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B757 experiences several compressor stalls after engine intake ice build up constricted the airflow with flight diverting into mia, fl.
| Attributes | |
| ACN | 586054 |
| Time | |
| Date | 200306 |
| Day | Sun |
| Place | |
| Locale Reference | atc facility : zma.artcc |
| State Reference | FL |
| Altitude | msl single value : 31000 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Thunderstorm Rain Turbulence |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : intermediate altitude cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight attendant : on duty oversight : flight attendant in charge |
| Qualification | flight attendant : currently qualified flight attendant aircraft qualified on : 7 |
| Experience | flight attendant time airline total : 11 flight attendant time total : 11 flight attendant time type : 60 |
| ASRS Report | 586054 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical inflight encounter : weather other anomaly other |
| Independent Detector | other flight crewa other flight crewb other other : cab 1 |
| Resolutory Action | controller : provided flight assist controller : issued new clearance flight crew : diverted to another airport flight crew : declared emergency |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Weather Aircraft |
| Primary Problem | Aircraft |
Narrative:
Plane was delayed into mco due to WX, rain, departed 25 mins late. As we were climbing, there was some turbulence and rain. When the pilots were reaching our cruise altitude, they pwred back. At about FL310, we experienced a vibration throughout the aircraft, then 3 significant 'booms' -- compression stalls. The pilots adjusted the throttles, the vibrations varied. When I called the cockpit to see what had happened, it took a while for them to answer! From what the pilots observed, the right engine intake heater was inoperative, with all the rain, we had ice built up on the intake of the engine. When they pwred back, there wasn't a clear airflow -- causing compression stalls. I asked the other flight attendant to check out the right engine, and there was significant scoring/blackening. We were diverted to mia, made an emergency landing without incident -- with fire trucks and emergency equipment lining the runway. Taxied to gate.
Original NASA ASRS Text
Title: B757 EXPERIENCES SEVERAL COMPRESSOR STALLS AFTER ENG INTAKE ICE BUILD UP CONSTRICTED THE AIRFLOW WITH FLT DIVERTING INTO MIA, FL.
Narrative: PLANE WAS DELAYED INTO MCO DUE TO WX, RAIN, DEPARTED 25 MINS LATE. AS WE WERE CLBING, THERE WAS SOME TURB AND RAIN. WHEN THE PLTS WERE REACHING OUR CRUISE ALT, THEY PWRED BACK. AT ABOUT FL310, WE EXPERIENCED A VIBRATION THROUGHOUT THE ACFT, THEN 3 SIGNIFICANT 'BOOMS' -- COMPRESSION STALLS. THE PLTS ADJUSTED THE THROTTLES, THE VIBRATIONS VARIED. WHEN I CALLED THE COCKPIT TO SEE WHAT HAD HAPPENED, IT TOOK A WHILE FOR THEM TO ANSWER! FROM WHAT THE PLTS OBSERVED, THE R ENG INTAKE HEATER WAS INOP, WITH ALL THE RAIN, WE HAD ICE BUILT UP ON THE INTAKE OF THE ENG. WHEN THEY PWRED BACK, THERE WASN'T A CLR AIRFLOW -- CAUSING COMPRESSION STALLS. I ASKED THE OTHER FLT ATTENDANT TO CHK OUT THE R ENG, AND THERE WAS SIGNIFICANT SCORING/BLACKENING. WE WERE DIVERTED TO MIA, MADE AN EMER LNDG WITHOUT INCIDENT -- WITH FIRE TRUCKS AND EMER EQUIP LINING THE RWY. TAXIED TO GATE.
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.