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A dash 8-100 had an unsvcable 'worn beyond limits' bushing installed in the roll disconnect lever with engineering approval.
| Attributes | |
| ACN | 372158 |
| Time | |
| Date | 199706 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz |
| State Reference | US |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Dash 8-100 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | other |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 372158 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | other other : other |
| ASRS Report | 372157 |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | other other : unspecified |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Air Traffic Incident | other |
Narrative:
Roll system disconnected on touchdown. Plane ferried to maintenance base. Bushings in roll disconnect lever assembly worn beyond limits. Engineering instructed and authority/authorized installation of unsvcable bushings out of another lever assembly which were out of limits, but had less wear than the original bushings. Also, to paint the shaft to take up excess clearance between the bushings and the shaft. Installation of new bushings was deferred for 70 hours. This system has had previous failures on dash 8's worldwide and is pending an airworthiness directive for this problem.
Original NASA ASRS Text
Title: A DASH 8-100 HAD AN UNSVCABLE 'WORN BEYOND LIMITS' BUSHING INSTALLED IN THE ROLL DISCONNECT LEVER WITH ENGINEERING APPROVAL.
Narrative: ROLL SYS DISCONNECTED ON TOUCHDOWN. PLANE FERRIED TO MAINT BASE. BUSHINGS IN ROLL DISCONNECT LEVER ASSEMBLY WORN BEYOND LIMITS. ENGINEERING INSTRUCTED AND AUTH INSTALLATION OF UNSVCABLE BUSHINGS OUT OF ANOTHER LEVER ASSEMBLY WHICH WERE OUT OF LIMITS, BUT HAD LESS WEAR THAN THE ORIGINAL BUSHINGS. ALSO, TO PAINT THE SHAFT TO TAKE UP EXCESS CLRNC BTWN THE BUSHINGS AND THE SHAFT. INSTALLATION OF NEW BUSHINGS WAS DEFERRED FOR 70 HRS. THIS SYS HAS HAD PREVIOUS FAILURES ON DASH 8'S WORLDWIDE AND IS PENDING AN AIRWORTHINESS DIRECTIVE FOR THIS PROB.
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.