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Incident: Boeing 757

Sep 6, 2018 · Atlanta, GA

NTSB numberENG18IA036Event id20180913X21320

0
Fatalities
0
Serious injuries
0
Minor injuries
0
Uninjured

Probable cause

A right engine turbine uncontainment resulting from failure of the high pressure turbine (HPT) lenticular seal due to a fatigue crack originating from an overheated region at a knife edge tip. Contributing to the failure was Pratt & Whitney’s decision to introduce the temperature-resistant knife-edge coating as a new-part number lenticular seal on an attrition basis without the option to recoat existing lenticular seals, which delayed implementation of the more durable seal material into the fleet.

NTSB docket ENG18IA036

Source: National Transportation Safety Board. Record last changed Oct 28, 2026, 10:54 UTC.

Aircraft involved

Aircraft
Boeing 757
Registration
N668DN
Year built
1991
Category
Airplane
Damage
Minor
Operating rules
Part 121: air carrier
Defining event
Initial climb Uncontained engine failure

Source: National Transportation Safety Board aviation accident database. Counts only; Voydar holds no names.

Nearest airports

Airports with a Voydar profile closest to the recorded position. Proximity only.

This page restates the NTSB's public record. Injury figures are counts; Voydar does not hold or publish the names of anyone involved.