Grumman American AA-1A | N9439L
November 26th, 2025 | Alamogordo, New Mexico
Accident Location
- City: Alamogordo
- State: New Mexico
- Latitude: 32.917778
- Longitude: -105.7825
- Airport ID: KALM
Aircraft Info
- N Number: N9439L
- Make: Grumman American
- Model: AA-1A
- Aircraft Category: Aircraft Single Engine Land
- Amateur Built: No
Pilot Info
- PIC Name: Cheung, Patrick Waiking
- Gender: Male
- Pilot Age: 40
- Pilot Hours:
- Flight School: No
- Instructional Flight: No
- Pilot Certification: Private Pilot
- IFR Rating: No
- Pilot Error: Yes
- Pilot Medical: 3rd Class Medical
- Pilot Incapacitation: No
Analysis
- Date: November 26th, 2025
- Time: 11:40 AM Local Time
- Day / Night: Day
- VMC / IMC: VMC
- Phase Of Flight: Enroute
- Total People Onboard: 2
- PIC Fatality: 1
- PAX Fatalities: 1
- Ground Fatalities: 0
- Total Fatalities: 2
- NTSB No:
- NTSB Travel: Unknown
- AQP Classification: 12) LOSS OF SPEED AWARENESS, U-FIT
Probable Cause
DTSB: Pending. Likely high density altitude attempted course reversal out of a box canyon and stall, spin.
NTSB: NONE
Recommendation
DTSB: Pending.
NTSB: NONE
DISCLAIMER: All data and Probable Cause listings are “Probable” only. They are based on opinion and educated speculation, and are for educational purposes only. They may contain incorrect information and are subject to change as new information becomes available.