# NTSB ANC26FA106: Piper PA-18-150, N9128D, Northway, AK, September 18, 2026

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Class 3 · Field · Investigation open
- Date: September 17, 2026, 21:40 local (Sep 18, 2026, 05:40 UTC)
- Place: Northway, AK
- Location: 62.9617° N, 141.9372° W: Placed by OpenAirDocs: center of Northway, AK, within about 9 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=62.9617&lon=-141.9372&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Defining event: [Initial climb: Unknown or undetermined](https://openairdocs.org/ntsb-events/000)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Investigation ongoing
- Investigation class: Class 3
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 203844
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC26FA106
- Latest NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/203844/pdf
- Page: https://openairdocs.org/ntsb/ANC26FA106

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Initial climb: Unknown or undetermined](https://openairdocs.org/ntsb-events/000) (defining event); cases with it: [Piper PA-18-150, 8 cases](https://openairdocs.org/ntsb-events/000/sequence.md?model=7101828), [All aircraft, 1,703 cases](https://openairdocs.org/ntsb-events/000/sequence.md)

## Aircraft

- Registration: [N9128D](https://openairdocs.org/aircraft/N9128D), registered now, S/N 18-6509, built 1958 (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)
- Flight: Business, Part 135
- Operator: Hawk Mountain Air

## Weather

- Wind: 70° at 6 knots
- Observed at: 20 nm away

## Other investigations on N9128D (3)

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 ANC10CA088](https://openairdocs.org/ntsb/ANC10CA088), Sep 6, 2010: Piper PA-18-160 (N9128D), Arctic Village, AK, substantial damage. Probable cause: The pilot's failure to maintain control of the airplane during an off-airport landing.
- [NTSB ATL93LA022](https://openairdocs.org/ntsb/ATL93LA022), Nov 7, 1992: Piper PA-18-150 (N9128D), Columbia, SC, substantial damage. Probable cause: THE LOSS OF ENGINE POWER WHICH RESULTED FROM FUEL STARVATION WHEN THE CARBURETOR FLOAT VALVE STUCK IN THE CLOSED POSITION. A FACTOR WAS THE SOFT FIELD .
- [NTSB DEN87LA139](https://openairdocs.org/ntsb/DEN87LA139), May 30, 1987: Piper PA-18-150 (N9128D), Wolf Point, MT, substantial damage

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.

---
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.