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A beech 1900D returned to the field due to an elevator trim problem caused by incorrect installation of the pedestal mounted trim wheel.
| Attributes | |
| ACN | 462583 |
| Time | |
| Date | 200002 |
| Day | Sun |
| 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 | Beech 1900 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | ground : maintenance ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Qualification | technician : airframe technician : powerplant |
| Experience | maintenance lead technician : 3 maintenance technician : 18 |
| ASRS Report | 462583 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : inspector |
| Qualification | technician : airframe technician : powerplant technician : inspection authority |
| ASRS Report | 462585 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : manuals performance deficiency : scheduled maintenance performance deficiency : repair performance deficiency : logbook entry performance deficiency : installation performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Chart Or Publication Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
On jan/sun/00, during a 200 hour check, aircraft xyz was found to have a power lever that went past the idle stop when it was in idle. During the course of the repairs to the power lever, the elevator trim wheel was removed. On feb/mon/00, I was reinstalling items that had been removed during the course of the repair and having an inspector look at the areas in question. I remember installing the trim wheel and checking the deflections. In accordance with the beech maintenance manual sections 27-30-05 and 27-30-08, all parameters were within specifications to the best of my knowledge. That was the last time that I worked in that area or on that aircraft until feb/sun/00. I was told that on feb/sat/00, the aforementioned aircraft did an air return for an elevator trim malfunction. The corrective action was to reposition the trim control wheel, verify tab deflection and operationally test the trim control system.
Original NASA ASRS Text
Title: A BEECH 1900D RETURNED TO THE FIELD DUE TO AN ELEVATOR TRIM PROB CAUSED BY INCORRECT INSTALLATION OF THE PEDESTAL MOUNTED TRIM WHEEL.
Narrative: ON JAN/SUN/00, DURING A 200 HR CHK, ACFT XYZ WAS FOUND TO HAVE A PWR LEVER THAT WENT PAST THE IDLE STOP WHEN IT WAS IN IDLE. DURING THE COURSE OF THE REPAIRS TO THE PWR LEVER, THE ELEVATOR TRIM WHEEL WAS REMOVED. ON FEB/MON/00, I WAS REINSTALLING ITEMS THAT HAD BEEN REMOVED DURING THE COURSE OF THE REPAIR AND HAVING AN INSPECTOR LOOK AT THE AREAS IN QUESTION. I REMEMBER INSTALLING THE TRIM WHEEL AND CHKING THE DEFLECTIONS. IN ACCORDANCE WITH THE BEECH MAINT MANUAL SECTIONS 27-30-05 AND 27-30-08, ALL PARAMETERS WERE WITHIN SPECS TO THE BEST OF MY KNOWLEDGE. THAT WAS THE LAST TIME THAT I WORKED IN THAT AREA OR ON THAT ACFT UNTIL FEB/SUN/00. I WAS TOLD THAT ON FEB/SAT/00, THE AFOREMENTIONED ACFT DID AN AIR RETURN FOR AN ELEVATOR TRIM MALFUNCTION. THE CORRECTIVE ACTION WAS TO REPOSITION THE TRIM CTL WHEEL, VERIFY TAB DEFLECTION AND OPERATIONALLY TEST THE TRIM CTL SYS.
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.