Smoke-Filled Cockpits Prompt Return to Older Generators for Apache Helicopters –

The battlefield may be in a warzone, but for Apache helicopter pilots, a new threat emerged – one originating from within their own cockpits.

Safety Issues with Upgraded Generator Force Downgrade

The US Army and Boeing are taking a step back in Apache helicopter technology. They are opting to reinstall older generators after encountering safety issues with a recently upgraded model.

The AH-64E Apache, a mainstay of American attack helicopter forces, experienced a rise in electrical power generator failures in 2023.

These failures, linked to the Honeywell -11 generator variant installed during an upgrade, resulted in “potentially hazardous flight conditions and precautionary landings,” according to Pentagon reports.

The most concerning consequence involved smoke-filling cockpits, creating “breathing and visibility problems” for pilots as reported by a Program Executive Office Aviation spokesman.

Thankfully, no accidents or fleet grounding were reported.

As a temporary solution, the Army implemented a modification that automatically shuts down a failing -11 generator. However, a longer-term fix was necessary.

AH-64E Apache Helicopters flying over the Baumholder Maneuver Training Area, April 17, 2024. (Image source: DVIDS)

Dual Approach: Reintroduction of Older Model and Search for Next-Generation Solution

The solution involves a two-pronged approach.

Firstly, the Army will transition back to the older Honeywell -7 generator model. This transition will occur gradually, replacing generators during attrition cycles to minimize the impact on Apache readiness.

Boeing reports having a sufficient stockpile of -7 generators for this purpose.

Secondly, Boeing is actively searching for a next-generation generator solution.

The company will present its findings and recommendations to the Army, which will have the final say on testing, implementation, and which Apache variants might receive the new generator.

“A long-term solution is under investigation,” confirmed a Program Executive Office Aviation spokesman to Breaking Defense. “Engineering effort will commence once the program is funded.”

While the cause for the -11 generator’s malfunctions remains unclear, this rollback ensures the safety of Apache pilots in the near future.

Impact on Apache Operations

The decision to revert to the -7 generator highlights the importance of rigorous testing during the development and implementation of upgrades for critical military equipment.

While the -11 generator offered potential performance improvements, unforeseen safety issues forced a return to the older model.

The impact on Apache operations is expected to be minimal, as the transition will occur gradually, and Boeing has a stockpile of -7 replacements.

The Search for a Permanent Fix: Balancing Performance and Safety

The search for a next-generation generator solution underscores the Army and Boeing’s commitment to maintaining the combat effectiveness of the Apache helicopter.

The ideal replacement will not only meet stringent safety requirements but also offer improved performance and reliability compared to the -7 model.

This balancing act will require careful consideration of factors such as power output, weight, and maintainability.

Looking Ahead: Maintaining Apache’s Edge

The Apache helicopter remains a vital asset in the US Army’s arsenal, providing close air support, armed reconnaissance, and anti-tank warfare capabilities.

The ongoing effort to address the generator issue demonstrates the commitment to maintaining the platform’s effectiveness on the battlefield.

By working together, the Army and Boeing can ensure that the Apache continues to be a reliable and safe platform for pilots well into the future.