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A B737-400 diverted due to #1 CSD overheat. Oil svced at departure station due overheat report. #2 CSD previously disconnected for failure. Maintenance control was not advised of maintenance action taken.
| Attributes | |
| ACN | 690040 |
| Time | |
| Date | 200603 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : repairman technician : airframe technician : powerplant |
| Experience | maintenance repairman : 26 |
| ASRS Report | 690040 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far non adherence : company policies |
| Independent Detector | aircraft equipment other aircraft equipment : #1 csd temp indicator other flight crewa other flight crewb |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : non compliance with legal requirements performance deficiency : logbook entry performance deficiency : fault isolation performance deficiency : repair |
| Supplementary | |
| Problem Areas | Chart Or Publication Aircraft Environmental Factor Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Air carrier arrived at my gate with engine #1 CSD disconnect due to high temperature. Found #1 engine CSD oversvced with oil; drained; resvced to proper level. Reconnected CSD. Run up #1 engine; no high temperature indication; #1 engine operation checked normal; APU generator operations checked normal. Note: #2 engine CSD is on MEL during this event. Accomplished the procedures required by MEL on #2 engine CSD which is to check oil in APU and #1 engine CSD. Signed logbook off. Air carrier X departed ZZZ1 ok. Later that day the air carrier X had the same problem CSD high oil temperature on #1 engine in-flight. Air carrier X diverted to another airport. I feel that and was told that what I did to address the write-up was not wrong; but I did not check with maintenance control in the dispatch of this air carrier X due to the fact that it had #2 engine CSD on MEL. I was not aware of this rule. It has been told to me 'now' that any time that you have a major operating system on MEL and have a problem with the other you must go through maintenance control for the dispatch of the air carrier X.
Original NASA ASRS Text
Title: A B737-400 DIVERTED DUE TO #1 CSD OVERHEAT. OIL SVCED AT DEP STATION DUE OVERHEAT RPT. #2 CSD PREVIOUSLY DISCONNECTED FOR FAILURE. MAINT CTL WAS NOT ADVISED OF MAINT ACTION TAKEN.
Narrative: ACR ARRIVED AT MY GATE WITH ENG #1 CSD DISCONNECT DUE TO HIGH TEMP. FOUND #1 ENG CSD OVERSVCED WITH OIL; DRAINED; RESVCED TO PROPER LEVEL. RECONNECTED CSD. RUN UP #1 ENG; NO HIGH TEMP INDICATION; #1 ENG OP CHKED NORMAL; APU GENERATOR OPS CHKED NORMAL. NOTE: #2 ENG CSD IS ON MEL DURING THIS EVENT. ACCOMPLISHED THE PROCEDURES REQUIRED BY MEL ON #2 ENG CSD WHICH IS TO CHK OIL IN APU AND #1 ENG CSD. SIGNED LOGBOOK OFF. ACR X DEPARTED ZZZ1 OK. LATER THAT DAY THE ACR X HAD THE SAME PROB CSD HIGH OIL TEMP ON #1 ENG INFLT. ACR X DIVERTED TO ANOTHER ARPT. I FEEL THAT AND WAS TOLD THAT WHAT I DID TO ADDRESS THE WRITE-UP WAS NOT WRONG; BUT I DID NOT CHK WITH MAINT CTL IN THE DISPATCH OF THIS ACR X DUE TO THE FACT THAT IT HAD #2 ENG CSD ON MEL. I WAS NOT AWARE OF THIS RULE. IT HAS BEEN TOLD TO ME 'NOW' THAT ANY TIME THAT YOU HAVE A MAJOR OPERATING SYS ON MEL AND HAVE A PROB WITH THE OTHER YOU MUST GO THROUGH MAINT CTL FOR THE DISPATCH OF THE ACR X.
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.