# Accident 20170701010819A: North Wing Uum Inc SCOUT X-C, Chelan, WA, July 1, 2017

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 1, 2017, 07:15 local time
- Place: Chelan, WA
- Damage: Substantial damage
- Phase of flight: Cruise/Level Flight
- Operating rules: General operating rules (Part 91)
- Location: 47.9203° N, 119.8697° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=47.9203&lon=-119.8697&mi=10
- Aircraft: N492XB, registered now (https://openairdocs.org/aircraft/N492XB) (OpenAirDocs)
- Registry model: North Wing Uum SCOUT X-C (registry code 060006R, https://openairdocs.org/model/north-wing-uum-scout-x-c) (OpenAirDocs)
- Registry engine: Rotax 912UL series (registry code 55571, https://openairdocs.org/engine/rotax-912ul-series) (OpenAirDocs)
- Reported make and model: NORTH WING UUM INC SCOUT X-C
- Reported engine: ROTAX 912UL
- People aboard: 2
- Fatal injuries: 2
- Other injuries: 0
- Pilot certificates: Flight instructor, private pilot
- Pilot flight hours: 6,000 total
- NTSB investigation: [NTSB WPR17FA139](https://openairdocs.org/ntsb/WPR17FA139) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20170701010819A

## Narrative

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

ON JULY 02, 2017 N492X IMPACTED INTO THE SIDE OF A MOUNTAIN APPROXIMATELY 20 FEET FROM THE SUMMIT. THE AIRCRAFT ROLLED DOWN THE MOUNTAIN APPROXIMATELY 30 FEET LEAVING DEBRIS FROM THE INITIAL IMPACT POINT.

DURING THE ONSITE EXAMINATION OF THE WRECKAGE IT WAS DETERMINED THAT ALL MAJOR COMPONENTS WERE AT THE ACCIDENT SITE. THE IMPACT CAUSED THE FUEL TANK TO RUPTURE AND THERE WAS A STRONG SMELL OF FUEL. THE SURROUNDING GROUND AROUND THE FUEL TANK SHOWED EVIDENCE OF FUEL BEING PRESENT AT THE TIME OF THE ACCIDENT.

WITH THIS AIRCRAFT BEING CONTROLLED BY WEIGHT SHIFT A TRADITIONAL CONTROL CONTINUITY CHECK DID NOT APPLY HOWEVER, THERE WAS A SET OF ?INSTRUCTOR BARS? INSTALLED AT THE TIME OF THE ACCIDENT. THIS ALLOWED THE AIRCRAFT TO BE CONTROLLED FROM THE REAR SEAT. THE AIRCRAFT OWNER WAS A DESIGNATED PILOT EXAMINER AND WAS LOCATED IN THE REAR SEAT. IT HAS BEEN REPORTED THAT THE PASSENGER RECEIVED A PILOT?S CERTIFICATE FROM THE AIRCRAFT OWNER THE PREVIOUS DAY, ALTHOUGH PAPERWORK HAS NOT YET BEEN FOUND FOR THE CHECKRIDE. IT COULDN?T BE DETERMINED WHO WAS CONTROLLING THE AIRCRAFT AT THE TIME OF THE ACCIDENT.

THE AIRCRAFT AND PILOTS RECORDS COULDN?T BE LOCATED DURING THE ONSITE INVESTIGATION.

THIS REPORT MAYBE AMENDED AT A LATER DATE.

## 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 WPR17FA139](https://openairdocs.org/ntsb/WPR17FA139), Jul 1, 2017: North Wing Uum Sport X2 912 (N492XB), Chelan, WA, destroyed, 2 fatal. Probable cause: The flight instructor's failure to maintain control of the aircraft while demonstrating a spiral dive, which resulted in a loss of control. Contributing to the accident was the instructor's decision…

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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