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A DC9-30 at FL200 noted gradual decrease of left engine oil quantity. Engine not shut down as aircraft landed with 5 quart indication. Cause unknown.
| Attributes | |
| ACN | 538014 |
| Time | |
| Date | 200202 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | msl single value : 20000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 30 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 230 flight time total : 10000 flight time type : 1100 |
| ASRS Report | 538014 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : #1 engine oil qty indicator other flight crewa other flight crewb |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
Loss of oil quantity, left engine. Began with 15 quarts at cruise. Noticed quantity on left engine down to 7 quarts (eventually went to 5 quarts). Did not shut down engine. Landed uneventfully at ZZZ.
Original NASA ASRS Text
Title: A DC9-30 AT FL200 NOTED GRADUAL DECREASE OF L ENG OIL QUANTITY. ENG NOT SHUT DOWN AS ACFT LANDED WITH 5 QUART INDICATION. CAUSE UNKNOWN.
Narrative: LOSS OF OIL QUANTITY, L ENG. BEGAN WITH 15 QUARTS AT CRUISE. NOTICED QUANTITY ON L ENG DOWN TO 7 QUARTS (EVENTUALLY WENT TO 5 QUARTS). DID NOT SHUT DOWN ENG. LANDED UNEVENTFULLY AT ZZZ.
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.