349 Air Conditioning (ATA 21) service difficulty reports for the Embraer E190/E1954.6% of all reported difficulties.

Most reported components

  • UNKNOWN 95
  • ACM 90
  • DUCT 19
  • FAN 17
  • HEAT EXCHANGER 16
  • CONTROLLER 14
  • A/C PACK 13
  • FILTER 9
  • BYPASS VALVE 7
  • CHECK VALVE 7
  • BELLOWS 6
  • OUTFLOW VALVE 6
  • AIR FILTER 5
  • CONVERTER 3
  • CIRCUIT CARD 3

Report counts reflect fleet size and reporting activity, not relative safety or reliability. Source: FAA Service Difficulty Reporting System (public domain).

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