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An MD11 passenger seat computer power port wiring was not wired in accordance with standard wiring practices per the maintenance manual.
| Attributes | |
| ACN | 469306 |
| Time | |
| Date | 200004 |
| Day | Sun |
| 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-11 |
| 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 |
| ASRS Report | 469306 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure |
| Independent Detector | other other : person 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : engineering procedure performance deficiency : installation performance deficiency : scheduled maintenance performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Company Chart Or Publication Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Power port 115V 400HZ wiring tie-wrapped to seat frames without suitable guard to prevent chafing by personnel and underseat stowed baggage. Violates standard wiring practices, chapter 20 of maintenance manual. Power port wiring between rows of seats is run in unsuitable seat tracks where spilled beverages and moisture gather. This poses a risk due to potentially damaged insulation. Hazards imposed by power port wiring included: 1) fire, 2) electrocution, and 3) tripping during evacuate/evacuation.
Original NASA ASRS Text
Title: AN MD11 PAX SEAT COMPUTER PWR PORT WIRING WAS NOT WIRED IN ACCORDANCE WITH STANDARD WIRING PRACTICES PER THE MAINT MANUAL.
Narrative: PWR PORT 115V 400HZ WIRING TIE-WRAPPED TO SEAT FRAMES WITHOUT SUITABLE GUARD TO PREVENT CHAFING BY PERSONNEL AND UNDERSEAT STOWED BAGGAGE. VIOLATES STANDARD WIRING PRACTICES, CHAPTER 20 OF MAINT MANUAL. PWR PORT WIRING BTWN ROWS OF SEATS IS RUN IN UNSUITABLE SEAT TRACKS WHERE SPILLED BEVERAGES AND MOISTURE GATHER. THIS POSES A RISK DUE TO POTENTIALLY DAMAGED INSULATION. HAZARDS IMPOSED BY PWR PORT WIRING INCLUDED: 1) FIRE, 2) ELECTROCUTION, AND 3) TRIPPING DURING EVAC.
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.