Gulfstream Aerospce Corporation Model GVI Airplanes - Landing Gear - Nose Wheel Steering
- Published
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators should familiarize themselves with the affected procedures in the airplane flight manual, particularly the "Before Landing" and "Nose Wheel Steering (NWS) Failure" sections. They must verify the absence of the amber "Steer by Wire Fail" message after landing and use rudder and differential braking if the failure occurs. When workload permits, cycling SSPC #3206 should be performed to restore steering. Additionally, operators are requested to report all nose wheel steering failures to Gulfstream Aerospace Corporation with detailed flight and failure information.
Summary
The Special Airworthiness Information Bulletin SAIB: NM-13-25 is an FAA informational bulletin addressing a nose wheel steering issue on Gulfstream Aerospace Corporation Model GVI airplanes. It informs operators about a potential loss of nose wheel steering function after landing, triggered by a "Steer by Wire Fail" caution message. The bulletin provides details on the failure mode and interim operational guidance.
What changed
This bulletin introduces awareness of a nose wheel steering failure mode on Gulfstream GVI aircraft where the steering actuator reverts to free castor mode after landing, disabling tiller control. It recommends procedural actions to restore steering functionality by cycling the Solid State Power Controller #3206 and advises operators on handling directional control using rudder and differential braking. No mandatory airworthiness directive has been issued at this time.
Why it matters
This information is critical for flight crews and maintenance personnel to recognize and respond to nose wheel steering failures that occur immediately after touchdown, which could complicate directional control during rollout, especially under challenging conditions like crosswinds or narrow runways. Understanding this issue helps operators maintain safe ground handling and avoid potential damage to the nose wheel assembly.
More for Gulfstream GVI
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- EASA AD US-2020-02-18Flight Controls - Airplane Flight Manual - RevisionFeb 14, 2020
- EASA AD US-2018-20-04Flight Controls - Normal and Abnormal Procedures Sections of the Airplane Flight Manual - RevisionsOct 24, 2018
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