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A B737-200 cdl on aft engine mount secondary indicator check was found confusing. Now check by maintenance amended to very flight crew change.
| Attributes | |
| ACN | 555543 |
| Time | |
| Date | 200207 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : avl.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician other personnel other |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 555543 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : secondary marker |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | performance deficiency : inspection |
| Supplementary | |
| Problem Areas | Aircraft Maintenance Human Performance Flight Crew Human Performance Chart Or Publication |
| Primary Problem | Chart Or Publication |
Narrative:
Confusion over the last note of the cdl about inspection of the aircraft secondary mount indicator. Flight crew reads that maintenance will verify secondary mount is secure. Maintenance reads that they will verify the mount security, but at regular scheduled inspection period of every 45 cycles per the airworthiness directive requirement. Until further clarification, maintenance will comply with an inspection of the mount at each crew (flight) change.
Original NASA ASRS Text
Title: A B737-200 CDL ON AFT ENG MOUNT SECONDARY INDICATOR CHK WAS FOUND CONFUSING. NOW CHK BY MAINT AMENDED TO VERY FLC CHANGE.
Narrative: CONFUSION OVER THE LAST NOTE OF THE CDL ABOUT INSPECTION OF THE ACFT SECONDARY MOUNT INDICATOR. FLC READS THAT MAINT WILL VERIFY SECONDARY MOUNT IS SECURE. MAINT READS THAT THEY WILL VERIFY THE MOUNT SECURITY, BUT AT REGULAR SCHEDULED INSPECTION PERIOD OF EVERY 45 CYCLES PER THE AIRWORTHINESS DIRECTIVE REQUIREMENT. UNTIL FURTHER CLARIFICATION, MAINT WILL COMPLY WITH AN INSPECTION OF THE MOUNT AT EACH CREW (FLT) CHANGE.
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.