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A B767-300ER was dispatched in non compliance after modification to the flight recorder system rendered the digital flight data acquisition unit inoperative.
| Attributes | |
| ACN | 459731 |
| Time | |
| Date | 199912 |
| Day | Sat |
| 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 | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| ASRS Report | 459731 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : powerplant |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : flt data aq unit warning |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : engineering procedure performance deficiency : scheduled maintenance performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Chart Or Publication Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
During maintenance base visit of aircraft xyz, I performed modification of flight recorder system, engineering change order wxxx, card 002, page 3 of 3. After aircraft left ZZZ and discussion with fellow mechanics on any problems, we realized that there could be an aircraft out of confign in the system. Because of our shift work, the parties involved got together to finally discuss problem after aircraft departed.
Original NASA ASRS Text
Title: A B767-300ER WAS DISPATCHED IN NON COMPLIANCE AFTER MODIFICATION TO THE FLT RECORDER SYS RENDERED THE DIGITAL FLT DATA ACQUISITION UNIT INOP.
Narrative: DURING MAINT BASE VISIT OF ACFT XYZ, I PERFORMED MODIFICATION OF FLT RECORDER SYS, ENGINEERING CHANGE ORDER WXXX, CARD 002, PAGE 3 OF 3. AFTER ACFT LEFT ZZZ AND DISCUSSION WITH FELLOW MECHS ON ANY PROBS, WE REALIZED THAT THERE COULD BE AN ACFT OUT OF CONFIGN IN THE SYS. BECAUSE OF OUR SHIFT WORK, THE PARTIES INVOLVED GOT TOGETHER TO FINALLY DISCUSS PROB AFTER ACFT DEPARTED.
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.