A flight crew was notified after the fact that they flew a CRJ700 with an incorrect MEL applied to t...

Attributes
ACN	915249
Time
Date	201010
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 700 ER/LR (CRJ700)
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Component
Aircraft Component	Pneumatic Valve/Bleed Valve
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural MEL Deviation - Procedural Published Material / Policy

Narrative:

During the preflight phase while checking paperwork I failed to realize that maintenance control incorrectly applied MEL 36-21-06 for the left bleed loop; rather than MEL 36-11-02 for the prsov and the associated left bleed caution message. Due to the incorrect MEL being applied; I flew 2 legs without the malfunctioning left prsov being secured closed and appropriated performance penalties applied; as required to comply with the correct MEL procedure. I was notified via email. Even though I reviewed the history in the maintenance log; I did not carefully investigate; and compare the initial write up from the mechanic can with what maintenance control had deferred. Double check and make sure the correct item is being deferred by maintenance control. Maybe by going back to the maintenance log and trying to find the initial write up about the deferred item in question; what EICAS message or previous event led to the initial write up; comparing it and checking it to see if it is the correct item instead of going directly to the MEL number from the dispatch release.

Original NASA ASRS Text

Title: A flight crew was notified after the fact that they flew a CRJ700 with an incorrect MEL applied to the HPSOV so that the valve was not secured closed and penalties taken. The MEL for the bleed loop was correctly applied but was not applicable to the problem.

Narrative: During the preflight phase while checking paperwork I failed to realize that Maintenance Control incorrectly applied MEL 36-21-06 for the Left Bleed Loop; rather than MEL 36-11-02 for the PRSOV and the associated L Bleed Caution MSG. Due to the incorrect MEL being applied; I flew 2 legs without the malfunctioning left PRSOV being secured closed and appropriated performance penalties applied; as required to comply with the correct MEL procedure. I was notified via email. Even though I reviewed the history in the maintenance log; I did not carefully investigate; and compare the initial write up from the mechanic can with what Maintenance Control had deferred. Double check and make sure the correct item is being deferred by Maintenance Control. Maybe by going back to the maintenance log and trying to find the initial write up about the deferred item in question; what EICAS message or previous event led to the initial write up; comparing it and checking it to see if it is the correct item instead of going directly to the MEL number from the dispatch release.

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.

A flight crew was notified after the fact that they flew a CRJ700 with an incorrect MEL applied to the hpsov so that the valve was not secured closed and penalties taken. The MEL for the bleed loop was correctly applied but was not applicable to the problem.