# Federal Register #2026-21290

FAA safety directive requiring pressure burner sensor replacement on specified Pratt & Whitney engines

**Buyer:** Federal Aviation Administration
**Posted:** October 19, 2026
**Identifier:** 2026-21290
**NAICS:** 336412

The Federal Aviation Administration is requiring pressure burner sensor replacement on specified Pratt & Whitney engines to address engine-safety risks.
- Government buyer: U.S. Department of Transportation, Federal Aviation Administration (FAA), Aircraft Certification Service.
- **OEM: Pratt & Whitney Division**, manufacturer of the affected engines.
- Affected engine models: PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4062A, PW4152, PW4156, PW4156A, PW4158, PW4460, and PW4462.
- Required action: Replace each affected engine’s pressure burner (Pb) sensor with an eligible sensor that has fewer than 30,000 flight hours and fewer than 10 years since new or last repair. Replacement timing is phased and must occur before the applicable flight-hour or calendar-time limit, whichever comes first. For sensors below both limits when compliance begins, replacement is due within 30 months or earlier if a limit is reached.
- The FAA estimates 210 affected U.S.-registered engines and a replacement cost of $15,864 per engine, or $3,331,440 total for U.S. operators. These are compliance cost estimates, not a government contract value.
- This is a safety directive, not a government purchase solicitation; no procurement quantity or part number is specified.

### Description

The FAA is adopting a new airworthiness directive for all Pratt & Whitney Division PW4052, PW4056, PW4060, PW4060A, PW4060C, PW4062, PW4062A, PW4152, PW4156, PW4156A, PW4158, PW4460, and PW4462 engines. The directive responds to reports of tailpipe fire, loss of thrust control, and engine in-flight shutdown associated with undetected deterioration of pressure burner (Pb) sensors. It requires replacement of Pb sensors to address the unsafe condition. The rule is effective November 23, 2026.

[View original listing](https://www.federalregister.gov/documents/2026/10/19/2026-21290/airworthiness-directives-pratt-and-whitney-division-engines)