# [Corrected]
**AGENCY:**
Federal Aviation Administration, DOT.
**ACTION:**
Final rule; correction.
**SUMMARY:**
This document makes a correction to Airworthiness Directive (AD) 2001-24-12 applicable to Rolls-Royce Corporation (formerly Allison Engine Company) 250-C20 series turboshaft and 250-B17 series turboprop engines, that was published in the *Federal Register* on December 4, 2001 (66 FR 62915). The AD number being superseded was inadvertently omitted under the PART 39—AIRWORTHINESS DIRECTIVES amendatory instruction 2 in the heading of the AD. This document corrects that omission. In all other respects, the original document remains the same.
**EFFECTIVE DATE:**
December 19, 2001.
**FOR FURTHER INFORMATION CONTACT:**
John Tallarovic, Aerospace Engineer, Chicago Aircraft Certification Office, FAA, Small Airplane Directorate, 2300 East Devon Avenue, Des Plaines, IL 60018; telephone (847) 294-8180, fax (847) 294-7834.
**SUPPLEMENTARY INFORMATION:**
A final rule; request for comments airworthiness directive applicable to Rolls-Royce Corporation (formerly Allison Engine Company) 250-C20 series turboshaft and 250-B17 series turboprop engines was published in the *Federal Register* on December 4, 2001 (66 FR 62915). The following correction is needed:
**14 CFR Part 39**
§ 39.13
On page 62916, in the first column, under PART 39—AIRWORTHINESS DIRECTIVES, amendatory instruction 2, the heading of the AD is corrected to read as follows:
*2001-24-12 Rolls-Royce Corporation (formerly Allison Engine Company)* : Amendment 39-12529. Docket No. 2001-NE-38-AD. Supersedes AD 2001-20-51.
Issued in Burlington, Massachusetts, on December 14, 2001.
Francis A. Favara,
Acting Manager, Engine and Propeller Directorate, Aircraft Certification Service.