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Engine and powerplant

STC SA3251NM

FAA DRS lists SA3251NM as Current · Issued, held by AvComp LLC, for Boeing Airplane Wichita Division IB75A, Boeing Airplane Wichita Division E75N1, and Boeing Airplane Wichita Division B75N1 (Navy N2S-3), and 7 more aircraft configurations. Recorded change: Installation of Speed Ring engine cowling. Snapshot dated June 30, 2026.

FAA-listed holder
AvComp LLC
Aircraft configurations
10
FAA revision date
FAA status
Current · Issued

Recorded modification

What the FAA record covers

Installation of Speed Ring engine cowling.

SA3251NM identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.

Applicability

Aircraft named in FAA DRS

Named aircraft: Boeing Airplane Wichita Division IB75A, Boeing Airplane Wichita Division E75N1, and Boeing Airplane Wichita Division B75N1 (Navy N2S-3), and 7 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Boeing Airplane Wichita Division IB75AA-743Boeing Airplane Wichita Division E75N1A-743Boeing Airplane Wichita Division B75N1 (Navy N2S-3)A-743Boeing Airplane Wichita Division E75 SeriesA-743Boeing Airplane Wichita Division A75N1 SeriesA-743Boeing Airplane Wichita Division D75N1 (Army PT-27)A-743Boeing Airplane Wichita Division B75 (Navy N2S-5)A-743Boeing Airplane Wichita Division 75 (Army PT-13)A-743Boeing Airplane Wichita Division A75L3A-743Boeing Airplane Wichita Division A75 SeriesA-743

Buyer checks

Confirm before sourcing

  1. 01Does it cover the exact Boeing Airplane Wichita Division IB75A and Boeing Airplane Wichita Division E75N1, and 8 more aircraft configurations model, serial range, and configuration?
  2. 02Which powerplant configuration, limits, instruments, and maintenance data apply?
  3. 03Who can legally supply the design data, kit, instructions, and ICAs?
  4. 04What parts, labor, conformity, and return-to-service work are excluded?

Related engine and powerplant STCs

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FAA holder: Thrush Aircraft Inc.

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SA232SOEngine and powerplant

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FAA holder: Lasher Charles David

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