Verified IPC identity record

ACM22742

Right-hand brake modulator assembly

Direct answer

The IPC identifies ACM22742 as the right-hand brake modulator assembly in ATA 32, Figure 32-40-30-10, item 310. The row lists one unit per assembly for effectivity 8266-8999, marks it as a unit exchange item, and references CMM 32-40-10. Keep it separate from the left-hand ACM22740 record.

Last source review:

IPC record

Identity and application.

The reviewed catalog row establishes the part identity and its location in the combined Hawker IPC. It does not establish the condition of a particular unit or approve that unit for installation.

ACM22742 verified catalog fields
Part numberACM22742verified
Preferred nameRight-hand brake modulator assemblyverified
IPC nomenclatureModulator assembly, RH, unit exchange itemverified
SystemLanding gear and brakesverified
Primary ATA chapter32verified
Lookup variantsACM-22742verified
ACM22742 catalog occurrences
Aircraft and publication scopeEffectivityFigure / itemQtyReview
Hawker 800XP, 850XP, and 900XP with kit 140-9004 publication scope8266-8999 as printed in the IPC export32-40-30-10 / 3101verified

Cross-reference check

Relationships and limits.

  • ACM22742 is the right-hand modulator in the reviewed figure.
  • ACM22740 is the separately numbered left-hand modulator at item 305.
  • The IPC marks ACM22742 as a unit exchange item and references CMM 32-40-10.
Important limit

No alternate or superseding part number is printed on the ACM22742 row. A source offering ACM22740 is not evidence that it can fill the right-hand position.

Mechanic's lookup notes

Common questions about ACM22742.

Is ACM22742 the left or right brake modulator?

ACM22742 is the right-hand modulator assembly in the reviewed IPC figure. State the right-hand position and exact part number when requesting a quote.

What is the related left-hand modulator number?

The same IPC figure lists ACM22740 as the left-hand modulator. The separate side assignments are a relationship, not an interchangeability statement.

What should be checked on an ACM22742 exchange quote?

Check the exact part and serial numbers, configuration, core-return terms, traceability, release paperwork, shop capability, and applicability to the aircraft serial number.

Long-form context

Technical guides that use this record.

Technical sources

  1. Hawker 800XP, 850XP and 900XP Illustrated Parts CatalogTextron Aviation

    Document
    IPC-800XP
    Revision
    A0
    Published
    2026-02-05
    Supports
    ACM22742 identity, nomenclature, 32-40-30-10 item 310, quantity, and effectivity as printed in the supplied export.