# Accident 19980530011379A: Amtr MUSTANGD, Marsing, ID, May 30, 1998

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: May 30, 1998, 12:45 local time
- Place: Marsing, ID
- Damage: Destroyed
- Phase of flight: Descent
- Operating rules: General operating rules (Part 91)
- Location: 43.4790° N, 116.8394° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=43.4790&lon=-116.8394&mi=10
- Aircraft: N151TM, a cancelled registration (https://openairdocs.org/deregistered/N151TM-1999-09-20) (OpenAirDocs)
- Registry model: Denney Charles O THUNDER MUSTANG (registry code 05603GS, https://openairdocs.org/model/denney-charles-o-thunder-mustang) (OpenAirDocs)
- Reported make and model: AMTR MUSTANGD
- People aboard: 2
- Fatal injuries: 2
- Pilot flight hours: 3,300 total, 100 in this make and model
- NTSB investigation: [NTSB SEA98FA083](https://openairdocs.org/ntsb/SEA98FA083) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19980530011379A

## Narrative

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

LOST POWER. SPUN INTO GROUND. AIRWORTHINESS CERTIFICATE EXPIRED. (.4) THE PURPOSE OF THE FLIGHT WAS TO DEMONSTRATE THE AIRPLANE'S PERFORMANCE ENVELOPE AND FLIGHT CHARACTERISTICS TO AN INDIVIDUAL WHO HAD RECENTLY INVESTED IN THE COMPANY, THAT PRODUCES THE KITS FOR BUILDING THIS EXPERIMENTAL AIRCRAFT. FOR THE FIRST FIVE MINUTES OF THE FLIGHT, THE MUSTANG FLEW IN FORMATION WITH AN AIRCRAFT BEING FLOWN BY A COMPANY OFFICIAL, AND THEN THE MUSTANG DEMONSTRATION PILOT PROCEEDED TO AN AREA SOUTH OF MARSING, IDAHO. THE AIRCRAFT WAS OBSERVED PERFORMING A SERIES OF MANEUVERS IN THAT AREA UNDER A CEILING THAT WAS ESTIMATED AT 2,000 TO 2,500 FEET AGL. RECORDED ELECTRONIC ENGINE PERFORMANCE DATA INDICATED THAT THE AIRCRAFT'S THROTTLE WAS RETARDED TO IDLE ABOUT A MINUTE AND FORTY-FIVE SECONDS PRIOR TO IMPACT.  WITNESSES SAID THAT AFTER THEY HEARD THE POWER REDUCED, THE AIRCRAFT CLIMBED FOR AWHILE AND THEN BEGAN TO SLOW.  AS THE AIRCRAFT'S SPEED BECAME 'VERY SLOW' ITS NOSE DROPPED AND IT LOST A FEW HUNDRED FEET OF ALTITUDE.  AFTER LEVELING OFF AND SLOWING AGAIN, THE AIRCRAFT'S NOSE DROPPED A SECOND TIME.  SOON THEREAFTER THE AIRCRAFT ROLLED TO THE LEFT AND IMPACTED THE GROUND FROM AN ALTITUDE THA T WAS ESTIMATED TO BE BETWEEN 75 FEET AND '...TWO AND ONE-HALF TIMES THE HEIGHT OF THE NEARBY POWER LINE TOWERS.' THE RECORDED ENGINE DATA SHOWED THAT ABOUT FIVE SECONDS BEFORE IMPACT, THE AIRCRAFT'S THROTTLE WAS PUSHED FORWARD TO ABOUT 72%, AND THE ENGINE ACCELERATED TO ALMOST 4,100 RPM.  ABOUT ONE SECOND BEFORE IMPACT THE THROTTLE WAS RETARDED TO IDLE.                  (-23) NO NARRATIVE.

## 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 SEA98FA083](https://openairdocs.org/ntsb/SEA98FA083), May 30, 1998: Papa 51 Thunder Mustang (N151TM), Marsing, ID, destroyed, 2 fatal. Probable cause: The pilot's failure to maintain adequate airspeed which resulted in a stall.

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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