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Commuter light transport continues takeoff with left engine oil pressure warning light illuminated. It was a false warning.
| Attributes | |
| ACN | 179257 |
| Time | |
| Date | 199105 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : lax |
| State Reference | CA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : instrument pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 85 flight time total : 8600 flight time type : 90 |
| ASRS Report | 179257 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : published procedure non adherence : far |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
When we were cleared for takeoff, the takeoff inhibit feature was activated (it eliminates unnecessary warnings during takeoff). At this time an erroneous left engine oil pressure warning light illuminated. The engine's oil pressure and temperature gauges showed normal readings. Because this aircraft had had the identical problem on the right side the previous day and because the problem is deferrable, I decided to continue the takeoff. Unfortunately, the MEL requires that the maintenance people defer the item and check the oil quantity prior to each takeoff. In the future I intend to be more careful about the legal aspects of mechanical problems, but I also realize that productivity requires a decision to be made based on the known circumstances.
Original NASA ASRS Text
Title: COMMUTER LTT CONTINUES TKOF WITH LEFT ENGINE OIL PRESSURE WARNING LIGHT ILLUMINATED. IT WAS A FALSE WARNING.
Narrative: WHEN WE WERE CLRED FOR TKOF, THE TKOF INHIBIT FEATURE WAS ACTIVATED (IT ELIMINATES UNNECESSARY WARNINGS DURING TKOF). AT THIS TIME AN ERRONEOUS LEFT ENG OIL PRESSURE WARNING LIGHT ILLUMINATED. THE ENG'S OIL PRESSURE AND TEMP GAUGES SHOWED NORMAL READINGS. BECAUSE THIS ACFT HAD HAD THE IDENTICAL PROB ON THE RIGHT SIDE THE PREVIOUS DAY AND BECAUSE THE PROB IS DEFERRABLE, I DECIDED TO CONTINUE THE TKOF. UNFORTUNATELY, THE MEL REQUIRES THAT THE MAINT PEOPLE DEFER THE ITEM AND CHK THE OIL QUANTITY PRIOR TO EACH TKOF. IN THE FUTURE I INTEND TO BE MORE CAREFUL ABOUT THE LEGAL ASPECTS OF MECHANICAL PROBS, BUT I ALSO REALIZE THAT PRODUCTIVITY REQUIRES A DECISION TO BE MADE BASED ON THE KNOWN CIRCUMSTANCES.
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.