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A canadair CL65 on approach at 10000 ft declared an emergency due to fumes or smoke in the cockpit and cabin caused by a failed oil seal in the APU.
| Attributes | |
| ACN | 473160 |
| Time | |
| Date | 200004 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : myr.airport |
| State Reference | SC |
| Altitude | msl single value : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : myr.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65, Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 17 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 240 flight time total : 2300 flight time type : 1200 |
| ASRS Report | 473160 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | flight crew : declared emergency |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft Flight Crew Human Performance |
| Primary Problem | Aircraft |
Narrative:
Operating air carrier flight XXX apr/xa/00 aircraft xyz. On 20 NM final to myr the cockpit and cabin filled with smoke. Flight crew donned oxygen masks. I was PF first officer. Prior to donning my mask, the cockpit visibility was approximately 1/3 obscured. After donning mask the visibility was reduced to approximately 1/2 (50%) due to the fact the smoke goggle (integrated) portion of the mask was filthy. This was/is a potentially serious problem. The smoke source was traced to a bad o-ring oil seal on the APU (later by maintenance). We deduced at the time the source of the smoke was air conditioning from the APU as the captain had just xferred the bleeds to the APU. He reversed that action within a couple of mins and the smoke level ceased to increase. I kept my mask on for the duration of the flight, declared an emergency with ATC, and landed uneventfully.
Original NASA ASRS Text
Title: A CANADAIR CL65 ON APCH AT 10000 FT DECLARED AN EMER DUE TO FUMES OR SMOKE IN THE COCKPIT AND CABIN CAUSED BY A FAILED OIL SEAL IN THE APU.
Narrative: OPERATING ACR FLT XXX APR/XA/00 ACFT XYZ. ON 20 NM FINAL TO MYR THE COCKPIT AND CABIN FILLED WITH SMOKE. FLC DONNED OXYGEN MASKS. I WAS PF FO. PRIOR TO DONNING MY MASK, THE COCKPIT VISIBILITY WAS APPROX 1/3 OBSCURED. AFTER DONNING MASK THE VISIBILITY WAS REDUCED TO APPROX 1/2 (50%) DUE TO THE FACT THE SMOKE GOGGLE (INTEGRATED) PORTION OF THE MASK WAS FILTHY. THIS WAS/IS A POTENTIALLY SERIOUS PROB. THE SMOKE SOURCE WAS TRACED TO A BAD O-RING OIL SEAL ON THE APU (LATER BY MAINT). WE DEDUCED AT THE TIME THE SOURCE OF THE SMOKE WAS AIR CONDITIONING FROM THE APU AS THE CAPT HAD JUST XFERRED THE BLEEDS TO THE APU. HE REVERSED THAT ACTION WITHIN A COUPLE OF MINS AND THE SMOKE LEVEL CEASED TO INCREASE. I KEPT MY MASK ON FOR THE DURATION OF THE FLT, DECLARED AN EMER WITH ATC, AND LANDED UNEVENTFULLY.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.