# NTSB ANC22LA071: Stinson 10A, N5847X, Port Alsworth, AK, September 3, 2022

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 4 · Limited · Final report
- Date: September 2, 2022, 19:35 local (Sep 3, 2022, 03:35 UTC)
- Place: Port Alsworth, AK · 15 MILES NW PORT ALSWORTH, AK.
- Coordinates: 60.385911, -154.59083
- Nearby events: https://openairdocs.org/map.md?lat=60.3859&lon=-154.5908&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing: Landing area overshoot](https://openairdocs.org/ntsb-events/380)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed
- Report: Approved by Office Director
- Investigation class: Class 4 - Basic report with no Prelim publish
- NTSB office: Alaska Regional Office
- Parties: FAA
- NTSB case key (mKey): 105871
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC22LA071
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/105871/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=105871
- Page: https://openairdocs.org/ntsb/ANC22LA071

## Probable cause

The pilot's delayed decision to execute a go-around maneuver while landing with a tailwind into a short strip, which resulted in a runway overrun and subsequent loss of control.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Info processing/decision: decision making/judgment](https://openairdocs.org/ntsb-findings/02041520): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Stinson 10A, 1 case](https://openairdocs.org/ntsb-findings/02041520/cases.md?model=8632102), [All aircraft, 3,098 cases](https://openairdocs.org/ntsb-findings/02041520/cases.md)
- [Wind: tailwind](https://openairdocs.org/ntsb-findings/03034015): Environmental issues › Conditions/weather/phenomena · Decision related to condition (probable cause); cases with it: [Stinson 10A, 1 case](https://openairdocs.org/ntsb-findings/03034015/cases.md?model=8632102), [All aircraft, 594 cases](https://openairdocs.org/ntsb-findings/03034015/cases.md)

## Sequence of events

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

- [Landing: Landing area overshoot](https://openairdocs.org/ntsb-events/380) (defining event); cases with it: [Stinson 10A, 1 case](https://openairdocs.org/ntsb-events/380/sequence.md?model=8632102), [All aircraft, 400 cases](https://openairdocs.org/ntsb-events/380/sequence.md)

## Analysis

The pilot reported that he decided to land with a tailwind to avoid landing into the setting sun. The remote site he was landing at was approximately 800 ft long. He said that his touchdown speed was “fast” and when the airplane touched down, it bounced back into the air. He attempted a go-around, but the airplane “did not build speed back up,” at the end of the strip he opted to reduce engine power. The airplane subsequently landed in rough terrain and nosed over, which resulted in substantial damage to the rudder. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

## Aircraft

- Registration: [N5847X](https://openairdocs.org/aircraft/N5847X), registered now, S/N 7896, built 1941 (OpenAirDocs)
- Reported make and model: STINSON 10A
- Registry model: [Stinson 10A](https://openairdocs.org/model/stinson-10a) (registry code 8632102) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 7896
- Year built: 1941
- Airframe hours: 1848
- Engines: LYCOMING O-320 SERIES 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, June 10, 2022
- Departed: TPO, Port Alsworth, AK
- Destination: Same as departure
- Equipment: Handheld GPS

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 23; injuries: none; commercial; airplane ratings: single-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, without waivers/limitations; last flight review June 10, 2022; seat: left; restraint: 3-point; flight hours: 1,317.6 total, 113.2 in this make and model, 1,233.2 as pilot in command, 225.5 in the last 90 days, 75.9 in the last 30 days, 3.4 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 240° at 7 knots
- Visibility: 40 statute miles
- Temperature: 61 °F, dew point 46 °F
- Altimeter: 29.19 inHg
- Observed at: PALJ, 14 nm away
- METAR: PALJ 030250Z 24007KT 40SM SCT060 SCT100 16/08 A2919 RMK LAST EST PASS OPEN NOSPECI

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20220902015229A](https://openairdocs.org/incident/20220902015229A), Sep 2, 2022: Stinson 10A, Port Alsworth, AK, Substantial damage. Pilot ran off the end of an off-airport strip/runway during an attempted go-around resulting in aircraft flipping over.

## Docket (2 files)

The files NTSB released with the investigation on November 7, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=105871. 5.7 MB in all.

- Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 5.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14460881&FileExtension=pdf&FileName=ANC22LA071%206120_Redacted-Rel.pdf
- Photos (item 2, PDF, 3 pages, 143 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14460891&FileExtension=pdf&FileName=Photo%20Array%20ANC22LA071-Rel.pdf

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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