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Flight crew of an light transport turbo propeller aborted takeoff due to the low oil pressure light coming on during takeoff roll. The cause was found to be low oil quantity.
| Attributes | |
| ACN | 350912 |
| Time | |
| Date | 199610 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : mdt |
| State Reference | PA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | IMC |
| Light | Dawn |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : takeoff ground : preflight other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | other other : other pilot : atp pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 210 flight time total : 9400 flight time type : 1000 |
| ASRS Report | 350912 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : rejected takeoff |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
During preflight found checking #2 engine oil quantity difficult due to dirty oil level sight gauge. Unable to determine if oil level was overfilled or below bottom of sight glass. Use of flashlight and shaking aircraft did not help. Since aircraft had daily inspection, assumed quantity was adequate. Engine start and taxi oil pressure normal. As throttle advanced for takeoff low pressure indication appeared with low oil pressure warning light. Aborted takeoff returned to gate. Mechanic's post inspection unable to determine oil quantity by looking down filler nozzle. Added 6 quarts of oil and ran additive to mix oil before being asked to see quantity in sight gauge by shaking aircraft. Subsequent operations normal. This is a reoccurring problem within the company. The oil gauges are cleaned on 'a' phase. A more frequent cleaning of the sight gauges and their internal reflections would help prevent this problem in the future.
Original NASA ASRS Text
Title: FLC OF AN LTT TURBO PROP ABORTED TKOF DUE TO THE LOW OIL PRESSURE LIGHT COMING ON DURING TKOF ROLL. THE CAUSE WAS FOUND TO BE LOW OIL QUANTITY.
Narrative: DURING PREFLT FOUND CHKING #2 ENG OIL QUANTITY DIFFICULT DUE TO DIRTY OIL LEVEL SIGHT GAUGE. UNABLE TO DETERMINE IF OIL LEVEL WAS OVERFILLED OR BELOW BOTTOM OF SIGHT GLASS. USE OF FLASHLIGHT AND SHAKING ACFT DID NOT HELP. SINCE ACFT HAD DAILY INSPECTION, ASSUMED QUANTITY WAS ADEQUATE. ENG START AND TAXI OIL PRESSURE NORMAL. AS THROTTLE ADVANCED FOR TKOF LOW PRESSURE INDICATION APPEARED WITH LOW OIL PRESSURE WARNING LIGHT. ABORTED TKOF RETURNED TO GATE. MECH'S POST INSPECTION UNABLE TO DETERMINE OIL QUANTITY BY LOOKING DOWN FILLER NOZZLE. ADDED 6 QUARTS OF OIL AND RAN ADDITIVE TO MIX OIL BEFORE BEING ASKED TO SEE QUANTITY IN SIGHT GAUGE BY SHAKING ACFT. SUBSEQUENT OPS NORMAL. THIS IS A REOCCURRING PROB WITHIN THE COMPANY. THE OIL GAUGES ARE CLEANED ON 'A' PHASE. A MORE FREQUENT CLEANING OF THE SIGHT GAUGES AND THEIR INTERNAL REFLECTIONS WOULD HELP PREVENT THIS PROB IN THE FUTURE.
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.