# Accident 20160725011549A: Yakovlev/Yancey Robert F YAK-11, West Mifflin, PA, July 25, 2016

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 25, 2016, 09:45 local time
- Place: West Mifflin, PA
- Airport: Allegheny County Airport
- Damage: Destroyed
- Phase of flight: Landing: Rollout
- Operating rules: General operating rules (Part 91)
- Location: 40.3556° N, 79.9325° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=40.3556&lon=-79.9325&mi=10
- Aircraft: N5940, a cancelled registration (https://openairdocs.org/deregistered/N5940-2019-01-18) (OpenAirDocs)
- Registry model: Yakovlev/Yancey Robert F YAK-11 (registry code 9830109, https://openairdocs.org/model/yakovlev-yancey-robert-f-yak-11) (OpenAirDocs)
- Registry engine: Pratt & Whitney R-1830 series (registry code 52020, https://openairdocs.org/engine/pratt-whitney-r-1830-series) (OpenAirDocs)
- Reported make and model: YAKOVLEV/YANCEY ROBERT F YAK-11
- Reported engine: P & W R-1830 SERIES
- People aboard: 1
- Fatal injuries: 1
- Other injuries: 0
- Pilot certificates: Commercial pilot
- NTSB investigation: [NTSB ERA16FA269](https://openairdocs.org/ntsb/ERA16FA269) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20160725011549A

## Narrative

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

NOTE: ALL WITNESS STATEMENTS ARE AS SEEN FROM THE RAMP AREA AT KAGC FACING NORTH LOOKING AT THE LEFT SIDE OF THE AIRCRAFT ON LANDING AND ROLLOUT.  WITNESS STATED:  THE AIRCRAFT LANDED NORMAL ON RUNWAY 28.  DURING ROLLOUT THE AIRCRAFT CONTINUED JUST PAST TAXIWAY CHARLIE, IT SLOWED AND WAS STARTING A TURN.  ?PILOT HAD REQUESTED A 180 DEGREE TURN TO BACK TAXI TO TAXIWAY CHARLIE?.  AIRCRAFT WAS NOW HEADING EAST WHEN THERE WAS A LARGE FLAME ON THE RIGHT SIDE OF THE AIRCRAFT.  THE AIRCRAFT CONTINUED A TURN TO THE LEFT AND WENT OFF THE RIGHT SIDE OF RUNWAY 28 AND OUT INTO THE FIELD WHERE THE AIRCRAFT CAME TO REST.  INITIALLY, THE AIRCRAFT APPEARED UNDAMAGED WITH A SMALL AMOUNT OF SMOKE COMING FROM THE PILOT?S COMPARTMENT.  THE SMOKE AND FIRE CONTINUED TO GROW UNTIL IT CONSUMED MOST OF THE AIRCRAFT.

THE MAJORITY OF THE FIRE DAMAGE TO THE AIRCRAFT WAS CONTAINED TO THE FORWARD AND AFT COCKPIT AND LEFT WING.  THE AREA WITHIN THE PILOT?S COMPARTMENT WAS SEVERELY BURNED, AS MOST OF THE ALUMINUM, WIRING, AND INSTRUMENTS WERE MELTED.  THE FIRE DAMAGE TO THE LEFT WING SPREAD FROM THE FUSELAGE OUTWARD FROM A WIND HEADING OF 180 DEGREES AT 8 KNOTS.

THE TUBULAR STEEL FUSELAGE WAS SEVERELY DAMAGED FROM THE INTENSE HEAT.  THE FIRE BURNED FOR AT LEAST 30 PLUS MINUTES, AND WAS FED BY ADDITIONAL FUEL AS THE FUEL SYSTEM COMPONENTS FAILED AND CONTINUED TO FEED FUEL TO THE FIRE.

AS OF 8-18-2016, THE PILOT RECORDS WERE UNAVAILABLE.  THE AIRCRAFT DATE OF MANUFACTURE IS ESTIMATED TO BE BETWEEN 1945 AND 1955.

## 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 ERA16FA269](https://openairdocs.org/ntsb/ERA16FA269), Jul 25, 2016: Yakovlev YAK11 (N5940), West Mifflin, PA, substantial damage, 1 fatal. Probable cause: A malfunction of the electrical system, which resulted in an electrical fire in the right wing root of the airplane, which compromised the fuel system and resulted in ignition of fuel. Contributing…

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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