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A fokker 100 with a chronic alternate brake bleed-down problem was worked on by 3 shifts with inadequate write-ups and no turnover as to work accomplished.
| Attributes | |
| ACN | 534367 |
| Time | |
| Date | 200201 |
| Day | Wed |
| 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 | Fokker 100 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance technician : 22 |
| ASRS Report | 534367 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 20 |
| ASRS Report | 534369 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation non adherence : far non adherence : published procedure |
| Independent Detector | other other : person 1 |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : briefing contributing factor : manuals performance deficiency : repair performance deficiency : fault isolation |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft X had a chronic problem with alternate brake bleed-down. I had worked on this aircraft 30 days prior to this day. I was working on a job card turnover report from third shift. The other mechanic, lead and foreman all looked at the report and we had a very hard time determining what had been written up. We hooked up the right brake control rods and continued troubleshooting system. I svced the alternate brake accumulator when we noticed no changeover. No help. We then replaced alternate brake changeover valve and svced alternate brake accumulator again. Brake bleed-down was within limits and we filled out the logbook and dispatched aircraft.
Original NASA ASRS Text
Title: A FOKKER 100 WITH A CHRONIC ALTERNATE BRAKE BLEED-DOWN PROB WAS WORKED ON BY 3 SHIFTS WITH INADEQUATE WRITE-UPS AND NO TURNOVER AS TO WORK ACCOMPLISHED.
Narrative: ACFT X HAD A CHRONIC PROB WITH ALTERNATE BRAKE BLEED-DOWN. I HAD WORKED ON THIS ACFT 30 DAYS PRIOR TO THIS DAY. I WAS WORKING ON A JOB CARD TURNOVER RPT FROM THIRD SHIFT. THE OTHER MECH, LEAD AND FOREMAN ALL LOOKED AT THE RPT AND WE HAD A VERY HARD TIME DETERMINING WHAT HAD BEEN WRITTEN UP. WE HOOKED UP THE R BRAKE CTL RODS AND CONTINUED TROUBLESHOOTING SYS. I SVCED THE ALTERNATE BRAKE ACCUMULATOR WHEN WE NOTICED NO CHANGEOVER. NO HELP. WE THEN REPLACED ALTERNATE BRAKE CHANGEOVER VALVE AND SVCED ALTERNATE BRAKE ACCUMULATOR AGAIN. BRAKE BLEED-DOWN WAS WITHIN LIMITS AND WE FILLED OUT THE LOGBOOK AND DISPATCHED ACFT.
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.