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LAX91LA102 · Curtiss-Wright E-4000

17 Feb 1991 · Watsonville, CA, United States

Curtiss-Wright E-4000 · Accident: fire while taxiing

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Event

NTSB case
LAX91LA102
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

Curtiss-Wright E-4000

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
N9048
Operator
Paul King
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
Taxi · from runway
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
Fire
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

  • Acft/equip inadequate, equipment interference
  • Unknown › Acft/equip, inadequate design

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

NTSB narrative

THE PILOT LANDED THE AIRPLANE AND TAXIED OFF THE RUNWAY WHEN SMOKE EMANATED FROM THE LOWER RIGHT FRONT AREA BENEATH THE ELECTRICAL JUNCTION BOX. THE PILOT STOPPED THE AIRPLANE AND HE AND THE PASSENGERS IMMEDIATELY EXITED THE AIRPLANE. MOMENTS LATER FLAMES CONSUMED THE FABRIC COVERED AIRPLANE. EXAMINATION OF THE WRECKAGE DISCLOSED THAT THE STAINLESS STEEL TAILWHEEL ASSY CABLE CONTAINED CONSIDERABLE SLACK WHICH ALLOWED IT TO CONTACT THE ELECTRICAL JUNCTION BOX DURING A TURN. THIS INADEQUATE DESIGN AND ROUTING CAUSED IT TO FUSE AND SHORT THE ELECTRICAL SYSTEM. THE SLACK IS NOT NOTICEABLE WHEN THE TAILWHEEL IS NOT TURNED.

Probable cause

THE INADEQUATE DESIGN AND LENGTH OF THE TAILWHEEL ASSEMBLY CABLE.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record LAX91LA102
Event ID
20001212X16474
Case number
LAX91LA102
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: 9ecb00c7ec5fa57ead4ce66923d973fa8fe2af37dd639513709280afe964342d; retrieved 2026-09-23T04:44:55.558Z.