Boeing 737 incident near Perth, Outside the U.S., July 31, 2021
On July 31, 2021 at about 6:00 pm local time, a Boeing 737, registered UNK, was involved in an incident during initial climb near Perth, Outside the U.S.. It was flown under non-U.S. commercial rules. The NTSB record does not give the injuries.
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
- July 31, 2021 · about 6:00 pm local time
- Place
- Perth, Australia
- Type
- Incident
- Injuries
- The NTSB record does not give the injuries.
- Weather
- not recorded
- Aircraft
- Boeing 737 · all 737s on the register
- Registration
- UNK · no longer on the register · serial 38708
- Damage
- Not recorded
- Flight
- Flight · non-U.S. commercial rules
The factual record from the NTSB's investigation tables, in plain English
What happened, in order
- Flight control sys malf/fail during initial climb defining event
The aircraft
- Landing gear: fixed
The flight
- A second pilot was aboard
Weather at the time
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
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.
Other NTSB records under UNK the same tail number, which may have belonged to a different aircraft at the time
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.