ASN Wikibase Occurrence # 370321
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| Date: | Friday 10 June 2005 |
| Time: | 11:25 LT |
| Type: |  Avro RJ85 |
| Owner/operator: | Northwest Airlines |
| Registration: | N530XJ |
| MSN: | E2364 |
| Total airframe hrs: | 11432 hours |
| Engine model: | Allied Signal LF507-1F |
| Fatalities: | Fatalities: 0 / Occupants: 60 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Oklahoma City, OK -
 United States of America
|
| Phase: | Landing |
| Nature: | Passenger - Scheduled |
| Departure airport: | Memphis International Airport, TN (MEM/KMEM) |
| Oklahoma City-Will Rogers Airport, OK (OKC/KOKC) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
During the landing rollout, a high-pressure hydraulic line ruptured and penetrated the interior wall of the cabin, and subsequently sprayed hydraulic fluid into the cabin and passengers. The passengers evacuated with minimal injuries. Examination of the airplane revealed that one of the three, 10-foot-long hydraulic lines that ran vertically along the circumference of the fuselage had failed at a shallow bend that was designed into the line when it was manufactured. A metallurgical examination of the line revealed that it failed due to a longitudinal defect that measured .0012-inches in depth on the inner diameter surface near a weld that occurred during the manufacturing process. This was the second known failure of this same-type hydraulic line. However, the first failure had a larger defect and the manufacturer's inspection specifications indicated that it should have been rejected during the testing process. According to the manufacturer, if a defect was measured below .002-inches in depth, then the line was considered acceptable provided that the defect could be removed and the line continued to meet wall thickness and ovality requirements.
Probable Cause: Failure of a high pressure hydraulic line from fatigue as a result of a manufacturing defect.
Accident investigation:
 |
|
Sources:
NTSB DFW05IA156
History of this aircraft
Other occurrences involving this aircraft
| 29 March 2019 | EI-RJR | Air France / CityJet | 0 | near Turin |  |
min |
| Windscreen cracks or failure | ||||||
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-Mar-2024 09:28 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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