5 fatalities

Fatal Structural Failure of Twin-Engine Aircraft Near Bengkalis (PK-PNR)

Bengkalis, IndonesiaFlight

On July 10, 1991, a Piper PA-31-350 Navajo Chieftain (registration PK-PNR) operated by PTP IV was involved in an aviation accident near Bengkalis, Indonesia in flight. 5 people were killed. Investigators recorded the probable cause as: Maneuver beyond the flight envelope was executed, so that the structure failed and the aircraft disintegrated. This summary draws on records from the Bureau of Aircraft Accidents Archives (B3A).

Sourcesthe Bureau of Aircraft Accidents Archives (B3A)Source recordUpdated 2026-09-03Data APIEditorial standards

A twin-engine aircraft crashed in a wooded area near Bengkalis after suffering a structural failure during an executive flight from Simpang Tiga, killing all five occupants.

Incident Overview and Flight Details On an executive flight, a twin-engine aircraft departed Simpang Tiga with a crew of one pilot and four passengers aboard. During the en route phase of the flight, the aircraft experienced a structural failure. This event caused the aircraft to enter a dive, ultimately leading to a crash in a wooded area near Bengkalis. All five individuals on board were killed in the accident. ## Official Investigation Findings The official investigation determined that the probable cause of the accident was a maneuver executed beyond the aircraft's flight envelope. This action resulted in structural failure, causing the aircraft to disintegrate.

Frequently asked questions

What happened in the 10 Jul 1991 Piper PA-31-350 Navajo Chieftain accident near Bengkalis, Indonesia?

A twin-engine aircraft crashed in a wooded area near Bengkalis after suffering a structural failure during an executive flight from Simpang Tiga, killing all five occupants.

Were there any fatalities in the 10 Jul 1991 Piper PA-31-350 Navajo Chieftain accident?

The accident was fatal, resulting in 5 fatalities.

What aircraft was involved and where did it happen?

The accident on 10 Jul 1991 involved a Piper PA-31-350 Navajo Chieftain, registration PK-PNR, operated by PTP IV, at Bengkalis, Indonesia.

What was the probable cause of the accident?

Maneuver beyond the flight envelope was executed, so that the structure failed and the aircraft disintegrated.