Narrative:

Flight crew called asking about the MEL 21-xx. Per the MEL; only circuit breaker J-14 can be pulled and collared. Instead; circuit breaker F30 was collared. The involvement included everyone who issued the MEL. The flight crew initialized the question about the MEL. When the call came in; we spoke to the flight crew and immediately grounded the aircraft and called local contract maintenance out. Contract maintenance found the electrical recirculation fan inoperative. Supplemental information from acn 745839 I was in a hurry and made a mistake. I thought it was a correct MEL. On jul/xa/07 aircraft X came in with a second time repeater electrical bay cool recirculation fan circuit breaker popped second time. There was WX in the area and all the planes were late so I tried to defer the recirculation fan. I put MEL 21-X on the aircraft for #1 recirculation fan. It said to collar a circuit breaker and I incorrectly assumed it was the circuit breaker that was popped. The aircraft flew to the outstation with an incorrect MEL. The crew at the outstation reviewed the MEL and determined it was not correct. Contract maintenance changed the recirculation fan. It was technically my fault. I should have taken more time and perhaps reviewed the MEL with someone.

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Original NASA ASRS Text

Title: AN EMB-135 ACFT FLIGHT CREW QUESTIONS A MEL MAINT DEFERRAL AND COLLAR OF COOLING BAY RECIRC FAN CIRCUIT BREAKER.

Narrative: FLT CREW CALLED ASKING ABOUT THE MEL 21-XX. PER THE MEL; ONLY CIRCUIT BREAKER J-14 CAN BE PULLED AND COLLARED. INSTEAD; CIRCUIT BREAKER F30 WAS COLLARED. THE INVOLVEMENT INCLUDED EVERYONE WHO ISSUED THE MEL. THE FLT CREW INITIALIZED THE QUESTION ABOUT THE MEL. WHEN THE CALL CAME IN; WE SPOKE TO THE FLT CREW AND IMMEDIATELY GNDED THE ACFT AND CALLED LCL CONTRACT MAINT OUT. CONTRACT MAINT FOUND THE ELECTRICAL RECIRCULATION FAN INOP. SUPPLEMENTAL INFO FROM ACN 745839 I WAS IN A HURRY AND MADE A MISTAKE. I THOUGHT IT WAS A CORRECT MEL. ON JUL/XA/07 ACFT X CAME IN WITH A SECOND TIME REPEATER ELECTRICAL BAY COOL RECIRCULATION FAN CIRCUIT BREAKER POPPED SECOND TIME. THERE WAS WX IN THE AREA AND ALL THE PLANES WERE LATE SO I TRIED TO DEFER THE RECIRCULATION FAN. I PUT MEL 21-X ON THE ACFT FOR #1 RECIRCULATION FAN. IT SAID TO COLLAR A CIRCUIT BREAKER AND I INCORRECTLY ASSUMED IT WAS THE CIRCUIT BREAKER THAT WAS POPPED. THE ACFT FLEW TO THE OUTSTATION WITH AN INCORRECT MEL. THE CREW AT THE OUTSTATION REVIEWED THE MEL AND DETERMINED IT WAS NOT CORRECT. CONTRACT MAINT CHANGED THE RECIRCULATION FAN. IT WAS TECHNICALLY MY FAULT. I SHOULD HAVE TAKEN MORE TIME AND PERHAPS REVIEWED THE MEL WITH SOMEONE.

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.