# NTSB DEN90TL#01: Piper PA-18-150, N726, Alamagordo, NM, November 8, 1989

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Class 3 · Final report
- Date: November 8, 1989, 16:30 local (23:30 UTC)
- Place: Alamagordo, NM
- Coordinates: 32.810794, -105.989601 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.8108&lon=-105.9896&mi=10
- Highest injury: Serious injuries
- Injuries: 2 serious
- Status: Completed
- Investigation class: Class 3
- NTSB case key (mKey): 17998
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN90TL#01
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17998/pdf
- Page: https://openairdocs.org/ntsb/DEN90TL%2301

## Aircraft

- Registration: [N726](https://openairdocs.org/aircraft/N726), registered now, S/N 18-8309021 (OpenAirDocs)
- Reported make and model: PIPER PA-18-150
- Registry model: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18-8309021
- Damage: Destroyed
- Fire: Unknown
- Flight: Public aircraft, Public use
- Operator: U.S. Department Of Agriculture
- Registered owner: US Department Of Agriculture
- Departed: ALM, ALMAGORDO, NM
- Destination: ALM

## Weather

- Conditions: Visual (VMC), Day
- Wind: 320° at 5 knots
- Lowest ceiling: none
- Temperature: 64 °F

## Other investigations on N726 (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 GAA19CA158](https://openairdocs.org/ntsb/GAA19CA158), Mar 7, 2019: Piper PA18 (N726), Wyndmere, ND, substantial damage. Probable cause: The pilot's exceedance of the airplane's critical angle of attack during an uncoordinated turn while maneuvering at low altitude, which resulted in an aerodynamic stall.

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.

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