# NTSB DCA17WA222: Boeing 737, Bangkok, Thailand, September 19, 2017

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Foreign investigation
- Date: September 19, 2017
- Place: Bangkok, Thailand
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Defining event: [Initial climb: Pressure/environ sys malf/fail](https://openairdocs.org/ntsb-events/331)
- Highest injury: No injuries
- Status: Led by another country's authority
- NTSB office: Major Investigations Division
- Lead agency: Other
- NTSB case key (mKey): 96247
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA17WA222
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/96247/pdf
- Page: https://openairdocs.org/ntsb/DCA17WA222

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Initial climb: Pressure/environ sys malf/fail](https://openairdocs.org/ntsb-events/331) (defining event); cases with it: [All aircraft, 116 cases](https://openairdocs.org/ntsb-events/331/sequence.md)

## Factual narrative

The AAIB of Thailand has notified the NTSB of an incident involving a Boeing 737 airplane that occurred on September 19, 2017. The NTSB has appointed a U.S. Accredited Representative to assist the AAIB of Thailand's investigation under the provisions of ICAO Annex 13 as the State of Manufacturer and Design of the airplane.All investigative information will be released by the AAIB of Thailand.

## Aircraft

- Registration: HS-LUJ (not matched to a registry record)
- Reported make and model: BOEING 737
- Category: Airplane
- Serial number: 39864
- Damage: No damage

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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