Full Narrative
On March 25, 2012, at 1044 Taipei local time, a Boeing 747-400 airplane, registration number B-16411, operating as EVA Airways Corporation passenger flight BR702, encountered a left outflow valve malfunction and abnormal cabin altitude during enroute climb. The aircraft returned to Taoyuan International Airport without further incident.
The Aviation Safety Council (ASC) of Taiwan investigated the incident. All inquiries concerning this accident should be directed to the ASC at:
Aviation Safety Council
11th Floor, 200, Section 3
Beixin Road, Xindian District
New Taipei City 231, Taiwan (R.O.C.)
The final report number is ASC-AOR-13-03-001. The report (in Chinese only) can be downloaded at the ASC website, www.asc.gov.tw.
About This NTSB Record
This aviation event was investigated by the National Transportation Safety Board (NTSB). NTSB investigates all U.S. civil aviation accidents to determine probable cause and issue safety recommendations to prevent future accidents.
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