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An ATR42 on descent at 11000 ft declared an emergency due to #2 engine loss of power caused by #6 and #7 bearing failure.
| Attributes | |
| ACN | 434151 |
| Time | |
| Date | 199904 |
| Day | Thu |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : sju.airport |
| State Reference | PR |
| Altitude | msl single value : 11000 |
| Environment | |
| Flight Conditions | IMC |
| Weather Elements | Thunderstorm Rain |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | artcc : zsu.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | ATR 42 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | descent : vacating altitude |
| Route In Use | enroute airway : g633.airway |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 220 flight time total : 3800 |
| ASRS Report | 434151 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : #2 engine indications other flight crewa other flight crewb |
| Resolutory Action | flight crew : landed in emergency condition flight crew : declared emergency |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
I was PIC of air carrier (an ATR42, #nxxzz) on apr/xa/99. We were descending into sju from antiqua. A large bang was heard followed by a yawing of the aircraft. (The autoplt was on MEL.) engine indications revealed that the #2 engine on ATR42 #nxxzz had failed. This was further backed up by the copilot. We went through our checklists and landed uneventfully at sju at XA30 local. Callback conversation with reporter revealed the following information: the reporter stated the engine was a P&west 120A and the power loss was caused by failure of the #6 and #7 bearings.
Original NASA ASRS Text
Title: AN ATR42 ON DSCNT AT 11000 FT DECLARED AN EMER DUE TO #2 ENG LOSS OF PWR CAUSED BY #6 AND #7 BEARING FAILURE.
Narrative: I WAS PIC OF ACR (AN ATR42, #NXXZZ) ON APR/XA/99. WE WERE DSNDING INTO SJU FROM ANTIQUA. A LARGE BANG WAS HEARD FOLLOWED BY A YAWING OF THE ACFT. (THE AUTOPLT WAS ON MEL.) ENG INDICATIONS REVEALED THAT THE #2 ENG ON ATR42 #NXXZZ HAD FAILED. THIS WAS FURTHER BACKED UP BY THE COPLT. WE WENT THROUGH OUR CHKLISTS AND LANDED UNEVENTFULLY AT SJU AT XA30 LCL. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ENG WAS A P&W 120A AND THE PWR LOSS WAS CAUSED BY FAILURE OF THE #6 AND #7 BEARINGS.
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.