Boeing Gets $499.8 Million Apache Engineering Support Modification Through February 2031
The US Army has added a $499.8 million ($499,760,655) modification to Boeing’s contract for AH-64 Apache engineering services and technical support, with an estimated completion date of February 20, 2031. It is modification P00006 to contract W58RGZ-21-D-0077, awarded to Boeing in Mesa, Arizona. It is a support deal, not an order for new helicopters.
Last updated: 29 October 2026
What the announcement says
The text of the Defense Department’s daily contract announcement appears in Aerotech News & Review’s contract briefs of 28 October 2026. We could not open the official page directly, so the figures below come from that reproduction.
- Contractor: Boeing Co., Mesa, Arizona.
- Value: $499,760,655, modification P00006 to W58RGZ-21-D-0077.
- Scope: Apache AH-64 engineering services and technical support.
- Estimated completion: February 20, 2031.
- Competition: bids were solicited online; one was received.
- Contracting activity: Army Contracting Command, Redstone Arsenal, Alabama.
- Work locations and funding will be determined with each order.
That last line matters. The announcement does not say how much of the $499.8 million is obligated; read it as a ceiling that is drawn down as orders are placed. The text also carries the note “Awarded Feb. 21, 2026”, which sits oddly with an October publication. We cannot explain the gap from the sources we have, so we report it as written.
The earlier contract and the extension
For the same work, the Army awarded Boeing $487 million in August 2021, with reporting at the time putting the end date at February 6, 2026 (GovConWire, The Defense Post). The new modification pushes the work to 2031. We do not add the two figures into a “total”: the announcement does not say whether the new amount stacks on the old one.
What is the AH-64 Apache?
The AH-64 Apache is a twin-engine attack helicopter built and tested by Boeing in Mesa, Arizona. Boeing says more than 2,875 Apaches have been produced across the A through E models, more than 1,300 aircraft are in service worldwide, and the fleet has logged over 5.3 million flight hours, more than 1.3 million of them in combat. The AH-64E adds more powerful T700 engines, an advanced sensor and targeting suite and Link 16.
Boeing’s customer list names Australia, Japan, Saudi Arabia, Egypt, South Korea, Singapore, Greece, Kuwait, the UAE, India, Morocco, the UK, Indonesia, the Netherlands, the US, Israel and Qatar. The page says “19 countries” in its text but lists 17; we report the list.
Why a support contract matters
An attack helicopter’s cost is not only its purchase price. Software updates, structural investigations, component life management and processing of fleet failure data all need engineering support for years. This contract secures that layer, and the single bid reflects where design authority sits: with Boeing.
Related coverage: the $419.6 million Longbow award for Apache fire control radars and Israel’s $1 billion deal for 12 AH-64Es.
Order, delivery and inventory
This is a services contract. It contains no new aircraft order, delivery or inventory change, and dividing the value by a number of helicopters to get a unit cost would be meaningless.
The Turkish angle: T129 ATAK and foreign dependence
The T129 ATAK is not a direct Apache competitor. Sources based on Turkish Aerospace data give it a maximum takeoff weight of 5,056 kg, while the Apache is roughly double that (ArmyRecognition: about 10.4 tonnes). So this is not a performance comparison; the relevant link is engine and subsystem dependence.
| Criterion | AH-64E Apache | T129 ATAK |
|---|---|---|
| Maker | Boeing, Mesa (Arizona) | Turkish Aerospace (TUSAŞ) |
| Engine | T700 family (Boeing gives no variant) | Two LHTEC CTS800, 1,373 hp class |
| Export licensing | Subject to US process | US State Department approval needed because of US content in the engine |
| Domestic engine path | None (US-made) | TEI TS1400 in development, not fitted to the T129 |
The CTS800 comes from LHTEC, a Rolls-Royce and Honeywell venture. According to Defense Mirror, the engine has over 20 percent US-origin components, so exports to third countries need US State Department approval. Turkey and Pakistan signed for 30 T129s worth about $1.5 billion in July 2018; the US withheld the engine export certificate in December 2018 and deliveries were blocked (Defense Mirror).
The proposed fix is TEI’s TS1400 turboshaft. TurDef reported in February 2026 that it was not yet certified, that the earlier end-2025 target had passed, and that TS1400-powered deliveries are expected in 2027-2028, a timeline given for the T625 GÖKBEY. The same report says the T625’s first deliveries will use the CTS800, which also powers the T129. So the T129’s engine today is foreign; the TS1400 on the ATAK is still planned. See also how the GÖKBEY is built.
None of this makes the Apache “better” or the T129 “worse”. It shows where each support chain starts. We found no verified detail on the role of Turkey’s Presidency of Defense Industries (SSB) here, so we leave it out.
FAQ
Who makes the AH-64 Apache?
Boeing, which builds and tests it in Mesa, Arizona.
How many countries operate the Apache?
Boeing’s page says 19 but lists 17, including Saudi Arabia, Egypt, the UAE, Kuwait, Qatar and Morocco.
Does the T129 ATAK have a Turkish engine?
Not yet. It flies on LHTEC CTS800 engines. The domestic TEI TS1400 was not certified as of February 2026.
Is this a new Apache order?
No. It covers engineering and technical support.
Sources
- US Department of Defense daily contract text via Aerotech News & Review: aerotechnews.com
- Boeing, AH-64 Apache: boeing.com
- GovConWire, 2021 award: govconwire.com
- The Defense Post: thedefensepost.com
- Defense Mirror: defensemirror.com
- TurDef, 2 February 2026: turdef.com
- T129 ATAK data: Wikipedia
