AD 77-02-07 - Beech Model 200 Airplanes

Type	Manufacturer	Model	Details
aircraft	Textron Aviation Inc.	200	Beech Model 200 Airplanes

Unsafe Condition

Failure of the secondary low pitch stop amplifier can cause unintentional feathering of a propeller.

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Required Actions

Replace both P/N 101-364171-1 and P/N 101-364171-9 printed circuit board assemblies with P/N 101-364170-15 assemblies following Service Instruction 0745-354, or remove the secondary low pitch stop system per Service Instruction 0808-247. Equivalent methods require FAA approval.

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Compliance Time

within 100 hours' time in service after the effective date of this AD

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Affected Aircraft

Beech Model 200 airplanes with serial numbers BB-2, BB-6 thru BB-18 and BB-20 thru BB-50

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Federal Register Abstract

Propeller Feathering

Applicability Source Text

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AD Final Rules - DRS_77-02-07.html
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Details
AD Number:
77-02-07
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Beech Model 200 Airplanes
Subject:
Propeller Feathering
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
03/01/1977
Make:
Textron Aviation Inc.
Model:
200
Product Type:
Aircraft
Product Subtype:
Small/Large Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 77-02-07
CITATION: This information is not available.

PAGE NUMBER:

DOCKET NUMBER: Unknown

AMENDMENT: 39-2817

AD NUMBER: 77-02-07

SUBJECT HEADING: Beech Model 200 Airplanes

ACTION:

SUMMARY:

DATES: Effective March 1, 1977.

ADDRESSES:

FOR FURTHER INFORMATION CONTACT:

SUPPLEMENTARY INFORMATION:

REGULATORY TEXT:
77-02-07 BEECH: Amendment 39-2817. Applies to Model 200 (Serial Numbers BB-2, BB-6 thru BB-18 and BB-20 thru BB-50) airplanes.

Compliance: Required within 100 hours' time in service after the effective date of this AD, unless already accomplished.

To prevent unintentional feathering of a propeller due to failure of the secondary low pitch stop amplifier, accomplish either Paragraph A or B:

A) Replace both P/N 101-364171-1 and P/N 101-364171-9 printed circuit board assemblies with P/N 101-364170-15 printed circuit board assemblies in accordance with Beechcraft Service Instruction No. 0745-354, notwithstanding its supersedence by Beechcraft Service Instruction No. 0808-247.

B) Remove secondary low pitch stop system in accordance with Beechcraft Service Instruction No. 0808-247, or later approved revisions.

C) Airplanes which have accumulated 100 hours' time in service after the effective date of this AD may be flown in accordance with FAR 21.197 to a place where a replacement or removal can be performed, providing the existing amplifiers have not malfunctioned.

D) Any equivalent method of compliance with this AD, must be approved by the Chief, Engineering and Manufacturing Branch, FAA Central Region.

NOTE: The manufacturer has advised the FAA that sufficient replacement parts are available to accomplish Paragraph A of this AD.

This amendment becomes effective March 1, 1977.

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