# Incident 20250704014089I: Airbus Industrie A320-232, Orlando, FL, July 4, 2025

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: July 4, 2025, 10:00 local time
- Place: Orlando, FL
- Airport: Orlando International Airport
- Damage: No damage
- Phase of flight: Taxi
- Operating rules: Air carrier (Part 121)
- Operator: YENA
- Location: 28.4294° N, 81.3090° W: Placed by OpenAirDocs at ORLANDO INTL (MCO), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=28.4294&lon=-81.3090&mi=10
- Aircraft: N521JB, registered now (https://openairdocs.org/aircraft/N521JB) (OpenAirDocs)
- Registry model: Airbus Industrie A320-232 (registry code 3930326, https://openairdocs.org/model/airbus-industrie-a320-232) (OpenAirDocs)
- Registry engine: IAE V2500SERIES (registry code 34601, https://openairdocs.org/engine/iae-v2500series) (OpenAirDocs)
- Reported make and model: AIRBUS INDUSTRIE A320-232
- Reported engine: IAE V2500SERIES
- People aboard: 0
- Fatal injuries: 0
- Other injuries: 0
- Pilot certificates: Airline transport, commercial pilot
- Pilot flight hours: 12,703 total, 8,702 in this make and model, 137 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20250704014089I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ON JULY 4, 2025, ^PRIVACY DATA OMITTED^ WHILE TAXING OUT FOR DEPARTURE AT ORLANDO INTERNATIONAL AIRPORT (MCO) ECOUNTERED MULIPLE YELLOW HYRAULIC SYSTEM ECAM (ELECTRONIC CENTRALIZED AIRCRAFT MONITOR) MESSAGES. THE CREW STOPPED THE AIRCRAFT WITH THE PARKING BRAKE SET. THE PRIMARY CAUSE OF THE MESSAGES WAS A YELLOW HYRAULIC SYSTEM FLUID LEAK FROM THE BRAKE SELECTOR VALVE. THIS LEAK ESSENTIALLY CAUSED A COMPLETE FAILURE OF THE YELLOW HYRAULIC SYSTEM WHICH THE PARKING BRAKE DERIVES ITS HYRAULIC PRESSURE FOR PROPER OPERATION. DURING THE TIME THE AIRCRAFT WAS STOPPED, THE BRAKE ACCUMULATOR PRESSURE BLED DOWN CAUSING THE BRAKES TO SLOWLY RELEASE THE BRAKE PRESSURE CAUSING THE AIRCRAFT TO BEGIN MOVING. THE CREW, BELIEVING THEY NOW HAD A TOTAL LOSS OF BRAKING, EXECUTED THE MEMORY ITEMS ON THE LOSS OF BRAKING CHECKLIST. ONE OF THE MEMORY ITEMS ON THE CHECKLIST HAS THE CREW MOVE THE ANTI SKID NOSE WHEEL SWITCH TO THE OFF POSITION. THIS STEP IN THE PROCEDURE REMOVES THE NORMAL GREEN SYSTEM HYDRAULICS FROM THE BRAKING SYSTEM AND TRANSFERS BRAKING TO THE ALTERNATE YELLOW SYSTEM.  AT THE TIME, THE YELLOW SYSTEM WAS INOP DUE TO FLUID LOSS FROM THE LEAK.  AS THE AIRCRAFT CONTINUED MOVING WITHOUT BRAKES, THE CREW SHUT DOWN BOTH ENGINES IN AN ATTEMPT TO ARREST THE AIRCRAFT MOVEMENT. THE AIRCRAFT CONTINUED MOVING WITH THE NOSE WHEEL GOING INTO THE GRASS. BECAUSE OF RECENT RAINS, THE NOSEWHEEL SUNK INTO THE SOFT DIRT AND THE AIRCRAFT STOPPED WITH THE MAIN LANDING GEAR STILL ON THE PAVEMENT.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.