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Airworthiness Directive

AD 97-21-09: Allison Engine Company Model 250-C47B Turboshaft Engines

Airworthiness Directives; Allison Engine Company Model 250-C47B Turboshaft Engines

Effective
Dec 3, 1997
Published
Nov 18, 1997
Registered aircraft
15

Models this AD may apply to

AI-extracted — verify against original

Matched from the AD's applicability section. Applicability must be confirmed by a mechanic against the aircraft's records.

Engines

  • ALLISON 250-C47B

Applicability

From the AD text
Allison Engine Company Model 250-C47B turboshaft engines, installed on but not limited to Bell Helicopter Textron, A Division of Textron Canada Ltd. (BHTC) Model 407 helicopters.

Related ADs

Superseded or revised by AD 98-10-03.

Supersedes or revises AD 96-24-09.

Read the AD in the Federal RegisterReport an error on this page