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A long range commercial fixed wing aircraft experienced acrid odors enroute; eventually determined to be from an air conditioning pack. The flight continued to its mainland destination where maintenance investigated.
| Attributes | |
| ACN | 913443 |
| Time | |
| Date | 201009 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Air Conditioning and Pressurization Pack |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 120 Flight Crew Total 22000 Flight Crew Type 2000 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor |
Narrative:
I was on the final crew rest in the forward; lower crew rest bunk. The fire alarm located six inches from my head activated. The pilot not flying was on a bathroom break. He canceled the alarm on the 1L control panel; and opened the crew rest doors to see if there was smoke and if I was ok. He said the pilot flying reported a momentary EICAS smoke lower pilot crew rest. The purser and pilots reported an acrid smell in forward business class; first class and cockpit. There was no visual smoke at any time. Galley power was turned off and galleys were inspected for debris. Captain contacted dispatch and maintenance control and noted the recirculation fans had been turned off at the request of the purser. We turned the fans back on and the smell improved. We decided to continue to destination and have maintenance meet the airplane. On flap extension on descent the smell returned. The purse said he thought the smell was coming from the overhead air conditioning vents. One mechanic said it smelled like engine oil to him and recommended a pack burn out.
Original NASA ASRS Text
Title: A long range commercial fixed wing aircraft experienced acrid odors enroute; eventually determined to be from an air conditioning pack. The flight continued to its mainland destination where maintenance investigated.
Narrative: I was on the final crew rest in the forward; lower crew rest bunk. The fire alarm located six inches from my head activated. The pilot not flying was on a bathroom break. He canceled the alarm on the 1L control panel; and opened the crew rest doors to see if there was smoke and if I was OK. He said the pilot flying reported a momentary EICAS smoke lower pilot crew rest. The Purser and pilots reported an acrid smell in forward business class; first class and cockpit. There was no visual smoke at any time. Galley power was turned off and galleys were inspected for debris. Captain contacted Dispatch and Maintenance Control and noted the recirculation fans had been turned off at the request of the Purser. We turned the fans back on and the smell improved. We decided to continue to destination and have maintenance meet the airplane. On flap extension on descent the smell returned. The Purse said he thought the smell was coming from the overhead air conditioning vents. One mechanic said it smelled like engine oil to him and recommended a pack burn out.
Data retrieved from NASA's ASRS site as of April 2012 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.