Occ · 2023-04-23

NTSB case WPR23LA167 · GATES LEARJET CORP. 35A · Part 91

What the record says

Event date: 2023-04-23
Event type: Occ
Highest injury level: No injuries
Aircraft: GATES LEARJET CORP. 35A (N135SH)
Operating rule: Part 91
Operator: MEDWAY AIR AMBULANCE LLC Operator named in NTSB report
Operated by (per NTSB report): Medway Air Ambulance

Probable cause

The fueler’s inadvertent addition of diesel exhaust fluid (DEF) to the FSII reservoir on the fuel truck, and its subsequent mixture with the JET A that was used to fuel the airplane, resulting in a total loss of power to the right engine and a partial loss of power to the left engine.

Source: NTSB case WPR23LA167

Flight crew

No flight-crew details recorded in the NTSB accident database for this event.

Facts as the NTSB records them — GroundCheck adds no judgement. Preliminary records may be revised as the investigation proceeds.

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