Incident · 2013-03-29

NTSB case ENG13IA020 · EMBRAER ERJ-145 · UNK

What the record says

Event date: 2013-03-29
Event type: Incident
Highest injury level: No injuries
Aircraft: EMBRAER ERJ-145 (N12922)
Operating rule: UNK
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 due to a malfunction of the electrohydraulic servo valve (EHSV) within the nose wheel steering manifold assembly. The reason for the malfunction could not be determined; however, a foreign substance was found between the armature and coil of the EHSV that once removed improved the performance of the unit. It is unknown how the foreign substance was introduced to this location.

Source: NTSB case ENG13IA020

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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