ASN Wikibase Occurrence # 370303
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| Date: | Tuesday 20 December 2005 |
| Time: | 20:41 LT |
| Type: |  Boeing 717-2BL |
| Owner/operator: | Midwest Airlines |
| Registration: | N924ME |
| MSN: | 55190/5149 |
| Total airframe hrs: | 355 hours |
| Engine model: | Rolls-Royce BR700-715A1 |
| Fatalities: | Fatalities: 0 / Occupants: 91 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Boston-Logan International Airport, MA (BOS/KBOS) -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Passenger - Scheduled |
| Departure airport: | Boston-Logan International Airport, MA (BOS/KBOS) |
| Milwaukee-General Mitchell Airport, WI (MKE/KMKE) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During takeoff, air traffic controllers observed sparks coming from the rear of the Boeing 717-200, and shortly thereafter, the pilot reported a problem with the right main landing gear and gear door, with the landing gear in the retracted position. The airplane circled for about an hour and a half to burn fuel, and the captain subsequently performed an uneventful landing. Examination of the airplane revealed that the number 4 wheel bearing failed, and the wheel race welded to the axle. As the wheel continued to rotate, the remaining races and bearings fragmented and separated from the wheel. Examination of the remaining three wheel hubs revealed the presence of water. A similar incident occurred approximately 10 months prior involving another Boeing 717-200; however, due to the catastrophic damage to the tire and bearings, it could not be determined whether or not water was present. As a result of the second incident, the manufacturer incorporated a hubcap gasket to prevent moisture from becoming trapped in the wheels.
Probable Cause: Water dilution of the grease, which resulted in the failure of the number 4 wheel bearing.
Accident investigation:
 |
|
Sources:
NTSB NYC06IA044
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-Mar-2024 09:15 | ASN Update Bot | Added |
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