EMB145 captain reports being dispatched with an inoperative number one pack and experiencing cockpit...

Narrative:

We were operating with pack 1 MEL'd. As a result; the heat in the cockpit became overwhelming and reached temperatures of 41 degrees C (106 degrees F). We leveled off at 9;000 ft and briefly were distracted as a result of the extreme temperature and accelerated to approximately 272 KTS. We immediately recognized the overspeed and corrected back to 250 KTS. We messaged dispatch with the heat issue and recommended the aircraft be taken out of service until the pack was fixed...we received the response; 'how are the passengers; are they comfy.' we continued the flight without incident. On the ground; I contacted maintenance control to possibly coordinate a proactive aircraft swap for the next crew. I informed them that MEL's such as these should not be allowed in these types of conditions as the heat became unbearable. Again; MEL'd packs should not be acceptable this time of year in extreme heat situations.

Original NASA ASRS Text

Title: EMB145 Captain reports being dispatched with an inoperative number one pack and experiencing cockpit temperatures up to 41 degrees C. During level off at 9;000 FT; airspeed is allowed to accelerate above 250 KTS.

Narrative: We were operating with PACK 1 MEL'd. As a result; the heat in the cockpit became overwhelming and reached temperatures of 41 degrees C (106 degrees F). We leveled off at 9;000 FT and briefly were distracted as a result of the extreme temperature and accelerated to approximately 272 KTS. We immediately recognized the overspeed and corrected back to 250 KTS. We messaged Dispatch with the heat issue and recommended the aircraft be taken out of service until the PACK was fixed...we received the response; 'how are the passengers; are they comfy.' We continued the flight without incident. On the ground; I contacted Maintenance Control to possibly coordinate a proactive aircraft swap for the next crew. I informed them that MEL's such as these should not be allowed in these types of conditions as the heat became unbearable. Again; MEL'd PACKS should not be acceptable this time of year in extreme heat situations.

Data retrieved from NASA's ASRS site as of July 2013 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.

Attributes
ACN	1017945
Time
Date	201206
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.TRACON
State Reference	US
Aircraft 1
Make Model Name	EMB ERJ 145 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Air Conditioning and Pressurization Pack
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural FAR Deviation - Procedural Published Material / Policy Deviation - Speed All Types Inflight Event / Encounter Weather / Turbulence

EMB145 captain reports being dispatched with an inoperative number one pack and experiencing cockpit temperatures up to 41 degrees C. During level off at 9;000 ft; airspeed is allowed to accelerate above 250 KTS.