# Incident 20051214033569I: Boeing 737522, Chicago, IL, December 14, 2005

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: December 14, 2005, 11:43 local time
- Place: Chicago, IL
- Airport: Chicago-O Hare International
- Damage: Minor damage
- Phase of flight: Ground Taxi, Other Airplane
- Operating rules: Air carrier (Part 121)
- Operator: UALA
- Location: 41.9769° N, 87.9081° W: Placed by OpenAirDocs at CHICAGO O'HARE INTL (ORD), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.9769&lon=-87.9081&mi=10
- Aircraft: N925UA, a cancelled registration (https://openairdocs.org/deregistered/N925UA-2013-03-21) (OpenAirDocs)
- Registry model: Boeing 737-522 (registry code 138449F, https://openairdocs.org/model/boeing-737-522) (OpenAirDocs)
- Registry engine: CFM International CFM56 series (registry code 13802, https://openairdocs.org/engine/cfm-international-cfm56-series) (OpenAirDocs)
- Reported make and model: BOEING 737522
- Reported engine: GE CFM56*
- People aboard: 61
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20051214033569I

## Narrative

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

(-23) AFTER INITIATION OF T/O ROLL CHICAGO O'HARE TOWER ADVISED UAL #394 THAT ONE (1) NOSE GEAR WAS MISSING, THE AIRCRAFT ABORTED T/O AT APPROXIMATELY 60 KNOTS. THE FLIGHT CREW WRITE-UP WAS: TIRE CAME OFF WHEN FINISHING TURN ONTO RUNWAY 9R. HEARD LOUD THUMP. ABORTED TAKEOFF BELOW 60 KNOTS WITH NO ABNORMAL OR EXCESSIVE SIDE LOADS. MAINTENANCE INSPECTION REVEALED THE LEFT NOSE WHEEL HAD SEPARATED FROM THE AIRCRAFT'S NLG INNER CYLINDER. FURTHER INVESTIGATION REVEALED TWO PREVIOUSLY UNDETECTED CRACKS IN THE LEFT SIDE AXLE OF THE NLG INNER STRUT. NLG REMOVED AND FORWARDED TO UALA'S QUALITY AND ENGINEERING FOR EVALUATION. UNITED AIRLINES FAA CERTIFICATE MANAGEMENT OFFICE IS FOLLOWING INVESTIGATION.

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.