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A B727-200 was dispatched and operated in non compliance with the #1 engine missing a first stage fan blade retainer.
| Attributes | |
| ACN | 456936 |
| Time | |
| Date | 199912 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Dusk |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | None |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : airframe technician : fcc technician : powerplant technician : repairman |
| Experience | maintenance technician : 34 |
| ASRS Report | 456936 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Events | |
| Anomaly | aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : published procedure |
| Independent Detector | other other : 969 |
| Consequence | faa : investigated other |
| Factors | |
| Maintenance | contributing factor : lighting contributing factor : weather performance deficiency : inspection performance deficiency : installation performance deficiency : repair |
| Supplementary | |
| Problem Areas | Environmental Factor Aircraft Weather Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
This incident occurred on dec/sat/97, and dec/sun/97. 3 mechanics (including myself) and 1 inspector were assigned to replace the first and second stage fan on air carrier aircraft xyz (B727) #1 engine (JT8) on the ramp at ZZZ. The engine subsequently was removed for overhaul this month after 3200 cycles. During overhaul it was discovered that a retainer was not installed on the first stage fan. The process of installing and securing the fan takes 2 mechanics to torque the tie rod nuts and witnessed by an inspector. I signed the items for installing the fan. Therefore, I take full responsibility, assuming no maintenance was performed within that time.
Original NASA ASRS Text
Title: A B727-200 WAS DISPATCHED AND OPERATED IN NON COMPLIANCE WITH THE #1 ENG MISSING A FIRST STAGE FAN BLADE RETAINER.
Narrative: THIS INCIDENT OCCURRED ON DEC/SAT/97, AND DEC/SUN/97. 3 MECHS (INCLUDING MYSELF) AND 1 INSPECTOR WERE ASSIGNED TO REPLACE THE FIRST AND SECOND STAGE FAN ON ACR ACFT XYZ (B727) #1 ENG (JT8) ON THE RAMP AT ZZZ. THE ENG SUBSEQUENTLY WAS REMOVED FOR OVERHAUL THIS MONTH AFTER 3200 CYCLES. DURING OVERHAUL IT WAS DISCOVERED THAT A RETAINER WAS NOT INSTALLED ON THE FIRST STAGE FAN. THE PROCESS OF INSTALLING AND SECURING THE FAN TAKES 2 MECHS TO TORQUE THE TIE ROD NUTS AND WITNESSED BY AN INSPECTOR. I SIGNED THE ITEMS FOR INSTALLING THE FAN. THEREFORE, I TAKE FULL RESPONSIBILITY, ASSUMING NO MAINT WAS PERFORMED WITHIN THAT TIME.
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.