Incident: Boeing 747
Oct 2, 2015 · Russian airspace, JP
NTSB numberENG16IA001Event id20151005X35533
- 0
- Fatalities
- 0
- Serious injuries
- 0
- Minor injuries
- 367
- Uninjured
Probable cause
The PW4056 engine experienced an in-flight loss of power because of damage to the low-pressure turbine (LPT) because of the inadequate overhaul inspection and repair instructions that existed at the time of the LPT module's last overhaul. A vane hook in the LPT case wore to the point to allow a 3rd stage turbine vane cluster to disengage and eventually fall into the path of the 3rd stage turbine blades causing extensive downstream damage to the LPT module.
Source: National Transportation Safety Board. Record last changed Oct 28, 2026, 10:54 UTC.
Aircraft involved
- Aircraft
- Boeing 747
- Registration
- N662US
- Year built
- 1988
- Category
- Airplane
- Damage
- Minor
- Operating rules
- Part 121: air carrier
- Defining event
- Enroute Loss of engine power (partial)
Source: National Transportation Safety Board aviation accident database. Counts only; Voydar holds no names.
This page restates the NTSB's public record. Injury figures are counts; Voydar does not hold or publish the names of anyone involved.