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|
Attributes | |
ACN | 710938 |
Time | |
Date | 200609 |
Local Time Of Day | 0601 To 1200 |
Place | |
Locale Reference | airport : zzz.airport |
State Reference | US |
Altitude | agl single value : 0 |
Aircraft 1 | |
Operator | common carrier : air carrier |
Make Model Name | A321 |
Operating Under FAR Part | Part 121 |
Flight Phase | ground : maintenance |
Person 1 | |
Affiliation | company : air carrier |
Function | maintenance : technician |
Qualification | technician : airframe technician : powerplant |
Experience | maintenance technician : 26 |
ASRS Report | 710938 |
Person 2 | |
Affiliation | company : air carrier |
Function | maintenance : technician |
Events | |
Anomaly | aircraft equipment problem : critical |
Independent Detector | aircraft equipment other aircraft equipment : egt other flight crewa other flight crewb |
Resolutory Action | flight crew : diverted to another airport |
Consequence | other |
Supplementary | |
Problem Areas | Maintenance Human Performance Aircraft Chart Or Publication |
Primary Problem | Aircraft |
Narrative:
On sep/wed/06; we were assigned air carrier X in the line maintenance hangar. Management informed us that engine #2 was to be replaced. At that time we pulled up paperwork for engine change. We then proceeded to follow the paperwork and disconnected parts to facilitate removal of the engine. After lunch we then returned to work on the engine. We were in the process of nose cowl removal. After disconnecting everything from the nose cowl and installing the harness we were informed by management that the engine might not come off. We then were told to prepare the engine for inspection to borescope the engine. While following the paperwork for the borescope we found the bottom half of the bleed valves open while the top half were closed. We then found the flex shaft between valves #10 and #11 broken. The borescope found no internal damage.
Original NASA ASRS Text
Title: AN A321 SHUT DOWN #2 ENG DUE TO HIGH EXHAUST GAS TEMP. FOUND VARIABLE BLEED VALVES NUMBER 10 AND NUMBER 11 STUCK OPEN DUE TO THE FLEXIBLE DRIVE SHAFT BROKEN.
Narrative: ON SEP/WED/06; WE WERE ASSIGNED ACR X IN THE LINE MAINT HANGAR. MGMNT INFORMED US THAT ENG #2 WAS TO BE REPLACED. AT THAT TIME WE PULLED UP PAPERWORK FOR ENG CHANGE. WE THEN PROCEEDED TO FOLLOW THE PAPERWORK AND DISCONNECTED PARTS TO FACILITATE REMOVAL OF THE ENG. AFTER LUNCH WE THEN RETURNED TO WORK ON THE ENG. WE WERE IN THE PROCESS OF NOSE COWL REMOVAL. AFTER DISCONNECTING EVERYTHING FROM THE NOSE COWL AND INSTALLING THE HARNESS WE WERE INFORMED BY MGMNT THAT THE ENG MIGHT NOT COME OFF. WE THEN WERE TOLD TO PREPARE THE ENG FOR INSPECTION TO BORESCOPE THE ENG. WHILE FOLLOWING THE PAPERWORK FOR THE BORESCOPE WE FOUND THE BOTTOM HALF OF THE BLEED VALVES OPEN WHILE THE TOP HALF WERE CLOSED. WE THEN FOUND THE FLEX SHAFT BTWN VALVES #10 AND #11 BROKEN. THE BORESCOPE FOUND NO INTERNAL DAMAGE.
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.