ATA 21 — Air Conditioning

83,278 parts classified under this chapter

Reliability rollup

100%Median scrap propensity

4,868 parts · 17,977 SDR reports

From FAA Service Difficulty Reports

Part Number	Description	Manufacturer	Airframe	ATA	Category	Status
(285T0078-15)	Printed Circuit Assy	—	—	21	—	OEM
(285T0078-15)	Printed Circuit Assy	—	—	21	—	OEM
(285T0078-16)	Printed Circuit Assy	—	—	21	—	OEM
(285T0078-16)	Printed Circuit Assy	—	—	21	—	OEM
(285T0093-11)	Printed Circuit Assy	—	—	21	—	OEM
(285T0093-11)	Printed Circuit Assy	—	—	21	—	OEM
(285T0094-6)	Printed Circuit Assy	—	—	21	—	OEM
(285T0094-6)	Printed Circuit Assy	—	—	21	—	OEM
(285T0095-8)	Printed Circuit Assy - Equipment Cooling Indication	—	—	21	—	OEM
(285T0095-8)	Printed Circuit Assy - Equipment Cooling Indication	—	—	21	—	OEM
(285T0177-1)	Current Sensor Assy	—	—	21	—	OEM
(285T0177-1)	Current Sensor Assy	—	—	21	—	OEM
(285T0177-3)	Current Sensor Assy	—	747-8F	21	—	OEM
(285T1150-2)	Module Assy	—	—	21	—	OEM
(285T1150-3)	Module Assy	—	—	21	—	OEM
(285T1150-3)	Module Assy	—	—	21	—	OEM
(285T1198-102)	PW Assy - IFE Cooling Card	—	767-300	21	—	OEM
(285U0035-202)	Printed Circuit Assy - Equipment Cooling Control	—	—	21	—	OEM
(285U0035-211)	Printed Circuit Assy - Freighter Equipment Cooling Control	—	—	21	—	OEM
(285U0035-211)	Printed Circuit Assy - Freighter Equipment Cooling Control	—	—	21	—	OEM
(285U0036-203)	P.C. Assy	—	—	21	—	OEM
(285U0036-211)	Printed Circuit Assy - Environmental Control System and Miscellaneous	—	—	21	—	OEM
(285U0036-211)	Printed Circuit Assy - Environmental Control System and Miscellaneous	—	—	21	—	OEM
(312N5102-32)	Tube Assy	—	—	21	—	OEM
(366-21-23-A1278-109)	Tube Assy	—	—	21	—	OEM
(366-21-23-A1278-111)	Tube Assy	—	—	21	—	OEM
(366-21-23-A1278-113)	Tube Assy	—	—	21	—	OEM
(366-21-23-A1278-117)	Tube Assy	—	—	21	—	OEM
(366-21-23-A1278-123)	Tube Assy	—	—	21	—	OEM
(366-21-23-A1278-125)	Tube Assy	—	—	21	—	OEM
(366-21-23-A1278-127)	Tube Assy	—	—	21	—	OEM
(366-21-23-A1278-129)	Tube Assy	—	—	21	—	OEM
(366-21-23-A1278-201)	Tube	—	—	21	—	OEM
(366-21-23-A1278-203)	Tube	—	—	21	—	OEM
(366-21-23-A1278-213)	Tube	—	—	21	—	OEM
(366-21-23-A1278-277)	Tube	—	—	21	—	OEM
(366-21-28-A1278-107)	Tube Assy	—	—	21	—	OEM
(366-21-28-A1278-107)	Tube Assy	—	—	21	—	OEM
(366-21-28-A1746-101)	Tube Assy	—	—	21	—	OEM
(366-21-28-A1746-103)	Tube Assy	—	—	21	—	OEM
(366-21-28-A1746-105)	Tube Assy	—	—	21	—	OEM
(366-21-28-A1746-107)	Tube Assy	—	—	21	—	OEM
(366-21-28-A1746-109)	Tube Assy	—	—	21	—	OEM
(366-21-28-A1746-111)	Tube Assy	—	—	21	—	OEM
(366-21-28-A1746-113)	Tube Assy	—	—	21	—	OEM
(366-21-28-A1746-201)	Tube	—	—	21	—	OEM
(366-21-28-A1746-207)	Tube	—	—	21	—	OEM
(366-21-28-A1777-201)	Tube	—	—	21	—	OEM
(366-21-28-A1906-105)	Tube Assy	—	—	21	—	OEM
(366-21-28-A1906-107)	Tube Assy	—	—	21	—	OEM