A United Parcel Service (UPS) McDonnell Douglas MD-11F operating from Dallas, TX to Chicago, IL reported unreliable speed indications on descent into Rockford Airport on 24 October 2024.
UPS flight 5X753 was inbound from Dallas-Fort Worth International Airport (DFW). During the descent phase into Chicago Rockford International Airport, flight crew reported experiencing unreliable airspeed indications.
UPS 5X753 Dallas-Chicago
According to the online source Aviation Herald, ATC queried the extent of the technical issue with the UPS flight crew. The operating crew reported that other systems on board were intermittent, and they suspected a lightning strike as the cause.
Flight crew continued the descent and approach to Rockford. The aircraft landed without further incident on runway 19 Rockford Airport just under 30 minutes after the initial report.
Flight Details
Flight data shows that the flight 5X753 made an on-time departure from Dallas-Fort Worth International Airport at 2212 local time on 24 October. The flight had proceeded normally, climbing to flight level FL370 for the north-easterly service to Chicago.
Top of descent and initial descent phase had been conducted normally. Data shows that the flight briefly squawked transponder code 7700 at 0443 UTC whilst passing through FL190.
Operating crew then conducted descent and approach procedures to runway 19 Rockford.
The aircraft conducting 5X753 service from Dallas was a McDonnell Douglas MD-11F freighter, registered N251UP. The aircraft is a 29.1 year old converted freighter belonging to the carrier United Parcel Service. It has been an operational service with the operator since its initial conversion to cargo configuration in April 2001.
Brazilian operator VASP originally operated the aircraft in passenger configuration following its initial delivery in November 1995.
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