# 2026-15467: FAA: Pilatus Planes Need Fancy Engine Crank Ritual to Avoid Blackout

2026-15467, Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes, is a Federal Register rule from Transportation Department, Federal Aviation Administration published 2026-07-30, effective 2026-09-03; PRIA reads it as touching household money (as of 2026-08-06).

- Canonical: https://policyrisk.com/federal-register/2026-15467
- As of: 2026-08-06
- Plain-text twin of the page above; the HTML and this file carry the same facts.

## Facts
- Document number: 2026-15467
- Title: Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes
- Type: Rule
- Agencies: Transportation Department; Federal Aviation Administration
- Citation: 91 FR 47931
- Published: 2026-07-30
- Effective: 2026-09-03
- Comments close: not stated
- Significant: no
- Touches household money: yes
- Regulation identifier numbers: 2120-AA64
- Last updated: 2026-08-06

## In one line

FAA: Pilatus Planes Need Fancy Engine Crank Ritual to Avoid Blackout

## Summary

The FAA is adopting a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. (Pilatus) Model PC-12/47E airplanes. This AD was prompted by a report that, during an engine start on the ground, the airplane battery voltage dropped to a value that resulted in an avionic system shutdown. This AD requires incorporating a temporary revision (TR) into the existing pilot's operating handbook (POH) for the affected airplanes to provide operators with instructions for an enhanced engine start procedure. The FAA is issuing this AD to address the unsafe condition on these products.

## Effects PRIA read

- Pilatus PC-12/47E POH must be revised: benefit, high. If you operate a Pilatus Model PC-12/47E with serial number 1720 or 2001–2999, you must insert the specified Pilot's Operating Handbook Temporary Revision (TR No. 31) into the Normal Procedures section by September 3, 2026. The TR provides an enhanced engine start procedure to prevent an undetected…
- Compliance cost and who may do it: cost, low. The FAA estimates this AD affects 265 U.S.-registered airplanes and will cost $85 per airplane (1 work-hour at $85), for a total estimated U.S. cost of $22,525. The POH revision may be performed by the owner/operator pilot holding at least a private pilot certificate and must be recorded in the air…

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## Sources
- [2026-15467 on federalregister.gov](https://www.federalregister.gov/documents/2026/07/30/2026-15467/airworthiness-directives-pilatus-aircraft-ltd-airplanes)
- [2026-15467 as published (PDF)](https://www.govinfo.gov/content/pkg/FR-2026-07-30/pdf/2026-15467.pdf)

## Related
- [Previous: 2026-15466, Airworthiness Directives; Stemme GmbH Gliders](https://policyrisk.com/federal-register/2026-15466)
- [Next: 2026-15482, Temporary Exemption From Motor Vehicle Safety and Bumper Standards](https://policyrisk.com/federal-register/2026-15482)
- [All Federal Register documents](https://policyrisk.com/federal-register)

Source: PRIA, https://policyrisk.com/federal-register/2026-15467 (as of 2026-08-06).