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CHI03LA199 · Aviat A-1B

5 Jul 2003 · Okobojo, SD, United States

Aviat A-1B · Accident: hard landing

From Pierre Regional Airport (PIR) to Bismarck Municipal Airport (BIS)

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Event

NTSB case
CHI03LA199
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

Aviat A-1B

Aircraft type
Aviat A-1
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
N700KY
Operator
Larry Teuber
Onboard fatalities
Unknown
Route
From Pierre Regional Airport (PIR), Pierre, SDTo Bismarck Municipal Airport (BIS), Bismarck, ND
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
Landing
First occurrenceThe 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
Hard landing
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

  • Landing gear, float assembly › Failure

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

NTSB narrative

The airplane sustained substantial damage when the landing gear strut on the left front float failed. According to the pilot, when the airplane touched down in the water he heard a crack from the left front of the airplane. The pilot reported that as the airplane slowed it began to lean to the left. The pilot stated that a boater helped him pull the airplane to the shore. An examination of the landing gear and strut revealed that "no evidence of a pre-existing metal problem."

Probable cause

The failure of the float strut during a water landing.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record CHI03LA199
Event ID
20030710X01065
Case number
CHI03LA199
Dataset
historical-pre2008
Source SHA-256
89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
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: investigation status, coordinates. Values present in the bulk record are kept.
  • The date is the local date, which is the same as the UTC date the NTSB stores.
  • API snapshot SHA-256: 2135cc4b3fd69665ac2f7298f23826e4064baebd7ea1c695252fb85c9dae3ba9; retrieved 2026-09-22T09:03:19.149Z.