# Accident 20240610008519A: Dehavilland BEAVER L-20A, Port Alsworth, AK, June 10, 2024

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: June 10, 2024, 16:30 local time
- Place: Port Alsworth, AK
- Airport: Kijik Lake
- Damage: Substantial damage
- Phase of flight: Cruise/Level Flight
- Operating rules: General operating rules (Part 91)
- Operator: ITDC
- Location: 60.2037° N, 154.3968° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=60.2037&lon=-154.3968&mi=10
- Aircraft: N4957, registered now (https://openairdocs.org/aircraft/N4957) (OpenAirDocs)
- Registry model: Dehavilland BEAVER L-20A (registry code 2800104, https://openairdocs.org/model/dehavilland-beaver-l-20a) (OpenAirDocs)
- Registry engine: Pratt & Whitney R-985 series (registry code 52008, https://openairdocs.org/engine/pratt-whitney-r-985-series) (OpenAirDocs)
- Reported make and model: DEHAVILLAND BEAVER L-20A
- Reported engine: P&W R-985 SERIES
- People aboard: 6
- Fatal injuries: 0
- Other injuries: 1
- Pilot certificates: Commercial pilot
- Pilot flight hours: 594 total, 51 in this make and model
- NTSB investigation: [NTSB ANC24LA049](https://openairdocs.org/ntsb/ANC24LA049) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20240610008519A

## Narrative

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

LOADED UP THE PASSANGERS AT KIJIK LAKE. GAVE SAFETY BRIEFING.WARMED UP ENGINE TO 40 DEGREES.ENGINE OIL WAS AT CORRECT TEMP. RAN CARB HEAT TO APPROPRITE TEMPS. TURNED CARB HEAT OFF, CYCLED PROP 4 TIMES LOOKING AT RPM’S, MP AND OIL PRESSURE. AFTER THE PROP CYCLE CHECKED MAGS TO ENSURE THEY WERE WITHIN TOLERENCE. AFTER THE RUN UP WENT TO THE FARTHEST EDGE OF THE LAKE AND TOOK OFF. SHORTLY AFTER TAKE OFF ADJUSTED MP, RPMS AND FLAPS FOR CLIMB. AROUND 3 MILES AFTER TAKE OFF FELT MP FALL AT WHICH TIME WENT FULL PROP AND FULL POWER. THE ENGINE HAD A SMALL SPOOL UP THEN MP FELL AND EXECUTED AN EMERGENCY LANDING.

## 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 ANC24LA049](https://openairdocs.org/ntsb/ANC24LA049), Jun 11, 2024: Dehavilland Beaver L-20A (DHC-2) (N4957), Port Alsworth, AK, substantial damage. Probable cause: A partial loss of engine power for reasons that could not be determined.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.