Narrative:

During the preflight; maintenance errors were discovered by myself and my first officer. Upon review of the MEL 21-24-01-2; I realized that the maintenance procedure was not accomplished correctly. Maintenance should have pulled and collared circuit breakers J14 and J21 as is listed in the MEL; for the cockpit and cabin recirculation fans. These circuit breakers were not pulled. Further; circuit breakers F4 and F30 were pulled and collared. These circuit breakers are responsible for the recirculation fans in the electronics bay and are listed under the 'elek bay cool' area of the circuit breaker panel. Later; it was discovered that a placard was in the cargo hold that indicated the horizontal net was inoperative. This was not the case.these problems were detected because a thorough preflight was accomplished. There was also no 'time crunch' as this was merely a reposition flight. I worry that if a different pilot received this aircraft and was pushed for time; these mistakes might not have been caught.when questioned about the circuit breakers (circuit breaker's); a mechanic replied; 'oh yeah; we were in a big hurry.' he did not seem to think this mistake was very important. I believe that the mechanics involved didn't fully read the required maintenance procedures. The placard in the cargo hold should have been removed when the cargo net was replaced (there was no history in the logbook of a deferred cargo net; so it probably was replaced some time ago); but I believe that the mechanic involved did not read the maintenance procedure required to clear that deferral or perhaps the procedure does not cover the removal of the placard. Maintenance was called and the issues were dealt with.I believe that this event occurred because the mechanics rushed to get the job done and didn't fully read the maintenance procedures. If pilots are required to use checklists and read MEL's; instead of just relying on a familiarity with a procedure; I believe that mechanics should have the same requirements. An accident or emergency could easily occur because of improper maintenance procedures (forgetting to reset items to normal when clearing a deferral -- like pushing in circuit breakers or removing placards -- or from doing maintenance incorrectly -- like pulling the wrong circuit breaker's). The first link in the chain of events leading to that problem could be broken by having a mechanic read the maintenance procedure as it is performed. Further; I feel that an inadequate level of attention to detail is demonstrated by this event; and that this should be stressed to our mechanics.

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Original NASA ASRS Text

Title: During a preflight on a EMB-145LR; a Captain and First Officer discover numerous MEL deferral maintenance procedure errors involving failure to pull and collar Circuit Breakers; pulling and collaring the wrong Breakers and not removing a cargo net placard. Pilot cited improper maintenance due to failure by Mechanics to follow procedures.

Narrative: During the preflight; maintenance errors were discovered by myself and my First Officer. Upon review of the MEL 21-24-01-2; I realized that the Maintenance Procedure was not accomplished correctly. Maintenance should have pulled and collared Circuit Breakers J14 and J21 as is listed in the MEL; for the cockpit and cabin Recirculation fans. These Circuit Breakers were not pulled. Further; Circuit Breakers F4 and F30 WERE pulled and collared. These Circuit Breakers are responsible for the Recirculation fans in the Electronics Bay and are listed under the 'ELEK BAY COOL' area of the Circuit Breaker panel. Later; it was discovered that a placard was in the cargo hold that indicated the horizontal net was inoperative. This was not the case.These problems were detected because a thorough preflight was accomplished. There was also no 'time crunch' as this was merely a reposition flight. I worry that if a different Pilot received this aircraft and was pushed for time; these mistakes might not have been caught.When questioned about the Circuit Breakers (CB's); a Mechanic replied; 'Oh yeah; we were in a big hurry.' He did not seem to think this mistake was very important. I believe that the Mechanics involved didn't fully read the required Maintenance Procedures. The placard in the cargo hold should have been removed when the cargo net was replaced (there was no history in the Logbook of a deferred cargo net; so it probably was replaced some time ago); but I believe that the Mechanic involved did not read the Maintenance Procedure required to clear that deferral or perhaps the procedure does not cover the removal of the placard. Maintenance was called and the issues were dealt with.I believe that this event occurred because the Mechanics rushed to get the job done and didn't fully read the Maintenance Procedures. If Pilots are required to use Checklists and read MEL's; instead of just relying on a familiarity with a procedure; I believe that Mechanics should have the same requirements. An accident or emergency could easily occur because of improper maintenance procedures (forgetting to reset items to normal when clearing a deferral -- like pushing in circuit breakers or removing placards -- or from doing maintenance incorrectly -- like pulling the wrong CB's). The first link in the Chain of Events leading to that problem could be broken by having a Mechanic read the Maintenance Procedure as it is performed. Further; I feel that an inadequate level of attention to detail is demonstrated by this event; and that this should be stressed to our Mechanics.

Data retrieved from NASA's ASRS site as of April 2012 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.