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During the initial climb, an AT42 flight crew received a warning that indicated low oil pressure on the left engine. While the crew was following checklist procedures for this warning, the engine failed. The flight crew secured the engine and returned to the departure airport. Maintenance inspection found an oil line that had separated from the engine.
| Attributes | |
| ACN | 340884 |
| Time | |
| Date | 199607 |
| Day | Tue |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : mem |
| State Reference | TN |
| Altitude | msl bound lower : 3500 msl bound upper : 3500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : mem |
| Operator | common carrier : air carrier |
| Make Model Name | ATR 42 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : initial |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 200 flight time total : 5600 flight time type : 900 |
| ASRS Report | 340884 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi |
| Experience | flight time last 90 days : 125 flight time total : 6727 flight time type : 2173 |
| ASRS Report | 340885 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : declared emergency other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Aircraft departed and climbing out at approximately 3500 ft MSL, a left engine low pressure warning illuminated. We initiated the engine oil pressure checklist and approximately halfway through the procedure there was a loud bang followed by a rapid increase in itt at which time the engine was shut down. We returned to memphis single-engine. Declared an emergency with equipment standing by. After taxiing back to the gate a mechanic inspected the engine and found an oil line fitting detached, but still safety wired. The propeller was feathered, but the engine had seized. Callback conversation with reporter revealed the following information: aircraft is an AT42 and the engine that failed is a PW120.
Original NASA ASRS Text
Title: DURING THE INITIAL CLB, AN AT42 FLC RECEIVED A WARNING THAT INDICATED LOW OIL PRESSURE ON THE L ENG. WHILE THE CREW WAS FOLLOWING CHKLIST PROCS FOR THIS WARNING, THE ENG FAILED. THE FLC SECURED THE ENG AND RETURNED TO THE DEP ARPT. MAINT INSPECTION FOUND AN OIL LINE THAT HAD SEPARATED FROM THE ENG.
Narrative: ACFT DEPARTED AND CLBING OUT AT APPROX 3500 FT MSL, A L ENG LOW PRESSURE WARNING ILLUMINATED. WE INITIATED THE ENG OIL PRESSURE CHKLIST AND APPROX HALFWAY THROUGH THE PROC THERE WAS A LOUD BANG FOLLOWED BY A RAPID INCREASE IN ITT AT WHICH TIME THE ENG WAS SHUT DOWN. WE RETURNED TO MEMPHIS SINGLE-ENG. DECLARED AN EMER WITH EQUIP STANDING BY. AFTER TAXIING BACK TO THE GATE A MECH INSPECTED THE ENG AND FOUND AN OIL LINE FITTING DETACHED, BUT STILL SAFETY WIRED. THE PROP WAS FEATHERED, BUT THE ENG HAD SEIZED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: ACFT IS AN AT42 AND THE ENG THAT FAILED IS A PW120.
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.