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A fokker 100 was dispatched in non compliance with the APU pneumatic bleed valve deferred in conflict with the MEL.
| Attributes | |
| ACN | 457342 |
| Time | |
| Date | 199912 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| 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 | Fokker 100 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance technician : 15 |
| ASRS Report | 457342 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance technician : 15 |
| ASRS Report | 457343 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : non compliance with mel non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : multi function display unit |
| Resolutory Action | flight crew : diverted to another airport |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : manuals performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Chart Or Publication Maintenance Human Performance Aircraft |
| Primary Problem | Chart Or Publication |
| Situations | |
| Publication | MEL |
Narrative:
On dec/xa/99 at XA30, I was assigned to aircraft xyz which had an APU air pressure that was fluctuating. I called maintenance services to get the authority/authorized to placard the APU air bleed valve under 49-3A. I went to the APU compartment and removed the APU panel and checked that the valve was in the closed position. I found the valve in the closed position and removed the connector and tied back the connector. On dec/xb/99 when I returned to work, I found out that aircraft xyz had been diverted to detroit. I found out that the indicating connector was the wrong connector and the electromagnetic control connector should have been removed.
Original NASA ASRS Text
Title: A FOKKER 100 WAS DISPATCHED IN NON COMPLIANCE WITH THE APU PNEUMATIC BLEED VALVE DEFERRED IN CONFLICT WITH THE MEL.
Narrative: ON DEC/XA/99 AT XA30, I WAS ASSIGNED TO ACFT XYZ WHICH HAD AN APU AIR PRESSURE THAT WAS FLUCTUATING. I CALLED MAINT SVCS TO GET THE AUTH TO PLACARD THE APU AIR BLEED VALVE UNDER 49-3A. I WENT TO THE APU COMPARTMENT AND REMOVED THE APU PANEL AND CHKED THAT THE VALVE WAS IN THE CLOSED POS. I FOUND THE VALVE IN THE CLOSED POS AND REMOVED THE CONNECTOR AND TIED BACK THE CONNECTOR. ON DEC/XB/99 WHEN I RETURNED TO WORK, I FOUND OUT THAT ACFT XYZ HAD BEEN DIVERTED TO DETROIT. I FOUND OUT THAT THE INDICATING CONNECTOR WAS THE WRONG CONNECTOR AND THE ELECTROMAGNETIC CTL CONNECTOR SHOULD HAVE BEEN REMOVED.
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.