285N002821
SMOKE DETECTOR
Specifications
- Part Number
- 285N002821
- Manufacturer
- Boeing
- ATA ChapterMaintenance system chapter
- 26 — Fire ProtectionField reports: 26 (95%) · 77 (5%) — 21 reports
- CapabilitySystem area (hydraulics, avionics, landing gear…)
- Safety / Emergency
- Inventory ClassRotable, expendable, or consumable
- Rotable
- Certification
- OEM
- Aircraft Category
- Unknown
- Criticality
- Critical
- Life & ShelfTypical service/shelf life — verify against OEM data
- Smoke Detectoron-conditionTypical: On-condition; some 10-yr calendar— planning value, not this unit's certified limit
Service Reliabilityfrom FAA SDR (Service Difficulty Reports)
89%
Scrap Propensity (SDR-derived)
- SDR reports
- 21
- Replace events
- 16
- Repair events
- 2
- K-code events
- 7
Reporting window 1999-06-18 – 2024-12-20Dominant chapter ATA 26
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(6)
Data Sources(1)
- 2026-03-07
Quick Facts
Airframes6 applicable
AlternatesNone recorded
ClassRotable
CriticalityCritical
CategoryUnknown
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