ATA 21 system directory

Cabin pressurization.
Match the MOD and the SB.

H80 / ATA 21

This first ATA 21 directory pass covers cabin-pressure valves, absolute-pressure regulators, controllers, check valves, the manual needle valve, and the fan-operated venturi. Every relationship stays attached to its printed figure, item, serial block, and source.

Published records 12 source-reviewed

Open the exact pressure-control record.

Similar descriptions do not make these parts interchangeable. Start with the full data-plate number, then carry the aircraft serial, installed item, embodied MOD, and service-bulletin status into the lookup.

01
Part number103278-13S1
IPC nameCabin air-pressure valve
Reference21-30-05-10 / 15
Effectivity8401-8401,8421-8421,8434-8434,8447-8447
02
Part number103278-13S2
IPC nameCabin air-pressure valve
Reference21-30-05-10 / 15
Effectivity8401-8401,8421-8421,8434-8434,8447-8447
03
Part number103278-18
IPC nameCabin air-pressure valve
Reference21-30-05-10 / 15
Effectivity8266-8277,8279-8279,8283-8284
04
Part number102466-5
IPC nameAbsolute air-pressure regulator
Reference21-30-05-10 / 105
Effectivity8266-8277,8279-8279,8283-8284,8401-8401,8421-8421,8434-8434,8447-8447
05
Part number102466-13
IPC nameAbsolute air-pressure regulator
Reference21-30-05-10 / 105
Effectivity8266-8277,8279-8279,8283-8284,8401-8401,8421-8421,8434-8434,8447-8447
06
Part number130530-4
IPC nameCabin-pressure controller
Reference21-30-05-13 / 10
Effectivity8266-8340,8342-8369,8371-8380,8382-8406,8408-8445,8447-8468,8470-8999
07
Part number130530-5
IPC nameCabin-pressure controller
Reference21-30-05-13 / 10
Effectivity8266-8340,8342-8369,8371-8380,8382-8406,8408-8445,8447-8468,8470-8999
08
Part number130156-1
IPC nameCabin-pressure check valve
Reference21-30-05-20A / 250
Effectivity8266-8277,8279-8279,8283-8284,8401-8401,8421-8421,8434-8434,8447-8447
09
Part number130156-2
IPC nameCabin-pressure check valve
Reference21-30-05-20A / 250
Effectivity8266-8277,8279-8279,8283-8284,8401-8401,8421-8421,8434-8434,8447-8447
10
Part number131004-2
IPC nameCabin-altitude needle valve
Reference21-30-05-10 / 280
Effectivity8277-8277,8279-8279,8283-8284
11
Part number132322-3-1
IPC nameFan and venturi assembly
Reference21-30-05-10 / 180
Effectivity8266-8277,8279-8279,8283-8284,8401-8401,8421-8421,8434-8434,8447-8447
12
Part numberAWE113-13A
IPC nameCabin-pressure butterfly valve
Reference21-30-05-35 / 100
Effectivity8266-8540,8542-8555,8557-8566
Original catalog map

How the ATA 21 pressurization records divide.

This map keeps the direct replacement pairs separate from the 103278 MOD and service-bulletin states. It is a catalog map, not a pneumatic schematic or troubleshooting reference.

The IPC prints direct forward relationships for 102466, 130530, and 130156. It does not print a blanket supersession across the three 103278 records. Match those valve records by the aircraft serial, embodied MOD, service-bulletin status, installed position, and current approved data.

Pressurization lookup method

Configuration is part of the part number check.

The catalog can point forward to a replacement. The aircraft records and current technical data confirm whether the installed configuration is ready for that path.

Compare the 103278 valve records ↗
  1. 01
    Exact identity

    Keep every dash number, suffix, and data-plate marking.

  2. 02
    Aircraft configuration

    Record the serial, installed item, MOD status, kit status, and accomplished service bulletins.

  3. 03
    Source relationship

    State whether the number is a direct IPC replacement, a configuration neighbor, or a commercial cross-reference.

  4. 04
    Offered unit

    Confirm condition, traceability, release, warranty, and exchange-core terms.

Technical sources

Catalog evidence and regulatory evidence stay separate.

The IPC supports the part records, replacement notes, quantities, and effectivity. The CASA directive separately supports the 132322 fan-venturi service-bulletin path within its stated applicability. Supplier links help source a unit but do not approve an installation.

Technical sources

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

    Document
    IPC-800XP
    Revision
    A0
    Published
    2026-02-05
    Supports
    Part identities, nomenclature, figure and item references, quantity, effectivity, and relationship language as printed in the supplied IPC export.
  2. Air Conditioning, Fan Venturi Motor Airworthiness DirectiveCivil Aviation Safety Authority of Australia

    Document
    AD/HS 125/178
    Supports
    The service-bulletin-based path from fan venturi 132322-2-1 to new fan venturi 132322-3-1 for the aircraft identified in the directive, plus the associated installation restriction.