Cabin-pressure valve family
21-30-05-10 and 21-30-05-10B
ATA 21 system directory
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
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.
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.
21-30-05-10 and 21-30-05-10B
21-30-05-10 item 105; 10B item 200
21-30-05-13 and ATA 31 placements
21-30-05-20A and 21-30-05-20B
21-30 installation figures
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.
Technical guides 3 source-reviewed
The guides separate direct spares replacements from configuration families and keep unit-exchange language, service bulletins, and modification notes in their proper source context.
Trace the Hawker 800XP 102466-5 to 102466-13 absolute air-pressure regulator replacement, quantity, effectivity, and Mod 25G173 notes.
Reviewed 2026-08-21↗02 / ATA 21Compare Hawker cabin-pressure valve 103278-13S1, 103278-13S2, and 103278-18 by IPC figure, MOD, service bulletin, effectivity, and source limits.
Reviewed 2026-08-21↗03 / ATA 21Trace the Hawker 800XP 130530-4 to 130530-5 cabin-pressure controller replacement across ATA 21 and ATA 31 IPC placements.
Reviewed 2026-08-21↗Pressurization lookup method
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 ↗Keep every dash number, suffix, and data-plate marking.
Record the serial, installed item, MOD status, kit status, and accomplished service bulletins.
State whether the number is a direct IPC replacement, a configuration neighbor, or a commercial cross-reference.
Confirm condition, traceability, release, warranty, and exchange-core terms.
Technical sources
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.
Hawker 800XP, 850XP and 900XP Illustrated Parts CatalogTextron Aviation
Air Conditioning, Fan Venturi Motor Airworthiness DirectiveCivil Aviation Safety Authority of Australia