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Accidents · NTSB DCA11WA088 · Final report

Boeing 737 incident near Pemir, Lv, July 26, 2011

On July 26, 2011 at about 4:35 pm local time, a Boeing 737, registered YLBBR, was involved in an incident during enroute near Pemir. It was flown under non-U.S. commercial rules. No one was hurt; 144 people were on board or involved.

The NTSB's probable cause their words, unchanged

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Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
July 26, 2011 · about 4:35 pm local time
Place
Pemir, Latvia
Type
Incident
Injuries
No one was hurt; 144 people were on board or involved.
Weather
not recorded
Aircraft
Boeing 737 300 · all 737s on the register
Registration
YLBBR · no longer on the register
Damage
Not recorded
Flight
Flight · non-U.S. commercial rules

The NTSB's narrative final · quoted from the NTSB record

On July 26, 2011, a Boeing 737-300, Latvian registration YL-BBR, operated by Air Baltic, experienced a depressurization while enroute from Antalya, Turkey, to Riga, Latvia. There were no injuries to the 6 crew and 138 passengers. The incident is being investigated by the Transport Accident Incident Investigation Bureau of the Republic of Latvia, www.taiib.gov.lv

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

What happened, in order

  1. Pressure/environ sys malf/fail during enroute defining event

The aircraft

  • Landing gear: retractable

The flight

  • Departed from: LTAI Antalya
  • Destination: EVRA Riga
  • Flight plan: not recorded

Weather at the time

  • Temperature: 0°F (-18°C), dew point 0°F (-18°C)

Injuries

FatalSeriousMinorNone
Cabi4
Flight crew2
Passengers138

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.