Dispatcher reported aircraft was released with both ignition system a and system B on MEL in error.

Attributes
ACN	1714482
Time
Date	201911
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Night
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	Ignition System
Person 1
Function	Dispatcher
Qualification	Dispatch Dispatcher
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural MEL Deviation - Procedural Published Material / Policy

Narrative:

Apparently maintenance control by their mistake while doing the dispatch release and sending it out maintenance control put in both mels 74-xx-xx-xx ; only one can be meled but not both.during the time I was working on the release for this flight I believe there was only one MEL 74-xx-xx-xx then I clicked on the rlse button again and somehow maintenance control put in both MEL for the rh and lh ignition system a. I failed to notice this and the release was sent.

Original NASA ASRS Text

Title: Dispatcher reported aircraft was released with both ignition system A and system B on MEL in error.

Narrative: Apparently Maintenance Control by their mistake while doing the Dispatch Release and sending it out Maintenance Control put in both MELS 74-XX-XX-XX ; Only one can be MELed but not both.During the time I was working on the release for this flight I believe there was only one MEL 74-XX-XX-XX then I clicked on the RLSE button again and somehow Maintenance Control put in both MEL for the RH and LH Ignition SYS A. I failed to notice this and the release was sent.

Data retrieved from NASA's ASRS site 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.