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An EMB140 arrived with the pressurization system deferred as inoperative in 'automatic.' reporter replaced pressure controller and cleared deferred item.
| Attributes | |
| ACN | 711439 |
| Time | |
| Date | 200609 |
| 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 | EMB ERJ 140 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 711439 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : non compliance with mel non adherence : far non adherence : published procedure |
| Independent Detector | 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 : testing performance deficiency : non compliance with legal requirements performance deficiency : fault isolation performance deficiency : logbook entry performance deficiency : installation |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Environmental Factor Chart Or Publication Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
I worked the MEL for the automatic mode being inoperative on the pressure controller. I replaced the controller with a new one. I did not remember to consult the MEL manual to see what maintenance procedures had been taken to MEL the controller by a previous station. The outflow valve hoses had been disconnected. The aircraft landed and could not depressurize through 'automatic' mode. This generated a call to maintenance. This is all the information available to me at this time involving this incident.
Original NASA ASRS Text
Title: AN EMB140 ARRIVED WITH THE PRESSURIZATION SYS DEFERRED AS INOP IN 'AUTO.' RPTR REPLACED PRESSURE CONTROLLER AND CLRED DEFERRED ITEM.
Narrative: I WORKED THE MEL FOR THE AUTO MODE BEING INOP ON THE PRESSURE CONTROLLER. I REPLACED THE CONTROLLER WITH A NEW ONE. I DID NOT REMEMBER TO CONSULT THE MEL MANUAL TO SEE WHAT MAINT PROCS HAD BEEN TAKEN TO MEL THE CONTROLLER BY A PREVIOUS STATION. THE OUTFLOW VALVE HOSES HAD BEEN DISCONNECTED. THE ACFT LANDED AND COULD NOT DEPRESSURIZE THROUGH 'AUTO' MODE. THIS GENERATED A CALL TO MAINT. THIS IS ALL THE INFO AVAILABLE TO ME AT THIS TIME INVOLVING THIS INCIDENT.
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.