B737-800 captain reported medical diversion after being notified by flight attendants of 'burning pl...

Attributes
ACN	1713242
Time
Date	201912
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.ARTCC
State Reference	US
Environment
Flight Conditions	VMC
Aircraft 1
Make Model Name	B737-800
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Air Conditioning and Pressurization Pack
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Total 2
Events
Anomaly	Aircraft Equipment Problem Less Severe Flight Deck / Cabin / Aircraft Event Illness Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

Narrative:

At cruise; aft flight attendants complained of fumes near aft galley that smelled like burning plastic or electrical fire. No smoke was observed. No passengers complained. The two forward flight attendants went back and confirmed the smell; but were not exposed very long. The two aft flight attendants were exposed longer and complained of throat and chest pain. We elected to turn around and divert to ZZZ. The two aft flight attendants were taken for medical care. No one else was affected. On ground in ZZZ; passengers disembarked. Arff personnel scanned the aft galley area with thermal imaging equipment and noticed nothing overheating. A mechanic searched the aft galley area and smelled nothing with the packs off; but did notice smell when right pack was turned on. Apparently something wrong in right pack causing fumes.

Original NASA ASRS Text

Title: B737-800 Captain reported medical diversion after being notified by flight attendants of 'burning plastic/electrical fire' odor causing physiological issues. Two flight attendants received medical treatment.

Narrative: At cruise; aft flight attendants complained of fumes near aft galley that smelled like burning plastic or electrical fire. No smoke was observed. No passengers complained. The two forward flight attendants went back and confirmed the smell; but were not exposed very long. The two aft flight attendants were exposed longer and complained of throat and chest pain. We elected to turn around and divert to ZZZ. The two aft flight attendants were taken for medical care. No one else was affected. On ground in ZZZ; passengers disembarked. ARFF personnel scanned the aft galley area with thermal imaging equipment and noticed nothing overheating. A mechanic searched the aft galley area and smelled nothing with the packs off; but did notice smell when right pack was turned on. Apparently something wrong in right pack causing fumes.

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.

B737-800 captain reported medical diversion after being notified by flight attendants of 'burning plastic/electrical fire' odor causing physiological issues. Two flight attendants received medical treatment.