES WITHIN AN APPROXIMATE 3 FOOT RADIUS OF THE BATTERY MOUNTING POSITION.

## 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 NYC08FA292](https://openairdocs.org/ntsb/NYC08FA292), Aug 11, 2008: Steven A. Jones Lancair IV P (N731SJ), Stafford, VA, substantial damage. Probable cause: The pilot's decision to install voltage regulators in the engine compartment where they were susceptible to water intrusion, which resulted in a malfunction of the standby electrical system's voltage…

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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