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An EMB140 had the APU oil service door depart the aircraft in flight. APU had maintenance performed at departing station.
| Attributes | |
| ACN | 701510 |
| Time | |
| Date | 200606 |
| 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 | EMB ERJ 140 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| ASRS Report | 701510 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : inspection performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Environmental Factor Aircraft Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
An oil service door for the APU separated in-flight from aircraft. I worked on the aircraft that morning trying to find an overtemp condition on the APU. I opened that oil access door and closed it. My lead technician and other lead technician were present while the process was taking place. I removed the silencer to gain access to the anti-surge valve and replace it; I checked for continuity on the bleed valve pins. I am sure that the APU oil access door was closed when the plane left. We were at gate. I checked my work. My lead technician checked my work; and the other lead technician was present to assist me in trying to find a bleed leak causing the overtemp condition.
Original NASA ASRS Text
Title: AN EMB140 HAD THE APU OIL SVC DOOR DEPART THE ACFT IN FLT. APU HAD MAINT PERFORMED AT DEPARTING STATION.
Narrative: AN OIL SVC DOOR FOR THE APU SEPARATED INFLT FROM ACFT. I WORKED ON THE ACFT THAT MORNING TRYING TO FIND AN OVERTEMP CONDITION ON THE APU. I OPENED THAT OIL ACCESS DOOR AND CLOSED IT. MY LEAD TECHNICIAN AND OTHER LEAD TECHNICIAN WERE PRESENT WHILE THE PROCESS WAS TAKING PLACE. I REMOVED THE SILENCER TO GAIN ACCESS TO THE ANTI-SURGE VALVE AND REPLACE IT; I CHKED FOR CONTINUITY ON THE BLEED VALVE PINS. I AM SURE THAT THE APU OIL ACCESS DOOR WAS CLOSED WHEN THE PLANE LEFT. WE WERE AT GATE. I CHKED MY WORK. MY LEAD TECHNICIAN CHKED MY WORK; AND THE OTHER LEAD TECHNICIAN WAS PRESENT TO ASSIST ME IN TRYING TO FIND A BLEED LEAK CAUSING THE OVERTEMP CONDITION.
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.