WPR19WA036 · Air Tractor 401B
Air Tractor 401B · Accident: loss of engine power (total) while maneuvering
Event
- NTSB case
- WPR19WA036
- 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
- Unknown · led by another country; figures from NTSB notifications
- API-reported fatalities
- 0 · 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
- Not recorded
Air Tractor 401B
- Aircraft type
- Air Tractor 401
- 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
- 5N-BTV
- Operator
- Unknown
- 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
- Non-U.S., Non-Commercial
- 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 · low-altitude flying
- Defining eventThe 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 (total)
- 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
No findings designated as a cause are recorded in the NTSB data yet.
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
On October 4, 2018, about 0815 coordinated universal time, an Air Tractor AT-401B airplane, 5N-BTV, executed a forced landing following a loss of engine power near Rukubi, Nigeria. The pilot sustained minor injuries and the airplane was substantially damaged. The airplane was operated under the pertinent civil regulations for the government of Nigeria.
The Nigerian Accident Investigation Bureau (AIB) is investigating the incident. As the state of manufacture of the airplane, the NTSB has designated a US accredited representative to assist the AIB in its investigation.
All inquiries concerning this incident should be directed to:
AIB Safety House
Murtala Muhammed International Airport
P.M.B. 016
Ikeja, Lagos
Nigeria
http://www.aib.gov.ng/
Verbatim NTSB factual narrative from the NTSB dataset
Sources
NTSB record WPR19WA036
- Event ID
- 20181204X10727
- Case number
- WPR19WA036
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
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.
- No bulk values were replaced by the NTSB case API.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 91f953e1c808fe3ff300d680c4968d039c947357a6cd567f7432486ef7349da3; retrieved 2026-09-16T08:28:25.025Z.