Atr ATR72 incident near Ambon, Id, July 3, 2020
On July 3, 2020 at about 4:12 am local time, a Atr ATR72, registered PKWHY, was involved in an incident during initial climb near Ambon (Pattimura International airport). It was flown under non-U.S. commercial rules. No one was hurt; 49 people were on board or involved.
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 3, 2020 · about 4:12 am local time
- Place
- Ambon, Indonesia · Pattimura International
- Type
- Incident
- Injuries
- No one was hurt; 49 people were on board or involved.
- Weather
- not recorded
- Aircraft
- Atr ATR72 600
- Registration
- PKWHY · no longer on the register · serial 1442
- Damage
- Not recorded
- Flight
- Flight · non-U.S. commercial rules
The NTSB's narrative preliminary · quoted from the NTSB record
The National Transportation Safety Committee of Indonesia (KNKT) has notified the NTSB of an incident involving an ATR 72-600, which occurred on July 3, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the KNKT investigation under the provisions of ICAO Annex 13 as the State of Manufacturer and Design of aircraft components. All investigative information will be released by the KNKT.
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
- Electrical system malf/failure during initial climb defining event
The aircraft
- Landing gear: fixed
The flight
- Departed from: WAPP Ambon
- Flight plan: not recorded
Weather at the time
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Cabi | 2 | |||
| Flight crew | 2 | |||
| Passengers | 45 |
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.
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.