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An airbus 320 on completing a test flight and on landing rollout both engine reversers failed to deploy caused by failure to remove reverser lock pins after maintenance.
| Attributes | |
| ACN | 457768 |
| Time | |
| Date | 199912 |
| Day | Fri |
| 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 | A320 |
| 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 |
| Experience | maintenance technician : 15 |
| ASRS Report | 457768 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : far non adherence : published procedure |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : manuals contributing factor : schedule pressure contributing factor : work cards performance deficiency : testing performance deficiency : scheduled maintenance performance deficiency : logbook entry performance deficiency : installation |
| Supplementary | |
| Problem Areas | Company Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
I gave clearance to close #1 and #2 engine fan cowls. Deactivation pins for reversers were still installed. Nobody documented that pins were installed per our maintenance requirements. Reversers did not deploy for test pilots. The card for removing these pins was accomplished prior to the first test flight the day before. The pins were reinstalled without documentation. Our policy for clearance does not look for deactivated engine components.
Original NASA ASRS Text
Title: AN AIRBUS 320 ON COMPLETING A TEST FLT AND ON LNDG ROLLOUT BOTH ENG REVERSERS FAILED TO DEPLOY CAUSED BY FAILURE TO REMOVE REVERSER LOCK PINS AFTER MAINT.
Narrative: I GAVE CLRNC TO CLOSE #1 AND #2 ENG FAN COWLS. DEACTIVATION PINS FOR REVERSERS WERE STILL INSTALLED. NOBODY DOCUMENTED THAT PINS WERE INSTALLED PER OUR MAINT REQUIREMENTS. REVERSERS DID NOT DEPLOY FOR TEST PLTS. THE CARD FOR REMOVING THESE PINS WAS ACCOMPLISHED PRIOR TO THE FIRST TEST FLT THE DAY BEFORE. THE PINS WERE REINSTALLED WITHOUT DOCUMENTATION. OUR POLICY FOR CLRNC DOES NOT LOOK FOR DEACTIVATED ENG COMPONENTS.
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.