FAA airworthiness directive publication
AD 98-04-38
1998-02-18 · Final rule publication · Federal Register document 98-3920
This page records a selected historical publication. Its current legal status, applicability to an individual aircraft and compliance have not been determined. Consult the current FAA directive and aircraft configuration and maintenance records.
Literal model wording
Source publication: 1998-02-18 · Document 98-3920. Observation edition: selected-ad-source-text-extension-2.0.0.
These are exact source labels for discovery. Manufacturer identity remains unresolved. Serial numbers, installed equipment and all other conditions have not been evaluated. The complete applicability clause below retains all conditions and notes.
500, 501, 550, 551, and 560
The source says “series”; the label has not been expanded to other models.
Source opening:
Applicability:
These observations do not determine aircraft applicability, compliance, installed configuration or current legal status.
Original legacy operative paragraph
Source publication: 1998-02-18 · Document 98-3920. Independent observation edition: selected-ad-source-text-extension-3.0.0.
This paragraph is newly retained from the same immutable official publication. It is a legacy §39.13 amendment and the publication’s own AD header, not a newly invented Affected ADs heading. The earlier observation edition remains unchanged.
2. Section 39.13 is amended by adding the following new airworthiness directive: 98-04-38 Cessna Aircraft Company: Amendment 39-10350. Docket 97-NM- 170-AD.
UNKNOWN historical relationship: adding a new entry does not establish that no earlier directives are affected. No explicit historical replacement statement was established in this bounded operative paragraph.
Applicability text in this publication
Applicability: Model 500, 501, 550, 551, and 560 series
airplanes equipped with pneumatic deicing boots, certificated in any
category.
Note 1: This AD applies to each airplane identified in the
preceding applicability provision, regardless of whether it has been
modified, altered, or repaired in the area subject to the
requirements of this AD. For airplanes that have been modified,
altered, or repaired so that the performance of the requirements of
this AD is affected, the owner/operator must request approval for an
alternative method of compliance in accordance with paragraph (b) of
this AD. The request should include an assessment of the effect of
the modification, alteration, or repair on the unsafe condition
addressed by this AD; and, if the unsafe condition has not been
eliminated, the request should include specific proposed actions to
address it.
Effective-date text
This amendment becomes effective on March 25, 1998.
Publication context
Historical effective date recorded in the publication: 1998-03-25. This date does not establish which directive controls today.
A relationship to prior directives has not been established from this publication.
Official sources
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Sources retrieved: HTML 2026-09-08; PDF 2026-09-08.
The displayed text comes from the HTML publication. Refer to the official documents for the original wording.
This selected source edition is not a complete list of current airworthiness directives. Referenced manufacturer service documents are not reproduced here.