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A B737-300 left engine thrust reverser was deferred as inoperative per the MEL. On check found deactivation red pins not protruding from engine cowling.
| Attributes | |
| ACN | 704007 |
| Time | |
| Date | 200607 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Weather Elements | other |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer oversight : pic |
| Experience | flight time last 90 days : 140 flight time total : 14000 flight time type : 5000 |
| ASRS Report | 704007 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : non compliance with mel non adherence : published procedure non adherence : far |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | performance deficiency : inspection performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft had #1 thrust reverser deferred inoperative (and deactivated) 2 days prior. Upon exterior preflight I observed that the thrust reverser deactivation pins (red) were not protruding from the engine cowling indicating deactivation. Requested maintenance personnel inspect and they confirmed that it had not been deactivated properly.
Original NASA ASRS Text
Title: A B737-300 L ENG THRUST REVERSER WAS DEFERRED AS INOP PER THE MEL. ON CHK FOUND DEACTIVATION RED PINS NOT PROTRUDING FROM ENG COWLING.
Narrative: ACFT HAD #1 THRUST REVERSER DEFERRED INOP (AND DEACTIVATED) 2 DAYS PRIOR. UPON EXTERIOR PREFLT I OBSERVED THAT THE THRUST REVERSER DEACTIVATION PINS (RED) WERE NOT PROTRUDING FROM THE ENG COWLING INDICATING DEACTIVATION. REQUESTED MAINT PERSONNEL INSPECT AND THEY CONFIRMED THAT IT HAD NOT BEEN DEACTIVATED PROPERLY.
Data retrieved from NASA's ASRS site as of January 2009 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.