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ATL90DMG01 · Waldron FLYBABY

7 Jan 1990 · Troy, NC, United States

Waldron FLYBABY · Accident: loss of engine power while maneuvering

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Event

NTSB case
ATL90DMG01
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
1 · 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

Waldron FLYBABY

Aircraft type
Waldron FLYBABY
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
N91089
Onboard fatalities
Unknown
Route
From not recordedTo not recorded
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
Maneuvering
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
Stall
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Destroyed

Cause areas

  • Fuel system, carburetor › Ice
  • Pilot in command › Airspeed, not maintained
  • Pilot in command › Impairment(alcohol)
  • Pilot in command › Judgment, poor
  • Pilot in command › Overconfidence in personal ability
  • Pilot in command › Powerplant controls, improper use of
  • Pilot in command › Qualification
  • Pilot in command › Stall, inadvertent

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

NTSB narrative

A NON-RATED PERSON (WITH NO FAA MEDICAL OR PLT CERTIFICATE) ELECTED TO FLY THE HOME-BUILT ACFT. REPORTEDLY, THE ENG BEGAN TO 'MISFIRE' WHEN THE ACFT WAS OVER THE ARPT AT ABOUT 1000' AGL. THE PLT ATTEMPTED TO LAND; HOWEVER, THE ACFT SUBSEQUENTLY CRASHED IN A STEEP DSCNT NEAR THE 1600' RWY. NO PREIMPACT PART FAILURE OF THE ACFT WAS FOUND. THE TEMP & DEW POINT WERE 44 & 36 DEG, RESPECTIVELY. ACCORDING TO CARB ICING CHARTS, CONDITIONS WOULD HAVE BEEN CONDUCIVE TO SERIOUS CARB ICING. NO RECORD WAS FOUND THAT THE PLT HAD RCVD PLT TRAINING, THOUGH HE HAD REPORTEDLY FLOWN ULTRALIGHT CRAFT. TOXICOLOGY CHECKS SHOWED HE HAD A (BLOOD)-ALCOHOL LVL OF 0.07O%, & A URINE-ALCOHOL LVL OF 0.145% (145 MG/DL).

Probable cause

POOR JUDGEMENT OF THE NON-RATED PILOT, DUE TO IMPAIRMENT FROM CONSUMPTION OF ALCOHOL, HIS LACK OF TRAINING/QUALIFICATION, HIS IMPROPER USE OF THE ENGINE CONTROLS WHICH RESULTED IN LOSS OF ENGINE POWER FROM PROBABLE CARBURETOR ICE, AND HIS FAILURE TO MAINTAIN SUFFICIENT AIRSPEED WHICH RESULTED IN AN INADVERTENT STALL AND SUBSEQUENT COLLISION WITH THE TERRAIN.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record ATL90DMG01
Event ID
20001212X22361
Case number
ATL90DMG01
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: 362bf1b92bd43a3010ae5a5bac40646ec7246a00dba81e42d3ad6adabe51fdce; retrieved 2026-09-21T03:02:53.982Z.