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A B737-800 was dispatched in non compliance with a #1 engine fan blade nick blended out per maintenance manual procedures. Blade was dye checked.
| Attributes | |
| ACN | 601908 |
| Time | |
| Date | 200311 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance ground : preflight |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| ASRS Report | 601908 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper documentation maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Independent Detector | other other : 969 |
| Consequence | other other other |
| Factors | |
| Maintenance | contributing factor : tooling performance deficiency : non compliance with legal requirements performance deficiency : logbook entry performance deficiency : inspection performance deficiency : repair |
| Supplementary | |
| Problem Areas | Company Aircraft Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
Called out 30-40 mins before departure. On inspection found damage to be within continued service limits. Blended nick to stop further crew callouts. Inspected blended blade and found to still be within continued service limits. It was my understanding at that time that black light dye penetrant inspection was not required if the blade blending did not exceed the continued service limits. Since we do not stock the equipment to perform fluorescent penetrant inspections and we have blended blades in the past, I felt my reasons for not accomplishing the black light dye inspection were consistent with past actions.
Original NASA ASRS Text
Title: A B737-800 WAS DISPATCHED IN NON COMPLIANCE WITH A #1 ENG FAN BLADE NICK BLENDED OUT PER MAINT MANUAL PROCS. BLADE WAS DYE CHKED.
Narrative: CALLED OUT 30-40 MINS BEFORE DEP. ON INSPECTION FOUND DAMAGE TO BE WITHIN CONTINUED SVC LIMITS. BLENDED NICK TO STOP FURTHER CREW CALLOUTS. INSPECTED BLENDED BLADE AND FOUND TO STILL BE WITHIN CONTINUED SVC LIMITS. IT WAS MY UNDERSTANDING AT THAT TIME THAT BLACK LIGHT DYE PENETRANT INSPECTION WAS NOT REQUIRED IF THE BLADE BLENDING DID NOT EXCEED THE CONTINUED SVC LIMITS. SINCE WE DO NOT STOCK THE EQUIP TO PERFORM FLUORESCENT PENETRANT INSPECTIONS AND WE HAVE BLENDED BLADES IN THE PAST, I FELT MY REASONS FOR NOT ACCOMPLISHING THE BLACK LIGHT DYE INSPECTION WERE CONSISTENT WITH PAST ACTIONS.
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.