Boeing 747 - 400 incident near Taoyuan, Tw, March 25, 2012
On March 25, 2012 at about 2:44 am local time, a Boeing 747 - 400, registered B16411, was involved in an incident near Taoyuan (Taoyuan International Airport). No one was hurt; 383 people were on board or involved. The weather was conditions the NTSB did not record.
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this incident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- March 25, 2012 · about 2:44 am local time
- Place
- Taoyuan, Taiwan · Taoyuan International Airport
- Type
- Incident
- Injuries
- No one was hurt; 383 people were on board or involved.
- Weather
- conditions the NTSB did not record
- Aircraft
- Boeing 747 - 400 · all 747 - 400s on the register
- Registration
- B16411 · no longer on the register · serial 29111
- Damage
- Not recorded
- Flight
- Flight
The NTSB's narrative preliminary · quoted from the NTSB record
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.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
The aircraft
- Landing gear: retractable
- Engine 1: (turbofan); 0 hours total
- Engine 2: (turbofan); 0 hours total
- Engine 3: (turbofan); 0 hours total
- Engine 4: (turbofan); 0 hours total
The flight
- Departed from: RCTP Taoyuan at 2:44 am
- Destination: ZSPD Shanghai Pudong
Weather at the time
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Cabi | 14 | |||
| Flight crew | 2 | |||
| Passengers | 367 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.