# Accident 19990724009639A: Air Tractor AT-401B, Mccana, ND, July 24, 1999

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 24, 1999
- Place: Mccana, ND
- Damage: Substantial damage
- Location: 47.8998° N, 97.6197° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=47.8998&lon=-97.6197&mi=10
- Aircraft: N6006A, a cancelled registration (https://openairdocs.org/deregistered/N6006A-2001-10-12) (OpenAirDocs)
- Registry model: Air Tractor AT-401B (registry code 0390207, https://openairdocs.org/model/air-tractor-at-401b) (OpenAirDocs)
- Registry engine: Pratt & Whitney R1340 series (registry code 52016, https://openairdocs.org/engine/pratt-whitney-r1340-series) (OpenAirDocs)
- NTSB investigation: [NTSB CHI99LA258](https://openairdocs.org/ntsb/CHI99LA258) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990724009639A

## Narrative

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

ACFT STALLED DURING AERIAL APPLICATION AND CRASHED, OTHER CIRCUMSTANCES AE UNKNOWN. (-23)THE AIRCRAFT WAS BEING OPERATED IN COMMERICAL AERIAL APPLICATION SERVICE UNDER 14 CFR PART 137.  THE COMMERICALLY RATED PILOT STATES THAT HE WAS IN THE PROCESS OF A TURN AROUND AFTER A SWATH RUN WHEN THE AIRCRAFT STALLED.  A WITNESS REPORTED THAT THE AIRCRAFT CAME DOWN "LIKE A HELICOPTER", INDICATING A STALL/SPIN TYPE ACCIDENT.  THE WRECKAGE ALSO INDICATES DAMAGE CONSISTENT WITH A LOSS OF CONTROL RESULTING IN A STALL/SPIN ACCIDENT.  THE PILOT REPORTS  THAT THE WEATHER CONDITIONS INCLUDED HOT TEMPERATURES AND HUMID CONDITIONS.  ADDITIONALLY, THE MANUFACTURER OF THE AIRCRAFT RECOMMENDS THE USE OF FLAPS ON TAKE OFF AND DURING TURNS. THE FLAPS WERE FOUND IN THE RETRACTED POSITION.

## 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 CHI99LA258](https://openairdocs.org/ntsb/CHI99LA258), Jul 24, 1999: Air Tractor 401B (N6006A), Mccanna, ND, substantial damage. Probable cause: the inadvertent stall by the pilot.

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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