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A dehavilland dash 8 during removal of the flight compartment fan blanking plates were installed on the wrong ducts causing loss of cooling air.
| Attributes | |
| ACN | 532609 |
| Time | |
| Date | 200111 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Dash 8-100 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance technician : 5 |
| ASRS Report | 532609 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other other : person 2 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : work cards performance deficiency : repair performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Aircraft Chart Or Publication Maintenance Human Performance |
| Primary Problem | Chart Or Publication |
Narrative:
While performing removal of the flight compartment fan, I erred in doing step xyz. The blanking plates were installed on the wrong distribution ducts. The ones mentioned in step xyz were left open and caused a loss of cooling air to the flight compartment. The wrongfully placed blanking plates were removed by another mechanic prior to release. A more descriptive text or an illustration along with the work card would prevent it from happening again. I am helping revise the work card to correct the problem.
Original NASA ASRS Text
Title: A DEHAVILLAND DASH 8 DURING REMOVAL OF THE FLT COMPARTMENT FAN BLANKING PLATES WERE INSTALLED ON THE WRONG DUCTS CAUSING LOSS OF COOLING AIR.
Narrative: WHILE PERFORMING REMOVAL OF THE FLT COMPARTMENT FAN, I ERRED IN DOING STEP XYZ. THE BLANKING PLATES WERE INSTALLED ON THE WRONG DISTRIBUTION DUCTS. THE ONES MENTIONED IN STEP XYZ WERE LEFT OPEN AND CAUSED A LOSS OF COOLING AIR TO THE FLT COMPARTMENT. THE WRONGFULLY PLACED BLANKING PLATES WERE REMOVED BY ANOTHER MECH PRIOR TO RELEASE. A MORE DESCRIPTIVE TEXT OR AN ILLUSTRATION ALONG WITH THE WORK CARD WOULD PREVENT IT FROM HAPPENING AGAIN. I AM HELPING REVISE THE WORK CARD TO CORRECT THE PROB.
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.