British 146-300A N611AW

Summary

On 21 July 1993 at about 00:54 local time, a British 146-300A registered N611AW, operated by Air Wisconsin, Inc., was involved in an incident near Chicago, Illinois, United States. 8 people were on board and nobody was injured. The aircraft was slightly damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.

Date

21 July 1993 at 00:54

Classification

Incident

Location

Chicago, Illinois, United States

Coordinates

Not recorded

Aircraft

British 146-300A

Registration

N611AW

Category

Airplane

Engines

4

Operator

Air Wisconsin, Inc.

Operating rule

Part 121: Air Carrier

Purpose of flight

Unknown

Phase of flight

Not recorded

Route

Unknown → Appleton

Aircraft damage

Minor

Weather

VMC

Light

Dusk

NTSB number

CHI93IA312

Nobody was injured.

was a crack in the fuel system fuel flow distribution manifold which resulted from an inadequate design by the manufacturer.

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

Read the full NTSB narrative

DURING THE INITIAL CLIMBOUT THE FLIGHT ATTENDANT OBSERVED THE TAILCONE OF THE AIRPLANE'S NUMBER FOUR ENGINE GLOWING. AS THE POWER WAS REDUCED THE GLOW CEASED. THE AIRPLANE RETURNED TO THE DEPARTURE AIRPORT. THE ENGINE WAS INSPECTED AND ITS FUEL MANIFOLD WAS FOUND CRACKED AT THE SCALLOP RADIUS. THE MANUFACTURER MODIFIED THE FUEL MANIFOLD SO THAT ITS WALL WOULD BE THICKER AT THE RADIUS. THE MODIFIED MANIFOLD WAS NOT INSTALLED ON THE INCIDENT AIRPLANE.

Quoted verbatim from the NTSB record.