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A B767-200 reported a right engine overheat warning in-flight after the right bleed valve was previously deferred locked closed.
| Attributes | |
| ACN | 485499 |
| Time | |
| Date | 200009 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| 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 | B767 Undifferentiated or Other Model |
| 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 : airframe technician : powerplant |
| Experience | maintenance technician : 15 |
| ASRS Report | 485499 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | maintenance : lead technician |
| Qualification | technician : airframe technician : powerplant |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | other other : 969 |
| Consequence | other other other |
| Factors | |
| Maintenance | contributing factor : schedule pressure performance deficiency : non compliance with legal requirements performance deficiency : inspection performance deficiency : repair |
| Supplementary | |
| Problem Areas | Aircraft Environmental Factor Maintenance Human Performance |
| Primary Problem | Maintenance Human Performance |
Narrative:
On sep/xa/00, flight XXX (aircraft xyz) arrived with 3 write-ups. Item #1 required right engine horsepower valve locked closed per MEL 36-22-01. Cleared write-up. I had to use gloves, jacket, and mop heads to avoid getting burned. After performing task, I cleared the mops, ladder and closed engine. Item #2 required the right gear green light indicator relamped. Closed write-up. And item #3 required the left engine to be run checked for bleed light illumination. Cleared write-up. Left engine checked ok. On sep/xb/00, I was told that ship xyz en route to atlanta, had a right engine 'overheat message.' I was also told that upon opening the engine they found a mop head had damaged the overheat detector. I think it's possible that a mop head could have been left behind, even though I cleared the engine and don't recall leaving a mop head behind.
Original NASA ASRS Text
Title: A B767-200 RPTED A R ENG OVERHEAT WARNING INFLT AFTER THE R BLEED VALVE WAS PREVIOUSLY DEFERRED LOCKED CLOSED.
Narrative: ON SEP/XA/00, FLT XXX (ACFT XYZ) ARRIVED WITH 3 WRITE-UPS. ITEM #1 REQUIRED R ENG HORSEPOWER VALVE LOCKED CLOSED PER MEL 36-22-01. CLRED WRITE-UP. I HAD TO USE GLOVES, JACKET, AND MOP HEADS TO AVOID GETTING BURNED. AFTER PERFORMING TASK, I CLRED THE MOPS, LADDER AND CLOSED ENG. ITEM #2 REQUIRED THE R GEAR GREEN LIGHT INDICATOR RELAMPED. CLOSED WRITE-UP. AND ITEM #3 REQUIRED THE L ENG TO BE RUN CHKED FOR BLEED LIGHT ILLUMINATION. CLRED WRITE-UP. L ENG CHKED OK. ON SEP/XB/00, I WAS TOLD THAT SHIP XYZ ENRTE TO ATLANTA, HAD A R ENG 'OVERHEAT MESSAGE.' I WAS ALSO TOLD THAT UPON OPENING THE ENG THEY FOUND A MOP HEAD HAD DAMAGED THE OVERHEAT DETECTOR. I THINK IT'S POSSIBLE THAT A MOP HEAD COULD HAVE BEEN LEFT BEHIND, EVEN THOUGH I CLRED THE ENG AND DON'T RECALL LEAVING A MOP HEAD BEHIND.
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.