# Incident 20151123020809I: Beech B-99, Eugene, OR, November 23, 2015

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: November 23, 2015, 20:30 local time
- Place: Eugene, OR
- Airport: Eugene
- Damage: No damage
- Phase of flight: Cruise/Level Flight
- Operating rules: Air taxi and commuter (Part 135)
- Operator: JIKA
- Location: 44.1246° N, 123.2120° W: Placed by OpenAirDocs at Eugene Airport (EUG), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.1246&lon=-123.2120&mi=10
- Aircraft: N4299A, registered now (https://openairdocs.org/aircraft/N4299A) (OpenAirDocs)
- Registry model: Beech B-99 (registry code 1154004, https://openairdocs.org/model/beech-b-99) (OpenAirDocs)
- Registry engine: U/A Canada PT6A-27-28 (registry code 61504, https://openairdocs.org/engine/u-a-canada-pt6a-27-28) (OpenAirDocs)
- Reported make and model: BEECH B-99
- Reported engine: U/A CANADA PT6A-27-28
- People aboard: 1
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Airline transport, flight instructor
- Pilot flight hours: 3,510 total, 238 in this make and model, 193 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20151123020809I

## Narrative

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

DURING AN IFR FLIGHT (NIGHT, IMC CONDITIONS) THE #1 INVERTER FAILED.

THE PILOT SWITCHED TO THE #2 INVERTER, BUT IT FAILED TO POWER THE AIRCRAFT SYSTEMS.

THE RESULT WAS LOSS OF MANY OF THE ENGINE INSTRUMENTS, SOME PRIMARY FLIGHT INDICATORS AND NAVIGATIONAL CAPABILITY.

THE PILOT DECLARED AN EMERGENCY AND  RECEIVED VECTORS AND A DESCENT OUT OF THE WEATHER TO VMC.  THE PILOT ELECTED TO DIVERT, VMC, TO AN APPROPRIATE NEARBY AIRFIELD (EUG), DESCENDED AND LANDED WITHOUT FURTHER INCIDENT.

POST INCIDENT MAINTENANCE REVEALED THE #1 INVERTER HAD FAILED. UPON REPLACEMENT, THE AIRCRAFT SYSTEMS WORKED NORMALLY, INCLUDING THE #2 INVERTER AND SWITCHING BETWEEN INVERTERS.

IT IS COMPANY POLICY TO USE THE INVERTER ON ALTERNATE DAYS (#1 ON ODD DAYS OF THE MONTH, AND #2 ON EVEN DAYS OF THE MONTH).  THERE WAS NO REPORT OF PREVIOUS PROBLEMS WITH EITHER INVERTER.

IT IS UNKNOWN WHY, WHEN THE PILOT SWITCHED TO THE #2 INVERTER INFLIGHT, THAT IT DID NOT PROVIDE POWER TO THE AIRCRAFT.

## Other reports on N4299A (5)

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

- [Incident 20030228003119I](https://openairdocs.org/incident/20030228003119I), Feb 28, 2003: Beech B99 (N4299A), Oakland, CA, Minor damage. (-23) Received notification of inbound BE-99 to oak with an unsafe NLG indication. Visual observation from another aircraft in flight was that the NLG was…
- [Incident 19940712033399I](https://openairdocs.org/incident/19940712033399I), Jul 12, 1994: Beech B99 (N4299A), Oakland, CA, Minor damage. Unable gear up light,returned. Unable get down light on nose gear. Nose gear collapsed landing. Actuator lost fluid.
- [Incident 19910109002679I](https://openairdocs.org/incident/19910109002679I), Jan 9, 1991: Beech B99 (N4299A), Bakersfield, CA, Minor damage. Smoke in cockpit on approach. Landed safely. Electrical short in circuit breaker backlight panel assembly.
- [Incident 19850220009069I](https://openairdocs.org/incident/19850220009069I), Feb 20, 1985: Beech B99 (N4299A), Manassas, VA, Minor damage. Gear would not lock down and low hydraulic fluid light came on. Crack in left main gear actuator end cap.
- [Incident 19800122016519I](https://openairdocs.org/incident/19800122016519I), Jan 22, 1980: Beech 99 (N4299A), New Orleans, LA, Minor damage. Fire detector test switch shorted out. Copilot pulled engine fire detector circuit breaker. Continued flight.

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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