P4-01-0021
Power Pack Assembly
Specifications
- Part Number
- P4-01-0021
- Manufacturer
- —
- ATA ChapterMaintenance system chapter
- 29 — Hydraulic PowerField reports: 25 (90%) · 33 (10%) · 52 (<1%) — 1,814 reports
- CapabilitySystem area (hydraulics, avionics, landing gear…)
- Hydraulics
- Inventory ClassRotable, expendable, or consumable
- Rotable
- Certification
- OEM
- Aircraft Category
- Unknown
- Criticality
- Standard
- Life & ShelfTypical service/shelf life — verify against OEM data
- —
Service Reliabilityfrom FAA SDR (Service Difficulty Reports)
100%
Scrap Propensity (SDR-derived)
- SDR reports
- 1,814
- Replace events
- 1,685
- Repair events
- 1
- K-code events
- 1,660
Reporting window 1995-01-03 – 2026-06-08Dominant chapter ATA 25
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(12)
Alternate / Related Part Numbers(1)
95-3-1001pma replacement
Data Sources(1)
- 2026-05-18Pma Oem Expansion
Quick Facts
Airframes12 applicable
Alternates1 found
ClassRotable
CriticalityStandard
CategoryMulti-platform
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