ATA 21 — Air Conditioning

78,383 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
16032311	PIPE	dhav	Dash 8-400 Dash 8	21	Consumables / Hardware	OEM
1603A0000-02	Ram Heat Exchanger	Honeywell	C340	21	Environmental / Cabin	PMA
1604A0000-02	REHEATER-CONDENSER	—	—	21	Environmental / Cabin
1605A0000-02	EXTRACTOR-WATER	—	—	21	Environmental / Cabin
1606A0000-04	CHAMBER-AIR PLENUM	—	—	21	Environmental / Cabin
1606C0000-01	CHAMBER-AIR PLENUM	—	—	21	Environmental / Cabin
1609A0000-01	Split Duct	Honeywell	C340	21	Pneumatics	PMA
1610A0000-02	ACTUATOR-RAM AIR INLET	—	—	21	Environmental / Cabin
1610A0000-03	ACTUATOR-RAM AIR INLET	—	—	21	Environmental / Cabin
1611A0000-02	ACTUATOR-RAM AIR OUTLET	—	—	21	Environmental / Cabin
1611A0000-03	outlet r a d actuator	zodiac aerospace	—	21	Electromechanical	OEM
1613555	LINE	—	757-200	21	unknown	OEM
1613A0000-02	VALVE-FLOW CONTROL	—	—	21	Environmental / Cabin
1613A0000-03	VALVE-FLOW CONTROL	—	—	21	Environmental / Cabin
1616A0000-03	SELECTOR-TEMPERATURE	—	—	21	Environmental / Cabin
1617A0000-01	HEATER UNIT-ELECTRICAL	—	—	21	Environmental / Cabin
1618A0000-01	CONTROLLER-HEAT	—	—	21	Environmental / Cabin
1618B0000-01	CONTROLLER-HEAT	—	—	21	Environmental / Cabin
1618B0000-02	CONTROLLER-HEAT	—	—	21	Environmental / Cabin
1618C0000-02	CONTROLLER-HEAT	—	—	21	Environmental / Cabin
1618C0000-03	CONTROLLER-HEAT	—	—	21	Environmental / Cabin
1628962101	BRACKET	—	L-1011 TriStar	21	unknown
162972	CONTROLLER	LEAR	—	21	Electromechanical
162A1530-1	holder-orifice plate	Boeing	737-600 737-700+2	21	Pneumatics	OEM
162BL903	CONTROL MODULE	—	737-300 737-400+11	21	unknown	OEM
162T1508-2	valve	Boeing	767-200 767-300+2	21	Structures	OEM
16330	Reservoir/Pump Assy. Windshield Washer	Hamilton Sundstrand	—	21	Electromechanical	PMA
164-00400 Cleveland	Brake Disc	—	C150	21	Wheels & Brakes	OEM
164-08500 Cleveland	Brake Disc	—	—	21	Wheels & Brakes	OEM
164-24200 Cleveland	Brake Disc	—	—	21	Wheels & Brakes	OEM
16400-002	water separator assy	zodiac aerospace	—	21	Environmental / Cabin	OEM
16500 Sht. 1	Fan Assy. Vaneaxial	Hamilton Sundstrand	—	21	Electromechanical	PMA
16500 Sht. 2	Fan Assy. Vaneaxial	Hamilton Sundstrand	—	21	Electromechanical	PMA
165001	FAN	—	L-1011 TriStar	21	unknown	OEM
16510 Sht. 1	Fan Assy. Vaneaxial	Hamilton Sundstrand	—	21	Electromechanical	PMA
16510 Sht. 2	Fan Assy. Vaneaxial	Hamilton Sundstrand	—	21	Electromechanical	PMA
16510-1	Fan Assembly Vaneaxial	Hamilton Sundstrand Power System	—	21	Environmental / Cabin	PMA
16510-2	Fan Assembly Vaneaxial	Hamilton Sundstrand Power System	—	21	Environmental / Cabin	PMA
16510-3	Fan Assembly Vaneaxial	Hamilton Sundstrand Power System	—	21	Environmental / Cabin	PMA
16520 Sht, 2	Fan Assy. Vaneaxial	Hamilton Sundstrand	—	21	Electromechanical	PMA
16520 Sht. 1	Fan Assy. Vaneaxial	Hamilton Sundstrand	—	21	Electromechanical	PMA
16520-1	Fan Assembly Vaneaxial	Hamilton Sundstrand Power System	—	21	Electromechanical	PMA
16520-2	Fan Assembly Vaneaxial	Hamilton Sundstrand Power System	—	21	Environmental / Cabin	PMA
16520-3	Fan Assembly Vaneaxial	Hamilton Sundstrand Power System	—	21	Environmental / Cabin	PMA
16570	Aeromatic Valve Assy. 2.5 inch Lavatory, Forward	Hamilton Sundstrand	—	21	Pneumatics	PMA
16570-1	Aeromatic Valve Assembly 2.5" Lavatory	Whittaker Controls Inc	707 727+1	21	Pneumatics	PMA
16570-2	Aeromatic Valve Assembly 2.5" Lavatory	Whittaker Controls Inc	707 727+1	21	Pneumatics	PMA
16570-3	VALVE	Meggitt North Hollywood, Inc.	707 727+1	21	Environmental / Cabin	OEM
16570-4	VALVE	Meggitt North Hollywood, Inc.	707 727+1	21	Environmental / Cabin	OEM
16570-5	VALVE	Meggitt North Hollywood, Inc.	707 727+1	21	Environmental / Cabin	OEM