21171803

CONTROLLER

OEM

Specifications

Part Number
21171803
Manufacturer
Honeywell
ATA ChapterMaintenance system chapter
21 — Air Conditioning
CapabilitySystem area (hydraulics, avionics, landing gear…)
Avionics / Electronics
Inventory ClassRotable, expendable, or consumable
Rotable
Certification
OEM
Aircraft Category
Unknown
Criticality
Unknown

Service Reliabilityfrom FAA SDR (Service Difficulty Reports)

100%
Scrap Propensity (SDR-derived)
medium confidence
SDR reports
20
Replace events
20
Repair events
0
K-code events
0
Reporting window 1996-04-28 – 2014-08-04Dominant chapter ATA 21

Directional indicator only. Reflects what operators reported to the FAA when a difficulty was logged — not a fleet-normalized failure rate or a cost-based BER. Use alongside operator-specific data.

Airframe Applicability(7)

DC-9DC-9-50MD-81MD-82MD-83MD-87MD-88

Data Sources(1)

Quick Facts

Airframes7 applicable
AlternatesNone recorded
ClassRotable
CriticalityUnknown
CategoryUnknown

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