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Accidents · NTSB WPR24LA030 · Final report

Arrow Falcon Exporters UH-1H accident near Firebaugh, California, November 4, 2023

On November 4, 2023 at about 7:00 pm local time, a 1966 Arrow Falcon Exporters UH-1H (helicopter), registered N3053Q, was substantially damaged in an accident during prior to flight near Firebaugh, California (Firebaugh airport). It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

An on-ground fuel fire for reasons that could not be determined due to extensive thermal damage.

Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.

What the record shows

Date
November 4, 2023 · about 7:00 pm local time · cases in 2023
Place
Firebaugh, California · Firebaugh · cases near this airport · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Arrow Falcon Exporters UH-1H, built 1966
Registration
N3053Q · registry record · serial 66-1104
Damage
Substantial damage
Flight
Aerial application (crop spraying) flight · agricultural flying rules (Part 137)

The NTSB's narrative final · quoted from the NTSB record

The helicopter caught fire shortly after the first start of the day; the pilot shut down the helicopter, exited, and called 911. The fire originated on the left side of the helicopter where the fuel shutoff valve is located, on the airframe side of the firewall. The helicopter sustained extensive thermal damage in the cargo area. The fuel shutoff valve and associated fuel lines were destroyed. Maintenance personnel stated that they thought one of the inlet fuel lines had come loose and sprayed fuel, which ignited and started the fire; however, no such evidence to support or disprove this theory survived the fire. The last annual inspection was signed off about three and a half months before the accident. Maintenance personnel checked the fuel lines on the airframe side to the fuel shutoff valve with no issues noted in the maintenance log.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Fire/smoke (non-impact) during prior to flight defining event

The NTSB's findings

  • Not determined › Not determined › (general) › (general) › Unknown/Not determined
  • Aircraft › Fluids/misc hardware › Fluids › Fuel › Not specified other cases naming the fuel system

Pilot

  • Certificate: commercial pilot
  • Ratings: instrument: helicopter; rotorcraft: helicopter
  • Flight time: 0 hours in all; 0 in this make and model
  • Medical certificate: Class 2 (without waivers/limitations)
  • Seat: left
  • Injury: no injuries

The aircraft

  • Airframe total time: 11,495.4 hours
  • Last inspection: 100-hour inspection, September 14, 2023; 70.2 hours since
  • Seats: 15
  • Landing gear: fixed
  • Engine: Honeywell T-53 (turboshaft); 1,385 hours total
  • Fire on the ground
  • Operator: West Valley Aviation INC

Weather at the time

  • Light: daylight
  • Wind: from 150° at 4 knots
  • Visibility: 9 statute miles
  • Sky: clear
  • Temperature: 73°F (23°C), dew point 43°F (6°C)
  • Altimeter: 30.11 inHg
  • Observation at 11:53 am from KMAE, 19 miles away

Weather report (METAR): KMAE 041853Z AUTO 15004KT 9SM CLR 23/06 A3011 RMK AO2 SLP195 T02280061

Injuries

FatalSeriousMinorNone
Flight crew1

Photographs from the investigation 4 pictures from the NTSB's docket, as the NTSB released them

The NTSB's photographs with the NTSB's captions, at screen size. Open a picture to see it full size or to report one that should not be shown.

Documents from the investigation the NTSB's docket: the evidence folder behind the report

8 documents, released by the NTSB on November 5, 2025. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.

The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.

Connections how this case links to the rest of the register

Aircraft
Place

The whole map of how records connect · these connections as data: /graph/accident/WPR24LA030.json.

The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.