# NTSB DCA25WA287: Boeing 737, Gauteng, South Africa, August 2, 2025

- Type: NTSB incident investigation
- Classification: Incident · Class 5 · Foreign
- Date: August 2, 2025, 08:27 local (06:27 UTC)
- Place: Gauteng, South Africa · departure and return airport coords
- Coordinates: -26.133333, 28.25 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=-26.1333&lon=28.2500&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Defining event: [Enroute-cruise: Pressure/environ sys malf/fail](https://openairdocs.org/ntsb-events/331)
- Status: Led by another country's authority
- Investigation class: Class 5 - No publish
- NTSB office: Major Investigations Division
- Lead agency: Other
- NTSB case key (mKey): 200743
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA25WA287
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/200743/pdf
- Page: https://openairdocs.org/ntsb/DCA25WA287

## Sequence of events

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

- [Enroute-cruise: 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)

## Aircraft

- Registration: ZS-ZWO (not matched to a registry record)
- Reported make and model: BOEING 737 (800)
- Category: Airplane
- Serial number: 28373
- Engines: CFM International CFM56-7B27 turbo fan; CFM International CFM56-7B27 turbo fan
- Damage: No damage
- Flight: Non-U.S., commercial
- Operator: Safair Operations Pty Ltd
- Registered owner: Safair Operations Pty Ltd
- Airworthiness certificate: Standard, Transport
- Departed: FAOR, Gauteng, OF
- Destination: HTZA, Zanzibar, OF

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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