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After replacing the right engine CSD on an md-80; a mechanic is later informed the same problem with the CSD (idg) oil light flickering in flight; had reoccurred.
| Attributes | |
| ACN | 817062 |
| Time | |
| Date | 200812 |
| Local Time Of Day | 1201 To 1800 |
| 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 |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 817062 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance maintenance problem : non compliance with mel non adherence : published procedure non adherence : far |
| Independent Detector | other other : 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : briefing performance deficiency : inspection performance deficiency : logbook entry performance deficiency : non compliance with legal requirements performance deficiency : testing performance deficiency : fault isolation |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance Company |
| Primary Problem | Maintenance Human Performance |
Narrative:
The night was a normal night; my friday. Lead mechanic gave us the workload. I volunteered for the job so myself and fellow amt performed the task of CSD and generator change on the right engine. All tasks were done per the maintenance manual; aircraft was pulled outside in front of hangar for run; leak and operational check. I was in the cockpit in the right seat and another fellow amt was in the left seat. On the ground; was the amt who assisted me in changing the components. Everything went fine with the leak and operational check. We signed off the work and that was the last I heard until I received the letter today. Callback conversation with reporter revealed the following information: reporter stated that after the CSD was changed; the two-engine md-80 departed for an international trip when the right engine CSD oil light started flickering again. The idg (CSD) was deferred and released for the return flight to a domestic station; where company maintenance did some troubleshooting and found a loose 'B' nut on one of the oil lines to the CSD oil cooler. After tightening all the 'B' nuts for the oil cooler lines; servicing the CSD with oil; performing an engine run and leak check; no further problems were noted.
Original NASA ASRS Text
Title: After replacing the right engine CSD on an MD-80; a mechanic is later informed the same problem with the CSD (IDG) oil light flickering in flight; had reoccurred.
Narrative: The night was a normal night; my Friday. Lead mechanic gave us the workload. I volunteered for the job so myself and fellow AMT performed the task of CSD and generator change on the right engine. All tasks were done per the maintenance manual; aircraft was pulled outside in front of hangar for run; leak and operational check. I was in the cockpit in the right seat and another fellow AMT was in the left seat. On the ground; was the AMT who assisted me in changing the components. Everything went fine with the leak and operational check. We signed off the work and that was the last I heard until I received the letter today. Callback conversation with reporter revealed the following information: Reporter stated that after the CSD was changed; the two-engine MD-80 departed for an international trip when the right engine CSD oil light started flickering again. The IDG (CSD) was deferred and released for the return flight to a domestic station; where company maintenance did some troubleshooting and found a loose 'B' nut on one of the oil lines to the CSD oil cooler. After tightening all the 'B' nuts for the oil cooler lines; servicing the CSD with oil; performing an engine run and leak check; no further problems were noted.
Data retrieved from NASA's ASRS site as of May 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.