Israel 1124 N666K

Summary

On 26 September 1999 at about 15:03 local time, a Israel 1124 registered N666K was involved in an incident near Nantucket, Massachusetts, United States. 4 people were on board and nobody was injured. The aircraft was slightly damaged. No probable cause statement is available for this record.

Date

26 September 1999 at 15:03

Classification

Incident

Location

Nantucket, Massachusetts, United States

Coordinates

Not recorded

Aircraft

Israel 1124

Registration

N666K

Category

Airplane

Engines

2

Operator

Not recorded

Operating rule

Part 91: General Aviation

Purpose of flight

Personal

Phase of flight

Not recorded

Route

Nantucket → Gaithersburg

Aircraft damage

Minor

Weather

VMC

Light

Day

NTSB number

NYC99IA239

Nobody was injured.

The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.

Nothing about the cause is stated here that is not in the source record.

Read the full NTSB narrative

While in a climb after departure, the left engine failed. All procedures were accomplished to secure the engine and the airplane landed uneventfully. Examination of the airplane revealed extensive damage to the left engine nacelle and turbine section. The first stage low pressure turbine rotor disk was found separated from the low-pressure turbine shaft, and had penetrated the inner stage transition liner. The engine was removed from the airplane and disassembled. The disassembly revealed the first stage low-pressure turbine (LPT) had a piece of the web and rim, missing outboard of the curvic coupling. Metallurgical examination of the ruptured first stage LPT disk revealed a high cycle fatigue failure that originated from the subsurface location. The disk's dimensions adjacent to the fracture and the disk's material properties conformed to engineering specifications.

Quoted verbatim from the NTSB record.