E21327007
STEERING UNIT
Specifications
- Part Number
- E21327007
- Manufacturer
- MESSIER
- ATA ChapterMaintenance system chapter
- 32 — Landing Gear
- CapabilitySystem area (hydraulics, avionics, landing gear…)
- Landing Gear
- Inventory ClassRotable, expendable, or consumable
- Rotable
- Certification
- OEM
- Aircraft Category
- Multi-Category
- Criticality
- Critical
Service Reliabilityfrom FAA SDR (Service Difficulty Reports)
- SDR reports
- 6
- Replace events
- 6
- Repair events
- 0
- K-code events
- 2
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.
Airworthiness Directive coverage
FAA / EASA public regulatory data
- EASAAD 2023-0093-R1effective May 19, 2023Prohibition
No summary available - see the EASA publication.
- EASAAD 2022-0032effective Aug 5, 2022Prohibition
No summary available - see the EASA publication.
Directives citing this part number in the FAA / EASA regulatory corpus we have processed — not a complete historical AD list. An AD is a compliance requirement that drives scheduled work (inspections, replacements, modifications) on the fleets that carry the part; a directive naming this PN as the replacement part is install demand, not an action against it — and none of this is a prediction that the part will fail.
Airframe Applicability(4)
Data Sources(1)
- 2026-03-07
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