ASN Wikibase Occurrence # 40423
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| Date: | Saturday 30 May 1998 |
| Time: | 13:45 LT |
| Type: | Papa 51 Thunder Mustang |
| Owner/operator: | Papa 51 Ltd. Co |
| Registration: | N151TM |
| MSN: | TMD-9607-001 |
| Total airframe hrs: | 310 hours |
| Engine model: | Falconer Eng. V-12 |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Marsing, ID -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Private |
| Departure airport: | Nampa, ID (S67) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
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 that 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.
Probable Cause: The pilot's failure to maintain adequate airspeed which resulted in a stall.
Accident investigation:
 |
|
Sources:
NTSB SEA98FA083
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 07-Apr-2024 11:47 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Source, Narrative, Category, Accident report] |
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