 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An MD80 disconnected #1 CSD for high oil temperature. Technician corrected oil leak at filter housing. Ran engine, found CSD failed.
| Attributes | |
| ACN | 542656 |
| Time | |
| Date | 200203 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | other |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 30 |
| ASRS Report | 542656 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : csd high temp ind other flight crewa other flight crewb |
| Resolutory Action | other |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : briefing performance deficiency : testing performance deficiency : logbook entry performance deficiency : inspection performance deficiency : fault isolation performance deficiency : installation |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Chart Or Publication Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft arrived at ZZZ on mar/mon/02 with #1 CSD disconnected due to high oil temperature. Upon inspection, I found that there was no oil in CSD and the source of the oil leak was from a gap between oil filter housing and mounting base. The housing was safety wired but was loose. The housing, including the filter was removed, inspected, installed and torqued per maintenance manual and safe tied. The CSD was svced and I had the pilots run #1 engine for check and operation of CSD and generator. There was no volt or frequency, so CSD was disconnected, placarded inoperative per MEL. Aircraft was then downgraded to CAT ii status. And after talking to air carrier maintenance supervisor, I released the aircraft for service.
Original NASA ASRS Text
Title: AN MD80 DISCONNECTED #1 CSD FOR HIGH OIL TEMP. TECHNICIAN CORRECTED OIL LEAK AT FILTER HOUSING. RAN ENG, FOUND CSD FAILED.
Narrative: ACFT ARRIVED AT ZZZ ON MAR/MON/02 WITH #1 CSD DISCONNECTED DUE TO HIGH OIL TEMP. UPON INSPECTION, I FOUND THAT THERE WAS NO OIL IN CSD AND THE SOURCE OF THE OIL LEAK WAS FROM A GAP BTWN OIL FILTER HOUSING AND MOUNTING BASE. THE HOUSING WAS SAFETY WIRED BUT WAS LOOSE. THE HOUSING, INCLUDING THE FILTER WAS REMOVED, INSPECTED, INSTALLED AND TORQUED PER MAINT MANUAL AND SAFE TIED. THE CSD WAS SVCED AND I HAD THE PLTS RUN #1 ENG FOR CHK AND OP OF CSD AND GENERATOR. THERE WAS NO VOLT OR FREQ, SO CSD WAS DISCONNECTED, PLACARDED INOP PER MEL. ACFT WAS THEN DOWNGRADED TO CAT II STATUS. AND AFTER TALKING TO ACR MAINT SUPVR, I RELEASED THE ACFT FOR SVC.
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.