Boeing 737 incident near Hamamatsu City, Jp, September 6, 2011
On September 6, 2011 at about 1:50 pm local time, a Boeing 737, registered JA16AN, was involved in an incident near Hamamatsu City. It was flown under foreign airline rules (Part 129). 2 people had minor injuries; 115 others were unhurt.
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
- September 6, 2011 · about 1:50 pm local time
- Place
- Hamamatsu City, Japan
- Type
- Incident
- Injuries
- 2 people had minor injuries; 115 others were unhurt.
- Weather
- not recorded
- Aircraft
- Boeing 737 781 · all 737s on the register
- Registration
- JA16AN · no longer on the register
- Damage
- Not recorded
- Flight
- Flight · foreign airline rules (Part 129)
The NTSB's narrative preliminary · quoted from the NTSB record
On September 6, 2011, at 22:50 local time (13:50 UTC), a Boeing 737-700, registration JA16AN, operated by Air Nippon Co., Ltd., entered an unusual attitude and lost altitude about 43km south of Hamamatsu City, Shizuoka Prefecture, Japan, as the aircraft was in cruise at an altitude of about 41,000 feet. The aircraft recovered and landed at Tokyo International Airport, Tokyo, Japan. There was no damage to the aircraft, and 2 of the 117 persons on board the aircraft sustained minor injuries. The incident is being investigated by the Japan Transport Safety Board (JTSB). The NTSB has designated a U.S. Accredited Representative as the state of manufacture of the aircraft under the provisions of ICAO Annex 13. All inquiries should be directed to the JTSB at the following: Japan Transport Safety Board Ministry of Land, Infrastructure, Transport and Tourism Kasumigaseki 2-1-2, Chiyoda-ku Tokyo 100-8918 Japan website: http://www.mlit.go.jp/jtsb/english.html
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: fixed
Weather at the time
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Cabi | 2 | 1 | ||
| Flight crew | 2 | |||
| Passengers | 112 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The NTSB has not released the docket for this case yet. The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), is usually released when the investigation is nearly complete, and the list here is refreshed when it appears. Check 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.