# NTSB WPR26LA204: Air Tractor AT-602, N5111A, Robbins, CA, May 30, 2026

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Class 3 · Limited · Preliminary report
- Date: May 30, 2026, 09:00 local (16:00 UTC)
- Place: Robbins, CA
- Coordinates: 38.877441, -121.69006
- Nearby events: https://openairdocs.org/map.md?lat=38.8774&lon=-121.6901&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Defining event: [Enroute-cruise: Loss of engine power (total)](https://openairdocs.org/ntsb-events/341)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Investigation ongoing
- Investigation class: Class 3
- NTSB office: Western Pacific Region
- Parties: Federal Aviation Administration
- NTSB case key (mKey): 203102
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR26LA204
- NTSB preliminary report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/203102/pdf
- Page: https://openairdocs.org/ntsb/WPR26LA204

## Preliminary report

On May 30, 2026, about 0900 Pacific daylight time, an Air Tractor AT-602, N5111A, was substantially damaged when it was involved in an accident near Robbins, California. The pilot sustained minor injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 137 Agricultural Aircraft Operations. The pilot reported that he was on an aerial seeding flight and that about 45 minutes after refueling he maneuvered toward a private airstrip to replenish his load. He added that the engine lost all power during a brief climb prior to landing at the airstrip when he was about 300 feet above ground level. After the pilot heard the engine spool down, the airplane started to sink. Subsequently, the pilot configured the airplane for best glide and executed a forced landing in a paddy field. The airplane nosed over shortly after touchdown and came to rest inverted, which resulted in substantial damage to the empennage. The airplane and engine were recovered to a secure facility for further examination.

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Enroute-cruise: Loss of engine power (total)](https://openairdocs.org/ntsb-events/341) (defining event); cases with it: [Air Tractor AT-602, 11 cases](https://openairdocs.org/ntsb-events/341/sequence.md?model=0390309), [All aircraft, 3,820 cases](https://openairdocs.org/ntsb-events/341/sequence.md)

## Aircraft

- Registration: [N5111A](https://openairdocs.org/aircraft/N5111A), registered now, S/N 602-0427, built 1997 (OpenAirDocs)
- Reported make and model: AIR TRACTOR INC AT-602
- Registry model: [Air Tractor AT-602](https://openairdocs.org/model/air-tractor-at-602) (registry code 0390309) (OpenAirDocs)
- Registry engine: [Pratt & Whitney Canada PT6A-66 series](https://openairdocs.org/engine/pratt-whitney-canada-pt6a-66-series) (registry code 52118, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: 602-0427
- Year built: 1997
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Basin Aviation Inc
- Registered owner: Basin Aviation Inc
- Departed: Robbins, CA
- Airport: NA

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 6 knots
- Visibility: 10 statute miles
- Temperature: 63 °F, dew point 54 °F
- Altimeter: 30.10 inHg
- Observed at: KSMF, 11 nm away
- METAR: METAR KSMF 301553Z 15006KT 10SM FEW250 17/12 A3010 RMK AO2 SLP191 T01670117 $

## Other investigations on N5111A (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB SEA00LA192](https://openairdocs.org/ntsb/SEA00LA192), Sep 27, 2000: Air Tractor AT-602 (N5111A), Columbia River, WA, substantial damage. Probable cause: Clearance from a transmission power line was not maintained. The power line was a factor.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.