Event Details

Title:In-flight Smoke, Final Report No. 1844 by the Aircraft Accident Investigation Bureau concerning the serious incident to the aircraft Embraer EMB-145LU, HB-JAH operating under flight number CRX 3439 on 28 November 2001 during approach to Zurich Airport
Micro summary:A smoke emergency on this EMB-145 triggers a diversion.
Event Time:2001-11-28 at 1511 UTC
File Name:2001-11-28-CH.pdf
Publishing Agency:Aircraft Accident Investigation Bureau (AAIB)
Publishing Country:Switzerland
Report number:1844
Site of event:Approach to Zurich
Departure:John Paul II International Airport, Krakow-Balice, Poland
Destination:Zurich International Airport (Kloten Airport), Kloten, Switzerland
Airplane Type(s):Embraer EMB-145LU
Flight Phase:Approach
Type of flight:Revenue
Serious Injuries:0
Other Injuries:0
Executive Summary:During descend towards Zurich airport the crew realized some smell in the cabin like the one coming from overheated or singed parts. The cockpit crew decided to ask for landing priority. During the approach the crew noticed light smoke in the cockpit and donned the oxygen masks. The airplane landed safely on runway 16 at Zurich. The passengers were able to leave the airplane at the assigned stand.

Shortly after landing the investigation at the aircraft was taken up.

The serious incident is attributable to the fact that with a high probability bleed air to supply the air conditioning packs was contaminated, caused by carbon residuals on three fuel nozzles of the right engine, leading to smell of burn and smoke in the aircraft.

During the following approach the crew coordination in the multi crew cockpit broke down almost completely. The following factors have been contributing to that:

Unsuitable installation of the cockpit oxygen masks
Contaminated copilot's oxygen mask screen
Intermittent failure of the oxygen mask microphones
Learning Keywords:Operations - Cabin or Cockpit Smoke
Systems - Pneumatics
Close match:Smoke emergency, Final Report of the Aircraft Accident Investigation Bureau concerning the incident with the aircraft Boeing 737-500, G-MSKB on 12 August 1999 at Geneva-Airpor
Smoke warnings on approach to Shannon, World Airways DC-10-30 N526MD, February 14, 2002


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