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CHI07LA062 · Hallburg Amphibian S21D

2 Feb 2007 · Grinnell, IA, United States

Hallburg Amphibian S21D · Accident: loss of engine power en route

From North Platte Regional Airport Lee Bird Field (LBF) to Iowa City Municipal Airport (IOW)

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Event

NTSB case
CHI07LA062
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
2 · 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

Hallburg Amphibian S21D

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
N41RH
Onboard fatalities
Unknown
Route
From North Platte Regional Airport Lee Bird Field (LBF), North Platte, NETo Iowa City Municipal Airport (IOW), Iowa City, IA
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
En route · cruise
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
Loss of engine power
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
Fuel exhaustion
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

  • Fluid, fuel › Exhaustion
  • Pilot in command › Preflight planning/preparation, inadequate

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 was recently purchased and was being ferried to the new owner when it impacted terrain. A witness reported seeing the airplane flying at a low altitude when the engine lost power. The airplane impacted a snow-covered agricultural field and sustained damage to the airplane structure leaving a debris field approximately 200 feet in length. Examination of the airplane revealed no usable fuel aboard the airplane. A tailwind prevailed at the time of the accident and the direction of the forced landing was perpendicular to the airplane's flight path. The engine driven fuel pump was tested within test specifications. The examination of the airframe and engine revealed no anomalies that would have precluded normal operation.

Probable cause

The inadequate preflight planning/preparation by the pilot in command and the fuel exhaustion during cruise flight. An additional cause was the inadequate forced landing procedure. A contributing factor was the tailwind.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record CHI07LA062
Event ID
20070208X00158
Case number
CHI07LA062
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: 9641e6ac18b72536a3ec8eede63eec80ea3189f5db2fc0dcc91d63c6b3e55c92; retrieved 2026-09-20T16:52:52.866Z.