Narrative:

[Flight] was operating with a deferred number 2 bleed valve. Due to this; pack number 2 was not operating in flight. On approach into jhm; weather had dropped below minimum required visibility; so a missed approach was executed. At the time; conditions were fairly smooth with occasional light chop and an overcast layer above our altitude. During the missed approach procedure; the flight attendant contacted the flight deck to advise that passengers had been complaining about high temperatures since soon after departure from [departure airport] and were requesting that air conditioning be turned on. Upon checking the cabin temperature gauge; we found it was reading 30 degrees celsius or more despite appropriate settings. The flight attendant also advised that two passengers had vomited. After checking the weather in jhm; we found that it had further deteriorated and a diversion was necessary. I addressed the passengers; stating that we would be diverting to our filed alternate. I also communicated our awareness of the air conditioning problem and that we would be landing in ten minutes. We continued the diversion to [our alternate] and landed safely. After consulting with all crewmembers; I decided that we could not continue further passenger carrying operations safely due to high cabin temperatures in flight. Due to daytime weather conditions in hawai'i; operations with a single pack do not provide adequate cooling to the aircraft interior. This especially true when the pack not operating is the right hand side number 2 unit; as number 2 is primary for cooling the passenger cabin.

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Original NASA ASRS Text

Title: Air carrier flight crew was operating an aircraft with one of two PACKS deferred. The cabin temperature was approximately 30 degrees C. After diverting to their alternate airport; the flight crew refused the aircraft due to high cabin temperatures.

Narrative: [Flight] was operating with a deferred Number 2 Bleed Valve. Due to this; PACK Number 2 was not operating in flight. On approach into JHM; weather had dropped below minimum required visibility; so a missed approach was executed. At the time; conditions were fairly smooth with occasional light chop and an overcast layer above our altitude. During the missed approach procedure; the Flight Attendant contacted the flight deck to advise that passengers had been complaining about high temperatures since soon after departure from [departure airport] and were requesting that air conditioning be turned on. Upon checking the cabin temperature gauge; we found it was reading 30 degrees Celsius or more despite appropriate settings. The Flight Attendant also advised that two passengers had vomited. After checking the weather in JHM; we found that it had further deteriorated and a diversion was necessary. I addressed the passengers; stating that we would be diverting to our filed alternate. I also communicated our awareness of the air conditioning problem and that we would be landing in ten minutes. We continued the diversion to [our alternate] and landed safely. After consulting with all crewmembers; I decided that we could not continue further passenger carrying operations safely due to high cabin temperatures in flight. Due to daytime weather conditions in Hawai'i; operations with a single PACK do not provide adequate cooling to the aircraft interior. This especially true when the PACK not operating is the right hand side Number 2 unit; as Number 2 is primary for cooling the passenger cabin.

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.