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A B727-200 pressurization control panel was replaced and tested using the maintenance manual for pressurization system test as no remove and replace manual reference exists for control panel replacement.
| Attributes | |
| ACN | 461418 |
| Time | |
| Date | 200001 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Dusk |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| 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 : powerplant technician : fcc technician : airframe |
| Experience | maintenance avionics : 32 |
| ASRS Report | 461418 |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper documentation |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : engineering procedure contributing factor : manuals performance deficiency : testing |
| Supplementary | |
| Problem Areas | Company Maintenance Human Performance Aircraft |
| Primary Problem | Company |
Narrative:
I replaced a pressurization control panel on a B727 on jan/xa/00. Someone has claimed that the control panel was replaced without a proper maintenance manual remove and replace procedure. There is no remove and replace procedure for this in the manual. I used reference maintenance manual 21-30-04, which is the control system test, which I accomplished after installation. I have done this task and signed it with this reference 3 or 4 times each yr for 32 yrs. This is the first time it has ever been questioned.
Original NASA ASRS Text
Title: A B727-200 PRESSURIZATION CTL PANEL WAS REPLACED AND TESTED USING THE MAINT MANUAL FOR PRESSURIZATION SYS TEST AS NO REMOVE AND REPLACE MANUAL REF EXISTS FOR CTL PANEL REPLACEMENT.
Narrative: I REPLACED A PRESSURIZATION CTL PANEL ON A B727 ON JAN/XA/00. SOMEONE HAS CLAIMED THAT THE CTL PANEL WAS REPLACED WITHOUT A PROPER MAINT MANUAL REMOVE AND REPLACE PROC. THERE IS NO REMOVE AND REPLACE PROC FOR THIS IN THE MANUAL. I USED REF MAINT MANUAL 21-30-04, WHICH IS THE CTL SYS TEST, WHICH I ACCOMPLISHED AFTER INSTALLATION. I HAVE DONE THIS TASK AND SIGNED IT WITH THIS REF 3 OR 4 TIMES EACH YR FOR 32 YRS. THIS IS THE FIRST TIME IT HAS EVER BEEN QUESTIONED.
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.