HawkerAircraft Parts

Hawker technical guide

Hawker 800XP Hydraulic Pump 42022-03 Identification

Direct answer

The reviewed IPC uses hydraulic pump part number 42022-03 at both the left-hand and right-hand engine positions. The ATA 29 engine-accessory figures list the same number at item 127. The ATA 71 engine-installation figure lists it separately at LH item 174 and RH item 176. Every row prints type AP05V086-03, kit 140-5001, SB29-101, unit-exchange status, CMM 29-10-22, quantity 1, and effectivity 8266-8999.

Published Reviewed

Four catalog placements, one pump number

The supplied IPC places 42022-03 in four rows:

Figure Item Position or catalog context Quantity Effectivity
29-10-05-05 127 LH engine-accessory installation 1 8266-8999
29-10-05-10 127 RH engine-accessory installation 1 8266-8999
71-00-20-01 174 LH hydraulic pump 1 8266-8999
71-00-20-01 176 RH hydraulic pump 1 8266-8999

The repeated number matters. The catalog does not print one pump number for the left engine and another for the right engine.

Configuration information printed with 42022-03

Every reviewed row carries the same configuration set:

  • pump type AP05V086-03
  • kit number 140-5001
  • Service Bulletin SB29-101
  • Component Maintenance Manual 29-10-22
  • unit-exchange status
  • effectivity 8266-8999

Keep those fields with the part number when checking an offered pump. A listing that only says “Hawker hydraulic pump” leaves out the identifiers that make the catalog record useful.

What LH and RH mean for this record

The ATA 71 figure labels separate left-hand and right-hand pump positions, but both point to 42022-03. That supports one canonical part-number record linked from both positions.

It does not prove that any pump carrying the base number has the required modification state for a particular aircraft. Compare the data plate, release paperwork, aircraft serial, and applicable current technical data.

Unit exchange does not describe the offered pump

The IPC marks 42022-03 as a unit exchange item. That tells the parts researcher to expect an exchange path may exist. It does not tell us whether a particular offer is new, serviceable, repaired, or overhauled.

For an exchange quote, request:

  1. Exact 42022-03 data-plate identity and pump serial number.
  2. Type AP05V086-03 and kit 140-5001 configuration confirmation.
  3. Offered condition and release documentation.
  4. Time-since-new or time-since-overhaul data when applicable.
  5. Core part number, serial number, condition requirements, and return window.
  6. Any SB29-101 or modification-status evidence required by the current aircraft data.

What this guide does not provide

The IPC references CMM 29-10-22, but that manual is not part of the supplied source set. This page does not state pump test limits, pressure settings, installation procedures, or overhaul criteria.

Use the guide for part-number identification and quote preparation. Use the applicable approved maintenance and component data for technical work and return to service.

Direct lookup answers

Common questions.

Does the Hawker 800XP use 42022-03 on both engines?

Yes. The reviewed IPC lists 42022-03 in both LH and RH engine-accessory figures and at separate LH and RH positions in Figure 71-00-20-01.

What type number and kit are printed for hydraulic pump 42022-03?

All four reviewed rows print type AP05V086-03 and kit 140-5001. The same rows also carry SB29-101 and CMM 29-10-22.

Is 42022-03 a unit exchange item?

Yes. Every reviewed placement marks 42022-03 as a unit exchange item. Core eligibility, condition, modification state, and release paperwork remain quote-specific.

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.