# NTSB Accident CHI06MA121
> **GENERAL ATOMICS PREDATOR B** · 2006-04-25 · Nogales, AZ, USA · NONE
## Event
- **NTSB number:** CHI06MA121
- **Event ID:** 20060509X00531
- **Type:** Accident
- **Date:** 2006-04-25
- **Location:** Nogales, AZ, USA
- **Coordinates:** 31.566667, -110.941108
## Injuries
- **Highest injury:** NONE
- **Fatal:** 0
- **Serious:** 0
- **Minor:** 0
- **Uninjured:** 1
- **Total aboard:** 1
## Aircraft
- **Make:** GENERAL ATOMICS
- **Model:** PREDATOR B
- **Registration:** UNREG
- **FAR Part:** PUBU
- **Engines:** 1
- **Damage:** SUBS
## Conditions
- **Light:** NITE
- **Weather:** VMC
## Probable cause

The pilot's failure to use checklist procedures when switching operational control from PPO-1 to PPO-2, which resulted in the fuel valve inadvertently being shut off and the subsequent total loss of engine power, and lack of a flight instructor in the GCS, as required by the CBP's approval to allow the pilot to fly the Predator B. Factors associated with the accident were repeated and unresolved console lockups, inadequate maintenance procedures performed by the manufacturer, and the operator's inadequate surveillance of the UAS program.

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*Source: [NTSB CAROL](https://data.ntsb.gov/carol-main-public/basic-search?source=ntsb&type=event&ntsb_number=CHI06MA121) · AI Analytics · CC0 1.0*