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A B757-200 was dispatched in non compliance with the right bleed off light deferred with 1 bulb inoperative when actually the right bleed system was in fact inoperative.
| Attributes | |
| ACN | 550202 |
| Time | |
| Date | 200206 |
| 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 | |
| Operator | common carrier : air carrier |
| Make Model Name | B757 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : maintenance |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | other personnel other |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 550202 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : non compliance with mel non adherence : far non adherence : published procedure |
| Independent Detector | aircraft equipment other aircraft equipment : right bleed off light other other : person 1 |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Factors | |
| Maintenance | contributing factor : manuals contributing factor : schedule pressure performance deficiency : fault isolation performance deficiency : logbook entry performance deficiency : non compliance with legal requirements |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Chart Or Publication |
| Primary Problem | Maintenance Human Performance |
Narrative:
I received a phone call from ZZZ1 for an MEL for bleed air off lights. I questioned the mechanics. If he had any EICAS message or did the pilot report any discrepancy in duct pressure. The mechanic advised that it was only 1 bulb that was out in the light assembly and there was no other discrepancy, the MEL was issued.
Original NASA ASRS Text
Title: A B757-200 WAS DISPATCHED IN NON COMPLIANCE WITH THE R BLEED OFF LIGHT DEFERRED WITH 1 BULB INOP WHEN ACTUALLY THE R BLEED SYS WAS IN FACT INOP.
Narrative: I RECEIVED A PHONE CALL FROM ZZZ1 FOR AN MEL FOR BLEED AIR OFF LIGHTS. I QUESTIONED THE MECHS. IF HE HAD ANY EICAS MESSAGE OR DID THE PLT RPT ANY DISCREPANCY IN DUCT PRESSURE. THE MECH ADVISED THAT IT WAS ONLY 1 BULB THAT WAS OUT IN THE LIGHT ASSEMBLY AND THERE WAS NO OTHER DISCREPANCY, THE MEL WAS ISSUED.
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.