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A DC9-30 was dispatched in non compliance with #1 engine thrust reverser amber unlock and blue position lights rendered inoperative in conflict with the MEL special procedures.
| Attributes | |
| ACN | 466930 |
| Time | |
| Date | 200003 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 30 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance ground : parked |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| Experience | maintenance technician : 7 |
| ASRS Report | 466930 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | oversight : supervisor |
| Qualification | technician : airframe technician : powerplant |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : reverser position lights |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other |
| Factors | |
| Maintenance | contributing factor : schedule pressure contributing factor : manuals performance deficiency : non compliance with legal requirements performance deficiency : logbook entry |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
Aircraft comes to gate with: 'left reverser amber light came on after approximately 30 mins of flight. No vibrations or other abnormal indications. Light went out after gear lowered and reverser functioned normal on landing. Light out now.' log page #wvxxy. Under direction of maintenance control wxyxyx clear log page. Pull circuit breakers amber and blue l-hand reverser indications and collar and then go to log page wvxxx and add to remarks that I pulled and collared circuit breakers to the exiting MEL already applied to l-hand reverser, and leave on MEL and return to service. I did this relying on maintenance control's direction.
Original NASA ASRS Text
Title: A DC9-30 WAS DISPATCHED IN NON COMPLIANCE WITH #1 ENG THRUST REVERSER AMBER UNLOCK AND BLUE POS LIGHTS RENDERED INOP IN CONFLICT WITH THE MEL SPECIAL PROCS.
Narrative: ACFT COMES TO GATE WITH: 'L REVERSER AMBER LIGHT CAME ON AFTER APPROX 30 MINS OF FLT. NO VIBRATIONS OR OTHER ABNORMAL INDICATIONS. LIGHT WENT OUT AFTER GEAR LOWERED AND REVERSER FUNCTIONED NORMAL ON LNDG. LIGHT OUT NOW.' LOG PAGE #WVXXY. UNDER DIRECTION OF MAINT CTL WXYXYX CLR LOG PAGE. PULL CIRCUIT BREAKERS AMBER AND BLUE L-HAND REVERSER INDICATIONS AND COLLAR AND THEN GO TO LOG PAGE WVXXX AND ADD TO REMARKS THAT I PULLED AND COLLARED CIRCUIT BREAKERS TO THE EXITING MEL ALREADY APPLIED TO L-HAND REVERSER, AND LEAVE ON MEL AND RETURN TO SVC. I DID THIS RELYING ON MAINT CTL'S DIRECTION.
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.