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An A319 on descent at 13000 ft experienced left engine N1 pulses and cabin attendant reported flames from left engine with loud bangs and vibration.
| Attributes | |
| ACN | 724774 |
| Time | |
| Date | 200701 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 13000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | tracon : zzz.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | A319 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 724774 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : n1 indications other other : 3 |
| Resolutory Action | aircraft : equipment problem dissipated |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Descent through 13000 ft the left engine began to pulse between 80-60% N1. The a flight attendant reported large orange flames coming from and all around the left engine accompanied by loud bangs and vibrations. I took control of the airplane and disconnected the autoplt and autothrottles. Reduced power on left engine to idle while slowing aircraft speed and rate of descent. Compressor stalls abated when at idle; power up to 50% N1 was normal. No abnormal engine indications; temperatures; pressures and vibrations looked normal. Advised ATC engine had compressor stalled but was normal now and would like to continue the 40 mi to ZZZ; without delay. Normal landing at ZZZ. Maintenance was advised and reported to me that they had not observed any abnormal engine indications. We definitely had compressor stalls as witnessed by all crew and passenger; the fact that the engine monitor system did not record it is of concern to me.
Original NASA ASRS Text
Title: AN A319 ON DSCNT AT 13000 FT EXPERIENCED L ENG N1 PULSES AND CABIN ATTENDANT RPTED FLAMES FROM L ENG WITH LOUD BANGS AND VIBRATION.
Narrative: DSCNT THROUGH 13000 FT THE L ENG BEGAN TO PULSE BTWN 80-60% N1. THE A FLT ATTENDANT RPTED LARGE ORANGE FLAMES COMING FROM AND ALL AROUND THE L ENG ACCOMPANIED BY LOUD BANGS AND VIBRATIONS. I TOOK CTL OF THE AIRPLANE AND DISCONNECTED THE AUTOPLT AND AUTOTHROTTLES. REDUCED PWR ON L ENG TO IDLE WHILE SLOWING ACFT SPD AND RATE OF DSCNT. COMPRESSOR STALLS ABATED WHEN AT IDLE; PWR UP TO 50% N1 WAS NORMAL. NO ABNORMAL ENG INDICATIONS; TEMPS; PRESSURES AND VIBRATIONS LOOKED NORMAL. ADVISED ATC ENG HAD COMPRESSOR STALLED BUT WAS NORMAL NOW AND WOULD LIKE TO CONTINUE THE 40 MI TO ZZZ; WITHOUT DELAY. NORMAL LNDG AT ZZZ. MAINT WAS ADVISED AND RPTED TO ME THAT THEY HAD NOT OBSERVED ANY ABNORMAL ENG INDICATIONS. WE DEFINITELY HAD COMPRESSOR STALLS AS WITNESSED BY ALL CREW AND PAX; THE FACT THAT THE ENG MONITOR SYS DID NOT RECORD IT IS OF CONCERN TO ME.
Data retrieved from NASA's ASRS site as of January 2009 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.