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An air carrier flight crew shuts down the #2 engine when the oil pressure and quantity go below minimums and proceed directly to the airport.
| Attributes | |
| ACN | 327074 |
| Time | |
| Date | 199602 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : rsw |
| State Reference | FL |
| Altitude | msl bound lower : 10000 msl bound upper : 10000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zma |
| Operator | common carrier : air carrier |
| Make Model Name | Brasilia EMB-120 All Series |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute airway : zma |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 280 flight time total : 15584 flight time type : 6400 |
| ASRS Report | 327074 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 300 flight time total : 8000 flight time type : 4000 |
| ASRS Report | 327073 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : declared emergency flight crew : overcame equipment problem other |
| Consequence | other Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
During flight aircraft yawed slightly right and a change in the sound was noted. A look at the engine instruments showed a rise in T6 and a drop in torque. Oil pressure was noticed to be fluctuating between 55 to 40 psi. Number 2 engine power levers were being reduced to 75 nh when the engine oil pressure dropped to below 40 psi and the engine oil aural warning was heard. A precautionary engine shutdown was performed on the #2 engine. The flight declared an emergency and proceeded direct to mco. The flight landed and taxied to the gate without further incident. Callback conversation with reporter revealed the following information: this flight crew was flying an emb 120 when the #2 engine instruments show some abnormal indications. The captain said that the oil loss occurred because a snubber bolt had loosened allowing a turbine to shift, and finally, throw a blade that struck an oil line causing the leak. The captain said the flight crew had already started the high temperature checklist and went from that to the low oil pressure checklist then to the shutdown and landing checklists. Maintenance personnel were able to find the problem fairly quickly the reporter said.
Original NASA ASRS Text
Title: AN ACR FLC SHUTS DOWN THE #2 ENG WHEN THE OIL PRESSURE AND QUANTITY GO BELOW MINIMUMS AND PROCEED DIRECTLY TO THE ARPT.
Narrative: DURING FLT ACFT YAWED SLIGHTLY R AND A CHANGE IN THE SOUND WAS NOTED. A LOOK AT THE ENG INSTS SHOWED A RISE IN T6 AND A DROP IN TORQUE. OIL PRESSURE WAS NOTICED TO BE FLUCTUATING BETWEEN 55 TO 40 PSI. NUMBER 2 ENG PWR LEVERS WERE BEING REDUCED TO 75 NH WHEN THE ENG OIL PRESSURE DROPPED TO BELOW 40 PSI AND THE ENG OIL AURAL WARNING WAS HEARD. A PRECAUTIONARY ENG SHUTDOWN WAS PERFORMED ON THE #2 ENG. THE FLT DECLARED AN EMER AND PROCEEDED DIRECT TO MCO. THE FLT LANDED AND TAXIED TO THE GATE WITHOUT FURTHER INCIDENT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THIS FLC WAS FLYING AN EMB 120 WHEN THE #2 ENG INSTS SHOW SOME ABNORMAL INDICATIONS. THE CAPT SAID THAT THE OIL LOSS OCCURRED BECAUSE A SNUBBER BOLT HAD LOOSENED ALLOWING A TURBINE TO SHIFT, AND FINALLY, THROW A BLADE THAT STRUCK AN OIL LINE CAUSING THE LEAK. THE CAPT SAID THE FLC HAD ALREADY STARTED THE HIGH TEMP CHKLIST AND WENT FROM THAT TO THE LOW OIL PRESSURE CHKLIST THEN TO THE SHUTDOWN AND LNDG CHKLISTS. MAINT PERSONNEL WERE ABLE TO FIND THE PROB FAIRLY QUICKLY THE RPTR SAID.
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.