# PMA parts: Allison 250-C28C

A list on [Allison 250-C28C](https://openairdocs.org/engine/allison-250-c28c.md).

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first.

Page 1 of 10 · 455 PMA parts

- [2691794HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192280472920240802140700.0001): Bearing, Ball (Drive) · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2691794 · Apr 4, 2024
- [82010546-001HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198764457620230717173048.0001): Bearing, Ball (Drive) · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 82010546-001 · May 22, 2023
- [82010580-001HT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163424415620230717173050.0001): Grease, Aircraft Bearing · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 82010580-001 · May 22, 2023
- [2549171-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID133350387220230907182150.0001): Governor Assembly, Power Turbine · Honeywell International Inc. · PMA PQ1222NM · Replaces 23086774 · Mar 10, 2023
- [2549171](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID118302742720230907182151.0001): Power Turbine Governor · Honeywell International Inc. · PMA PQ1222NM · Replaces 23076419 · Mar 10, 2023
- [6843361HT](https://drs.faa.gov/browse/excelExternalWindow/FEFFC83511F3456B862585500062B6AE.0001): Cage, Ball Bearing-1.024 ID X.312 Wide (and Oversizes) · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6843361 · Apr 30, 2019
- [2537525HT](https://drs.faa.gov/browse/excelExternalWindow/FE2CFD93295E4A9586258550006312B3.0001): Shaft, Shouldered, Eccentric · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2537525 · Apr 30, 2019
- [2539533HT](https://drs.faa.gov/browse/excelExternalWindow/FDF710A0D9BAAADD8625855000632B9C.0001): Bearing, Sintered · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539533 · Apr 30, 2019
- [951190HT](https://drs.faa.gov/browse/excelExternalWindow/FC8B8869AAFBA24A8625855000632D54.0001): Pin, Sraight, Headless · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 951190 · Apr 30, 2019
- [2521745HT](https://drs.faa.gov/browse/excelExternalWindow/FB5437CD05C715928625855000631007.0001): Pin, Straight, Headed · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2521745 · Apr 30, 2019
- [2523123HT](https://drs.faa.gov/browse/excelExternalWindow/F7ED1DCCD5F726178625855000635A58.0001): Diaphragm · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2523123 · Apr 30, 2019
- [47070HT](https://drs.faa.gov/browse/excelExternalWindow/F7B8FBB13C3754EE8625855000633D7A.0001): Body, Fuel Nozzle · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 47070 · Apr 30, 2019
- [6875104HT](https://drs.faa.gov/browse/excelExternalWindow/F7976EEE0864C0FC8625855000629713.0001): Washer, Flat-.190I.D. X.312X.031 THK, AMS 5516 · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6875104 · Apr 30, 2019
- [H250-10113](https://drs.faa.gov/browse/excelExternalWindow/F79503304C39D6A78625855000638D3A.0001): Race, Bearing Inner, 20mm I.D. · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces M250-10113 · Apr 30, 2019
- [6856986HT](https://drs.faa.gov/browse/excelExternalWindow/F71D7C1A9289065F862585500062C13F.0001): Poppet & Seat Assy. Anti-Icing Valve · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6856986 · Apr 30, 2019
- [23073355](https://drs.faa.gov/browse/excelExternalWindow/F65CBF7AF67669F38625855000633C45.0001): Valve, Servo-Compressor Bleed · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 23073355 · Apr 30, 2019
- [197498HT](https://drs.faa.gov/browse/excelExternalWindow/F58363F6C29A0E2C8625855000636674.0001): Nut, Self-Locking · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 197498 · Apr 30, 2019
- [23004513HT](https://drs.faa.gov/browse/excelExternalWindow/F536F4331CB36E2186258550006314B5.0001): Seal, Plain-Encased · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 23004513 · Apr 30, 2019
- [2539728HT](https://drs.faa.gov/browse/excelExternalWindow/F443067B0718FDB0862585500062E5F1.0001): Seat, Bellows · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539728 · Apr 30, 2019
- [6853463HT](https://drs.faa.gov/browse/excelExternalWindow/F3D6B2D89D6786D486258550006375D6.0001): Tube Assy., Scav. -Oil- Gasifier Turbine Support to Accessory Hsg · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6853463 · Apr 30, 2019
- [6896098HT](https://drs.faa.gov/browse/excelExternalWindow/F32E4B1478DF1131862585500062F93E.0001): Seal, Labyrinth-Gasifier Turbine Forward · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6896098 · Apr 30, 2019
- [6808392HT](https://drs.faa.gov/browse/excelExternalWindow/F327858FDC6FA3FD862585500062EFB3.0001): Nut-Spanner, 27/32-32Thd · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6808392 · Apr 30, 2019
- [6844169HT](https://drs.faa.gov/browse/excelExternalWindow/EEA08B5CE9D50D858625855000632609.0001): Tube Assy., Fuel Control to Fire Shield · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6844169 · Apr 30, 2019
- [6877277HT](https://drs.faa.gov/browse/excelExternalWindow/ED89264E3E345B9F86258550006327C1.0001): Tube Assy., Press. Fuel Control to Accumulator · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6877277 · Apr 30, 2019
- [2539170HT](https://drs.faa.gov/browse/excelExternalWindow/ED10E7C1F7943A5C862585500063453A.0001): Lever Assembly, CAM Follower Lever · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539170 · Apr 30, 2019
- [6890040HT](https://drs.faa.gov/browse/excelExternalWindow/EAB4262CF5DCF6B1862585500062F849.0001): Shield Assy., Turbine Nozzle 1st Stage · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6890040 · Apr 30, 2019
- [2539641HT](https://drs.faa.gov/browse/excelExternalWindow/EAAC9B4FF82FDB5186258550006333E2.0001): Spring, Helical, Extension · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539641 · Apr 30, 2019
- [6856984HT](https://drs.faa.gov/browse/excelExternalWindow/E8ADCF843602D53C862585500062BF66.0001): Body, Valve-Anti-Icing · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6856984 · Apr 30, 2019
- [6876030HT](https://drs.faa.gov/browse/excelExternalWindow/E79234C7BBF9CF68862585500062FEEB.0001): Stud, Shouldered, Stepped-.250-28x.500-16x1.374LG. · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6876030 · Apr 30, 2019
- [6876925HT](https://drs.faa.gov/browse/excelExternalWindow/E50B21DEC0893A14862585500062E284.0001): Tube Assy., Oil Filter Inlet · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6876925 · Apr 30, 2019
- [23032283HT](https://drs.faa.gov/browse/excelExternalWindow/E406BEB5470E1FE7862585500062DD76.0001): Pinion Bearing Cage Power Turbine · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 23032283 · Apr 30, 2019
- [6844043HT](https://drs.faa.gov/browse/excelExternalWindow/E3DD22AFB6589BF4862585500062A71B.0001): Tube, Oil Transfer · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6844043 · Apr 30, 2019
- [6899050HT](https://drs.faa.gov/browse/excelExternalWindow/E20ACA4FAC9A2EAB862585500062863D.0001): Valve-Poppet, CPRSR Bleed · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6899050 · Apr 30, 2019
- [336132HT](https://drs.faa.gov/browse/excelExternalWindow/E07190E2A02F10498625855000636717.0001): Tapered Pin, Split · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 336132 · Apr 30, 2019
- [6853446HT](https://drs.faa.gov/browse/excelExternalWindow/DF8E0D4DBF0B1EA9862585500062B018.0001): Shaft, Gear-Oil Pump · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6853446 · Apr 30, 2019
- [6899051HT](https://drs.faa.gov/browse/excelExternalWindow/DF724C028D881CAF8625855000628826.0001): Valve, Servo-Compressor Bleed · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6899051 · Apr 30, 2019
- [2520570HT](https://drs.faa.gov/browse/excelExternalWindow/DC7000B2192F14888625855000633F53.0001): Rod · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2520570 · Apr 30, 2019
- [6810448HT](https://drs.faa.gov/browse/excelExternalWindow/DAF595A1CC57D376862585500062E13F.0001): Bushing-Sleeve.625 x.815 x.437 · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6810448 · Apr 30, 2019
- [6876741HT](https://drs.faa.gov/browse/excelExternalWindow/DAD145C0601221568625855000636F8D.0001): Stud, Welding- Percussion.190-32 UNJF-3A · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6876741 · Apr 30, 2019
- [951388HT](https://drs.faa.gov/browse/excelExternalWindow/DA66A5873365EBC9862585500063070A.0001): Packing, Preformed O Ring · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 951388 · Apr 30, 2019
- [2539034HT](https://drs.faa.gov/browse/excelExternalWindow/D854B45671A2734E862585500063447F.0001): Weight · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2539034 · Apr 30, 2019
- [6848471HT](https://drs.faa.gov/browse/excelExternalWindow/D56C5A805DBB39DB8625855000634EEA.0001): Tube, Assy., Pressure, Oil Check Valve To Fire Shield · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6848471 · Apr 30, 2019
- [6890909HT](https://drs.faa.gov/browse/excelExternalWindow/D3CFDDD1AC5180DE862585500062896E.0001): Jet, Compressor Bleed Valve · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6890909 · Apr 30, 2019
- [6852176HT](https://drs.faa.gov/browse/excelExternalWindow/D2E81DF924CBABBF862585500062BB43.0001): Guide Assy., Poppet-Anti-Icing Valve · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6852176 · Apr 30, 2019
- [2537956HT](https://drs.faa.gov/browse/excelExternalWindow/D20327EF0618F354862585500063323E.0001): Pin, Shoulder, Headless · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2537956 · Apr 30, 2019
- [951390HT](https://drs.faa.gov/browse/excelExternalWindow/D0B5B6870CEFAA55862585500063078F.0001): Packing, Preformed O Ring · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 951390 · Apr 30, 2019
- [6896437HT](https://drs.faa.gov/browse/excelExternalWindow/CF4D9A2F43D117368625855000630188.0001): Strainer Assy.-Compressor-Bleed Valve · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6896437 · Apr 30, 2019
- [6877736HT](https://drs.faa.gov/browse/excelExternalWindow/CEBECB98B3BC3712862585500062ABD4.0001): Seal, Labyrinth Stator-Gasifier Turbine Brg. · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 6877736 · Apr 30, 2019
- [2520561HT](https://drs.faa.gov/browse/excelExternalWindow/C93D07A85055A49E86258550006358AA.0001): Roller · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2520561 · Apr 30, 2019
- [2522105HT](https://drs.faa.gov/browse/excelExternalWindow/C831F72FFA3592EE8625855000633FF3.0001): Spacer · HYE-Tech Manufacturing LLC · PMA PQ2317NM · Replaces 2522105 · Apr 30, 2019

Next page: https://openairdocs.org/engine/allison-250-c28c/pma.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT drs_guid, part_number, part_name, holder, pma_number, replaces_part, supplement_date, tcds_models
FROM 'https://openairdocs.org/data/latest/faa_type_certificate_pma.parquet'
WHERE tcds_number IN ('E1GL')
  AND len(list_intersect(tcds_models, ['250-C28C'])) > 0
ORDER BY supplement_date DESC, drs_guid DESC
```

This list as a web page: https://openairdocs.org/engine/allison-250-c28c/pma

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