# AD 2001-06-17: Engine Idle Speed and Fuel Control Mixture Setting

- Type: Airworthiness directive
- Status: Current
- Products: Cessna 172R and 172S
- Effective: April 20, 2001
- Published: March 30, 2001, 66 FR 17345–17348
- Issued: March 23, 2001
- Issued as: Final rule; request for comments
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-12164
- Docket: 2001-CE-14-AD
- Registered aircraft: 3,837 may be affected, by airframe or engine model (OpenAirDocs)
- Official PDF: https://openairdocs.org/files/sha256/dd/9d/dd9d1d4d13456eb5efe6c1136058405ce5278081392ad833de5d438afba13448 (from https://www.govinfo.gov/content/pkg/FR-2001-03-30/pdf/01-7831.pdf)
- Federal Register: https://www.federalregister.gov/documents/2001/03/30/01-7831/airworthiness-directives-cessna-aircraft-company-models-172r-and-172s-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/90B1A4A721C3FBA386256A48005700CC.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/2001-06-17

## Summary

This document makes a correction to Airworthiness Directive (AD) 2001-06-17, which was published in the Federal Register on March 30, 2001 (66 FR 17345), and concerns certain Cessna Aircraft Company (Cessna) Models 172R and 172S airplanes. The FAA incorrectly referenced the AD number as “AD 2001-06-14” instead of “AD 2001-06-17.” This AD requires a one-time inspection for proper engine idle speed and fuel control mixture setting, adjustment as necessary, and incorporation of engine operating procedures into the pilots operating handbook (POH) and FAA-approved airplane flight manual (AFM). This action corrects the AD to reflect the correct AD number.

## The airworthiness directive

Accordingly, the publication of March 30, 2001 (66 FR 17345), of Amendment 39-12164; AD 2001-06-17, which was the subject of FR Doc. 01-7831, is corrected as follows:

On page 17346, in § 39.13, in the third column, the 22nd line from the bottom of the page, correct “2001-06-14” to “2001-06-17”.

Action is taken herein to correct this reference in AD 2001-06-17 and to add this AD correction to § 39.13 of the Federal Aviation Regulations (14 CFR 39.13).

The effective date remains April 20, 2001.

## Rule preamble

### Effective date

The effective date of this AD remains April 20, 2001.

### For further information contact

Mr. Paul Pendleton, Aerospace Engineer, Wichita Aircraft Certification Office, FAA, 1801 Airport Road, Mid-Continent Airport, Wichita, Kansas 67209; telephone: (316) 946-4143; facsimile: (316) 946-4407.

### Discussion

On March 24, 2001, FAA issued AD 2001-06-17, Amendment 39-12164 (66 FR 17345, March 30, 2001), which applies to certain Cessna Models 172R and 172S airplanes. The AD currently requires a one-time inspection for proper engine idle speed and fuel control mixture setting and adjustment, as necessary. This AD also requires incorporating engine operating procedures into the POH/AFM.

### Need for the Correction

We incorrectly referenced the AD number as “AD 2001-06-14” instead of “AD 2001-06-17.” If we did not correct the AD number, then the logbooks of the affected airplane would reference compliance with the wrong AD.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 3A12](https://openairdocs.org/tcds/3A12): Textron Aviation Inc.; names 2 of 18 models: 172R, 172S

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 3,837 (3,837 by airframe model, 0 by engine model)
- Makers: Cessna 2,598, Textron 1,239

Models with the most aircraft:

- [Cessna 172S](https://openairdocs.org/model/cessna-172s): 1,915 aircraft (airframe model)
- [Textron 172S](https://openairdocs.org/model/textron-172s): 1,239 aircraft (airframe model)
- [Cessna 172R](https://openairdocs.org/model/cessna-172r): 683 aircraft (airframe model)

All 4 models: https://openairdocs.org/ad/2001-06-17/models.md
Every aircraft: https://openairdocs.org/ad/2001-06-17/aircraft.md

No proposed rule in this release led to it. Its text cites no advisory circulars or STCs.

## NTSB investigations that cite this AD (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CEN11LA069](https://openairdocs.org/ntsb/CEN11LA069), Nov 12, 2010: Cessna 172R (N531HF), Farmersburg, IN, substantial damage. Probable cause: A total loss of engine power for undetermined reasons.

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