B21506
BATTERY PACK
Specifications
- Part Number
- B21506
- Manufacturer
- Boeing
- ATA ChapterMaintenance system chapter
- 33 — LightsField reports: 33 (99%) · 23 (<1%) — 122 reports
- CapabilitySystem area (hydraulics, avionics, landing gear…)
- Electromechanical
- Inventory ClassRotable, expendable, or consumable
- —
- Certification
- —
- Aircraft Category
- Unknown
- Criticality
- Critical
- Life & ShelfTypical service/shelf life — verify against OEM data
- —
Service Reliabilityfrom FAA SDR (Service Difficulty Reports)
99%
Scrap Propensity (SDR-derived)
- SDR reports
- 122
- Replace events
- 116
- Repair events
- 1
- K-code events
- 118
Reporting window 2003-09-12 – 2026-05-01Dominant chapter ATA 33
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)
Alternate / Related Part Numbers(1)
AD-B215-06pma replacement
Data Sources(1)
- 2026-03-07
Quick Facts
Airframes6 applicable
Alternates1 found
ClassUnknown
CriticalityCritical
CategoryNarrow-body
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