Incident Overview
Date: Sunday 29 March 2009
Aircraft Type: Cessna 550 Citation II
Owner/operator: Fritzi Jet LLC
Registration Number: N44FR
Location: Salt Lake City International Airport, UT (SLC) –
ÿ United States of America
Phase of Flight: Landing
Status: Substantial, repaired
Casualties: Fatalities: 0 / Occupants: 3
Component Affected: Right Main Landing Gear Hydraulic Actuator StrutRight Main Landing Gear Hydraulic Actuator Strut
Investigating Agency: NTSBNTSB
Category: Accident
A pilot executed a full-stop landing, confirming gear-down lights. During the landing roll, the right main landing gear actuator shaft retracted into its housing, causing the landing gear to retract into the wheel well. The airplane subsequently departed the runway and impacted the adjacent runway lights. Investigation revealed an uncommanded retraction of the actuator shaft, leading to the gear retraction.A pilot executed a full-stop landing, confirming gear-down lights. During the landing roll, the right main landing gear actuator shaft retracted into its housing, causing the landing gear to retract into the wheel well. The airplane subsequently departed the runway and impacted the adjacent runway lights. Investigation revealed an uncommanded retraction of the actuator shaft, leading to the gear retraction.
Description
The pilot was executing a full-stop landing, prior to which he had confirmed the illumination of the three green “gear-down” lights. Although the touchdown was uneventful, during the landing roll the right main landing gear actuator shaft retracted into its housing, resulting in the retraction of the right main landing gear into its wheel well. The airplane then departed the runway and impacted the adjacent runway lights. A series of postaccident inspections and tests were unable to determine what anomaly or malfunction initiated the retraction of the actuator shaft. Probable Cause: The uncommanded retraction of the right main landing gear hydraulic actuator strut for undetermined reasons.
Primary Cause
Uncommanded retraction of the right main landing gear hydraulic actuator strut for undetermined reasons.Uncommanded retraction of the right main landing gear hydraulic actuator strut for undetermined reasons.Share on:
