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Widebody cargo aircraft first officer reported smoke of unknown origin in the cockpit shortly before landing.
| Attributes | |
| ACN | 1561164 |
| Time | |
| Date | 201807 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Make Model Name | Widebody Transport |
| Flight Phase | Descent |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Not Flying First Officer |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine |
| Events | |
| Anomaly | Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor |
Narrative:
On the arrival; descending through about FL180; the captain and I could see and smell smoke in the cockpit. It was definitely noticeable but not strong enough at that point to cause physiological issues. There were no audible or visual detector indications of fire or smoke in the cargo areas; just the sight and smell of smoke in the cockpit. We immediately donned our oxygen masks and notified the jumpseater in the courier area to do the same. As the captain continued to fly the airplane; he [advised ATC] and requested priority landing. I ran the smoke/fire/fumes QRH procedure and within a few minutes; the smoke dissipated. We left the oxygen masks on and continued for an immediate landing; just in case the smoke returned. We landed uneventfully and taxied to the gate. Fire personnel boarded the airplane to gather information about the event.it was not clear to us what caused the smoke. Maintenance asked if it smelled like an electrical fire; and neither of us thought so. To the captain; it was more of a petroleum-based smell. The airplane came out of major maintenance recently.
Original NASA ASRS Text
Title: Widebody cargo aircraft First Officer reported smoke of unknown origin in the cockpit shortly before landing.
Narrative: On the arrival; descending through about FL180; the Captain and I could see and smell smoke in the cockpit. It was definitely noticeable but not strong enough at that point to cause physiological issues. There were no audible or visual detector indications of fire or smoke in the cargo areas; just the sight and smell of smoke in the cockpit. We immediately donned our oxygen masks and notified the jumpseater in the courier area to do the same. As the Captain continued to fly the airplane; he [advised ATC] and requested priority landing. I ran the Smoke/Fire/Fumes QRH procedure and within a few minutes; the smoke dissipated. We left the oxygen masks on and continued for an immediate landing; just in case the smoke returned. We landed uneventfully and taxied to the gate. Fire personnel boarded the airplane to gather information about the event.It was not clear to us what caused the smoke. Maintenance asked if it smelled like an electrical fire; and neither of us thought so. To the Captain; it was more of a petroleum-based smell. The airplane came out of major maintenance recently.
Data retrieved from NASA's ASRS site 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.