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A mechanic reports that after changing the variable stator vane (vsv) block guide assembly and bearing on a vsv bracket for the inboard vsv actuator on a ge cf-6 engine; no rii inspections were accomplished. Questions arose later whether or not the vsv actuator was replaced; which would have required an rii inspection prior to releasing the dc-10 aircraft.
| Attributes | |
| ACN | 974957 |
| Time | |
| Date | 201110 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | DC-10 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Fan Variable Blade Mechanism |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy |
Narrative:
When I got to work at xa:00 pm; myself and mechanic Y and Z were given a non-routine work card for a dc-10 aircraft to change some parts on the number 1 engine variable stator vane (vsv) actuator; inboard side. The parts we changed were vsv block guide assembly and bearing on the vsv bracket. Before we started the job we got with quality assurance (qa) at the hangar for clarification of the work being performed if it was an rii or not. We also had the rii card out of the logbook when we talked to qa inspector X about changing these parts. Inspector X said it was not an rii item. Company rii card reference vsv/vbv major repair/alt (alteration) box was not checked to be a rii; so we went ahead and replaced the parts reference the ge cf-6-6 maintenance manual (MM) 72-30-02. I removed the bracket and gave it to structures [airframe mechanics] to stake in a new bearing. When they returned the bracket we reinstalled it; but never breached the integrity of the system. It appears someone mistakenly believed the vsv actuator was replaced; when in fact it was not. Suggest performing a more thorough preliminary investigation.
Original NASA ASRS Text
Title: A Mechanic reports that after changing the Variable Stator Vane (VSV) Block Guide Assembly and bearing on a VSV bracket for the inboard VSV Actuator on a GE CF-6 engine; no RII Inspections were accomplished. Questions arose later whether or not the VSV Actuator was replaced; which would have required an RII Inspection prior to releasing the DC-10 aircraft.
Narrative: When I got to work at XA:00 pm; myself and Mechanic Y and Z were given a Non-Routine Work Card for a DC-10 aircraft to change some parts on the Number 1 engine Variable Stator Vane (VSV) Actuator; inboard side. The parts we changed were VSV Block Guide Assembly and bearing on the VSV bracket. Before we started the job we got with Quality Assurance (QA) at the hangar for clarification of the work being performed if it was an RII or not. We also had the RII Card out of the logbook when we talked to QA Inspector X about changing these parts. Inspector X said it was not an RII Item. Company RII Card reference VSV/VBV Major Repair/Alt (Alteration) box was not checked to be a RII; so we went ahead and replaced the parts reference the GE CF-6-6 Maintenance Manual (MM) 72-30-02. I removed the bracket and gave it to Structures [Airframe Mechanics] to stake in a new bearing. When they returned the bracket we reinstalled it; but never breached the integrity of the system. It appears someone mistakenly believed the VSV Actuator was replaced; when in fact it was not. Suggest performing a more thorough preliminary investigation.
Data retrieved from NASA's ASRS site as of April 2012 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.