Fairchild SA227AC N2692P

Summary

On 25 June 1996 at about 19:30 local time, a Fairchild SA227AC registered N2692P, operated by Mesaba Airlines, was involved in an accident near Grand Forks, North Dakota, United States. 19 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

25 June 1996 at 19:30

Classification

Accident

Location

Grand Forks, North Dakota, United States

Coordinates

47.9105, -97.0692

Aircraft

Fairchild SA227AC

Registration

N2692P

Category

Airplane

Engines

2

Operator

Mesaba Airlines

Operating rule

Part 135: Air Taxi & Commuter

Purpose of flight

Unknown

Phase of flight

Not recorded

Route

Unknown → Minneapolis

Aircraft damage

Substantial

Weather

VMC

Light

Day

NTSB number

CHI96FA216

Nobody was injured.

insufficient clearance between the second stage compressor impeller and the shroud. A factor was the subsequent fatigue failure of the impeller.

Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.

Read the full NTSB narrative

The captain reported that the airplane was at 5,000 feet mean sea level, the propeller rpm was 100 percent, and other engine indications were normal. A loss of power on the number two engine was 'sudden and immediate.' The flightcrew declared an emergency and recovered visually to Grand Forks without further incident. Examination of the airplane revealed eleven impact marks to the right side of the fuselage. Two of the impacts penetrated the fuselage side. Examination of the engine revealed evidence of overload failure and penetration of the gear box. Fatigue fractures in the second stage compressor impeller rim emanated from a heat affected, rubbed area on the impeller blades. A corresponding rubbed area was evident on the impeller shroud, and aluminum material was fused to the titanium impeller. No evidence of material defects were noted.

Quoted verbatim from the NTSB record.