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FTW97FA280 · Cessna 150D

25 Jul 1997 · Fort Collins, CO, United States

Cessna 150D · Accident: loss of control in flight during initial climb

From 3V5 to Osage Municipal Airport (D02)

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Event

NTSB case
FTW97FA280
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
0
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

Cessna 150D

Aircraft type
Cessna 150
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
N4228U
Operator
Unknown
Onboard fatalities
Unknown
Route
From 3V5To Osage Municipal Airport (D02), Osage, 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
Initial climb
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 control in flight
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

  • Pilot in command › Airspeed(vs), not obtained/maintained
  • Pilot in command › Preflight planning/preparation, inadequate
  • Pilot in command › Procedures/directives, not followed

Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.

NTSB narrative

During initial climb following takeoff on a cross-country flight, the aircraft failed to attain a sustained climb and impacted in a field approximately 2 miles from the departure end of the runway. Weather conditions at the time were temperature 92 degrees F, wind calm, and the airport elevation was 4,699 feet msl. The aircraft had been modified by STC to a tailwheel configuration. The Owner's Manual in the aircraft was for the wrong year and model. The aircraft was 32 pounds over maximum gross weight. The pilot was using 10 degrees flaps for takeoff. There are no performance charts for the use of flaps for takeoff and in the narrative portion of the Owner's Manual. The manual recommends that flaps not be used for takeoff from high altitude airports on hot days. In addition, the aircraft was out of annual, the pilot had a forged medical certificate, some work on the aircraft had been performed by the pilot and signed off and he did not possess a mechanic license, and the signatures on the spark plugs revealed the aircraft engine was not leaned for optimum performance.

Probable cause

Inadequate preflight planning by loading the aircraft over the maximum certificated gross weight, failure to follow procedures and directives by using flaps for takeoff and failing to properly lean the engine for optimum power, and stalling the aircraft. Factors were: Poor judgement by the pilot in operating the aircraft without a current annual inspection, for forging his medical certificate, and failing to obtain and use the proper Owner's Manual for the aircraft. Also, factors were insufficient requirements for the Owner's Manual by the FAA and inadequate aircraft manual information by the manufacturer.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record FTW97FA280
Event ID
20001208X08358
Case number
FTW97FA280
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. 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: 80720d66ddcc035dcb28f959480d78384c66e0b2620e8999757474e3af621989; retrieved 2026-09-21T11:57:09.446Z.