 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A lockheed L1011-500 aircraft returned to field due to loss of oil in #2 engine from master chip detector and base with pop-it valve falling out.
| Attributes | |
| ACN | 745447 |
| Time | |
| Date | 200707 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | L-1011-500 Series |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : fcc technician : inspection authority technician : airframe |
| Experience | maintenance technician : 35 |
| ASRS Report | 745447 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : oil loss other flight crewa |
| Resolutory Action | none taken : detected after the fact other |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : tooling contributing factor : schedule pressure performance deficiency : scheduled maintenance performance deficiency : non compliance with legal requirements performance deficiency : installation performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft X returned from flight due to loss of oil to the #2 engine. The master chip detector was found in the cowl. The chip detector and base; with pop-it valve were replaced. The #2 engine was accessed by a lift truck that would not go high enough with the result of having to stand on the guardrail to access the oil cap and chip detectors. The chip detector and oil cap had to be handled with gloves and a rag due to their high temperature. They were inserted; twisted and pulled as a security check. The visual lock was not observed due to the angle I was standing at the time of installation. I believe the above incident would not have occurred had we sufficient time to perform the required inspection and the proper equipment used. This L1011 aircraft was required to have a daily/line service check on a 2 hour turn time. Note: the pop-it valve on the chip detector failed to stop the oil loss.
Original NASA ASRS Text
Title: A LOCKHEED L1011-500 ACFT RETURNED TO FIELD DUE TO LOSS OF OIL IN #2 ENG FROM MASTER CHIP DETECTOR AND BASE WITH POP-IT VALVE FALLING OUT.
Narrative: ACFT X RETURNED FROM FLT DUE TO LOSS OF OIL TO THE #2 ENG. THE MASTER CHIP DETECTOR WAS FOUND IN THE COWL. THE CHIP DETECTOR AND BASE; WITH POP-IT VALVE WERE REPLACED. THE #2 ENG WAS ACCESSED BY A LIFT TRUCK THAT WOULD NOT GO HIGH ENOUGH WITH THE RESULT OF HAVING TO STAND ON THE GUARDRAIL TO ACCESS THE OIL CAP AND CHIP DETECTORS. THE CHIP DETECTOR AND OIL CAP HAD TO BE HANDLED WITH GLOVES AND A RAG DUE TO THEIR HIGH TEMP. THEY WERE INSERTED; TWISTED AND PULLED AS A SECURITY CHK. THE VISUAL LOCK WAS NOT OBSERVED DUE TO THE ANGLE I WAS STANDING AT THE TIME OF INSTALLATION. I BELIEVE THE ABOVE INCIDENT WOULD NOT HAVE OCCURRED HAD WE SUFFICIENT TIME TO PERFORM THE REQUIRED INSPECTION AND THE PROPER EQUIP USED. THIS L1011 ACFT WAS REQUIRED TO HAVE A DAILY/LINE SVC CHK ON A 2 HR TURN TIME. NOTE: THE POP-IT VALVE ON THE CHIP DETECTOR FAILED TO STOP THE OIL LOSS.
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.