# NTSB ENG17WA021: Boeing Boeing 787-9, London, United Kingdom, April 29, 2017

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Foreign investigation
- Date: April 29, 2017, 11:30 local (11:30 UTC)
- Place: London, United Kingdom
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Defining event: [Enroute: Pressure/environ sys malf/fail](https://openairdocs.org/ntsb-events/331)
- Highest injury: No injuries
- Status: Led by another country's authority
- NTSB office: Aviation Engineering Division
- Lead agency: Other
- NTSB case key (mKey): 95101
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ENG17WA021
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/95101/pdf
- Page: https://openairdocs.org/ntsb/ENG17WA021

## Factual narrative

The United Kingdom's Air Accidents Investigation Branch (AAIB) has notified the NTSB of an incident involving a Boeing 787-9, which occurred on April 29, 2017. The NTSB has appointed a U.S. Accredited Representative to assist the AAIB 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.

## Sequence of events

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

- [Enroute: Pressure/environ sys malf/fail](https://openairdocs.org/ntsb-events/331) (defining event)

## Aircraft

- Registration: G-ZBKF (not matched to a registry record)
- Reported make and model: BOEING COMPANY BOEING 787-9 (9)
- Category: Airplane
- Serial number: 38622
- Engines: ROLLS-ROYCE Trent 1000-J2 turbo fan; ROLLS-ROYCE Trent 1000-J2 turbo fan
- Damage: No damage
- Operator: British Airways Plc
- Registered owner: British Airways Plc

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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