Incident · 2011-08-29

NTSB case ENG11IA047 · EMBRAER EMB145 · Part 121

What the record says

Event date: 2011-08-29
Event type: Incident
Highest injury level: No injuries
Aircraft: EMBRAER EMB145 (N27152)
Operating rule: Part 121
Operator: EXPRESSJET AIRLINES LLC Operator named in NTSB report
Operated by (per NTSB report): EXPRESSJET AIRLINES INC

Probable cause

The uncommanded left deflection of the airplane's nose wheel likely due to seal deterioration and subsequent contamination within the Electrohydraulic Servo Valve (EHSV). Contributing to the incident was the undersized condition of the filter plugs within the EHSV which likely caused the C2 orifice filter seal to extrude and deteriorate.

Source: NTSB case ENG11IA047

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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