FLIGHT FINDINGSAVIATION OCCURRENCE MAP
Back to map

ANC08LA075 · Piper PA-18

21 Jun 2008 · Skwentna, AK, United States

Piper PA-18 · Accident: runway excursion during takeoff

From Skwentna, AK to Merrill Field (PAMR)

Report a problem

Event

NTSB case
ANC08LA075
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
API-reported fatalities
0 · all aircraft and ground
Ground fatalities
Unknown
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

Piper PA-18

Aircraft type
Piper PA-18
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N5408Y
Onboard fatalities
Unknown
Route
From Skwentna, AKTo Merrill Field (PAMR), Anchorage, AK
Aircraft age
Not recorded
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 91: General Aviation
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Takeoff
Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Runway excursion
Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
Tree(s)
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Substantial

Cause areas

  • Aircraft › Aircraft oper/perf/capability
  • Personnel issues › Task performance

Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.

NTSB narrative

The pilot was departing from a remote airstrip that was about 2,000 feet long, and about 40 feet wide. He indicated that the center of the airstrip was gravel, with 8 inch-high grass along the edges. He said that during the takeoff roll and after the tailwheel came up, the airplane pulled to the right, possibly due to the right main landing gear encountering the grass edge. The airplane lifted off to about 15 feet while drifting to the right, and the right wingtip struck trees that were along the edge of the airstrip.

Probable cause

The pilot's failure to maintain directional control during the takeoff roll and liftoff, which resulted in a collision with trees and the ground.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record ANC08LA075
Event ID
20080922X01513
Case number
ANC08LA075
Dataset
full-current
Source SHA-256
5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: local date, investigation status, coordinates. Values present in the bulk record are kept.
  • The date is the local date; the NTSB stores the UTC date 2008-06-22.
  • API snapshot SHA-256: 19afd7d8b01650fdf66e666aae74846bf52c15fa595d1e65b25fb255827c47b5; retrieved 2026-09-15T10:15:35.294Z.