 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An emb 140 was dispatched with the APU oil cap not secured. Unit shut down for low oil quantity. Unit operated for 25 legs before shutdown.
| Attributes | |
| ACN | 686513 |
| Time | |
| Date | 200601 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Dawn |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 140 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 686513 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Independent Detector | aircraft equipment other aircraft equipment : low level light and shutdown other other : 2 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : work cards performance deficiency : non compliance with legal requirements performance deficiency : scheduled maintenance performance deficiency : logbook entry performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Chart Or Publication Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft was scheduled for a ps-2 check at base. I svced oil on engines and APU. The aircraft then proceeded for departure; and flew without problems on thursday; friday; and saturday. On sunday; the aircraft was scheduled again for a ps-1 check. It then proceeded for departure towards ZZZ1 where it experienced a shutdown of the APU (I am unsure if it was in-flight or on ground). The mechanics at ZZZ1 then proceeded to examine the occurrence and found the oil cap for the APU to be unsecured. I have not been able to review the logbook for this aircraft; but I did not find any entries that indicate anybody else svced either engines or APU for oil and; at this point; all evidence points to me being at fault for incorrectly securing the APU oil service cap and it may have rattled open after leaving the station; possibly during any one of the 25 legs it flew from the time I svced oil on the APU until it was discovered; 3 days later -- or maybe another mechanic svced oil on the APU sometime after my ps-2 check and it is not my fault. This rings possible but; like I stated earlier; I could not find evidence to support this claim.
Original NASA ASRS Text
Title: AN EMB 140 WAS DISPATCHED WITH THE APU OIL CAP NOT SECURED. UNIT SHUT DOWN FOR LOW OIL QUANTITY. UNIT OPERATED FOR 25 LEGS BEFORE SHUTDOWN.
Narrative: ACFT WAS SCHEDULED FOR A PS-2 CHK AT BASE. I SVCED OIL ON ENGS AND APU. THE ACFT THEN PROCEEDED FOR DEP; AND FLEW WITHOUT PROBS ON THURSDAY; FRIDAY; AND SATURDAY. ON SUNDAY; THE ACFT WAS SCHEDULED AGAIN FOR A PS-1 CHK. IT THEN PROCEEDED FOR DEP TOWARDS ZZZ1 WHERE IT EXPERIENCED A SHUTDOWN OF THE APU (I AM UNSURE IF IT WAS INFLT OR ON GND). THE MECHS AT ZZZ1 THEN PROCEEDED TO EXAMINE THE OCCURRENCE AND FOUND THE OIL CAP FOR THE APU TO BE UNSECURED. I HAVE NOT BEEN ABLE TO REVIEW THE LOGBOOK FOR THIS ACFT; BUT I DID NOT FIND ANY ENTRIES THAT INDICATE ANYBODY ELSE SVCED EITHER ENGS OR APU FOR OIL AND; AT THIS POINT; ALL EVIDENCE POINTS TO ME BEING AT FAULT FOR INCORRECTLY SECURING THE APU OIL SVC CAP AND IT MAY HAVE RATTLED OPEN AFTER LEAVING THE STATION; POSSIBLY DURING ANY ONE OF THE 25 LEGS IT FLEW FROM THE TIME I SVCED OIL ON THE APU UNTIL IT WAS DISCOVERED; 3 DAYS LATER -- OR MAYBE ANOTHER MECH SVCED OIL ON THE APU SOMETIME AFTER MY PS-2 CHK AND IT IS NOT MY FAULT. THIS RINGS POSSIBLE BUT; LIKE I STATED EARLIER; I COULD NOT FIND EVIDENCE TO SUPPORT THIS CLAIM.
Data retrieved from NASA's ASRS site as of January 2009 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.