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An MD80 arrived at ZZZ with the left APU access door missing with evidence of 1 cam lock fastener being locked.
| Attributes | |
| ACN | 563526 |
| Time | |
| Date | 200210 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| ASRS Report | 563526 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Independent Detector | other other : person 3 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other other |
| Factors | |
| Maintenance | performance deficiency : inspection performance deficiency : installation performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Upon arrival in ZZZ, we were told by a mechanic that the APU access door was missing. Upon inspection, the door had been ripped from the hinge, but the aft most cam lock (zeus screw lock) was still engaged. This screw is located on the door itself so at least this one fastener was engaged when the door ripped off. The logbook showed that an inspection by maintenance the night before this flight would have had them check the APU oil level. I did the walkaround and know for certain that the panel was closed. I did not check each individual screw lock. I know the panel was closed because I always inspect the tailskid for safety wire, and approach it from the left side. It would have been impossible for that panel to be open and for me not to have seen it.
Original NASA ASRS Text
Title: AN MD80 ARRIVED AT ZZZ WITH THE L APU ACCESS DOOR MISSING WITH EVIDENCE OF 1 CAM LOCK FASTENER BEING LOCKED.
Narrative: UPON ARR IN ZZZ, WE WERE TOLD BY A MECH THAT THE APU ACCESS DOOR WAS MISSING. UPON INSPECTION, THE DOOR HAD BEEN RIPPED FROM THE HINGE, BUT THE AFT MOST CAM LOCK (ZEUS SCREW LOCK) WAS STILL ENGAGED. THIS SCREW IS LOCATED ON THE DOOR ITSELF SO AT LEAST THIS ONE FASTENER WAS ENGAGED WHEN THE DOOR RIPPED OFF. THE LOGBOOK SHOWED THAT AN INSPECTION BY MAINT THE NIGHT BEFORE THIS FLT WOULD HAVE HAD THEM CHK THE APU OIL LEVEL. I DID THE WALKAROUND AND KNOW FOR CERTAIN THAT THE PANEL WAS CLOSED. I DID NOT CHK EACH INDIVIDUAL SCREW LOCK. I KNOW THE PANEL WAS CLOSED BECAUSE I ALWAYS INSPECT THE TAILSKID FOR SAFETY WIRE, AND APCH IT FROM THE L SIDE. IT WOULD HAVE BEEN IMPOSSIBLE FOR THAT PANEL TO BE OPEN AND FOR ME NOT TO HAVE SEEN IT.
Data retrieved from NASA's ASRS site as of July 2007 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.