Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Communication Breakdown
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural MEL / CDL; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Returned To Gate; General Release Refused / Aircraft Not Accepted; General Maintenance Action; General Flight Cancelled / Delayed
MEL; Procedure; Human Factors; Aircraft
Aircraft had left ram air door placarded with MEL 21-4.  On recall after pushback; left air conditioning and pack light illuminated. Returned to gate and ZZZ Maintenance signed off logbook allowing warning lights on ground when MEL specifically only allows lights in flight. I refused aircraft.
B737 Captain reported they refused aircraft after Maintenance misapplied an MEL to the left ram air door.