Serious incident British Aerospace BAe-146-300 N611AW, Friday 27 January 1995
ASN logo
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information. If you feel this information is incomplete or incorrect, you can submit corrected information.

Date:Friday 27 January 1995
Time:18:23 LT
Type:Silhouette image of generic B463 model; specific model in this crash may look slightly different    
British Aerospace BAe-146-300
Owner/operator:Air Wisconsin
Registration: N611AW
MSN: E3120
Engine model:Allied Signal ALF-502R-5
Fatalities:Fatalities: 0 / Occupants: 89
Other fatalities:0
Aircraft damage: None
Category:Serious incident
Location:Madison, WI -   United States of America
Phase: En route
Departure airport:Chicago, IL (KORD)
Destination airport:(KMSN)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
While in cruise flight at 12,000 feet mean sea level, the no. 2 engine had a fire indication. The crew shut the engine down in flight and landed uneventfully. Investigation found a cracked left fuel manifold segment in the no. 2 engine. Metallurgical analysis established that the crack was characterized by fatigue striations, and that the crack occurred in a position on the manifold where there was an abrupt change in material thickness. There had been two previous occurrences of cracked manifolds reported by the operator and investigated by the NTSB. Prior to this incident, the manufacturer had taken three actions to resolve fuel manifold cracking; they were: 1.) introduce a redesign of manifold segments, 2.) agree to replace all operator manifold assemblies with the improved design, and 3.) introduce an eddy current inspection procedure for detecting manifold cracks. Following this incident, the FAA mandated more frequent inspection intervals and adoption of the new eddy-current inspection process for the unimproved manifolds.

Probable Cause: A fuel leak in the no. 2 engine left fuel manifold segment due to a design defect which led to a fatigue crack.

Accident investigation:
Investigating agency: NTSB
Report number: CHI95IA079
Status: Investigation completed
Duration: 5 years and 7 months
Download report: Final report



History of this aircraft

Other occurrences involving this aircraft

20 July 1993 N611AW Air Wisconsin 0 Chicago, IL min


Revision history:

15-Mar-2024 09:59 ASN Update Bot Added

Corrections or additions? ... Edit this accident description

The Aviation Safety Network is an exclusive service provided by:
Quick Links:

CONNECT WITH US: FSF on social media FSF Facebook FSF Twitter FSF Youtube FSF LinkedIn FSF Instagram

©2024 Flight Safety Foundation

1920 Ballenger Av, 4th Fl.
Alexandria, Virginia 22314