FAA airworthiness directive publication
AD 2008-03-10
2008-02-05 · Final rule publication · Federal Register document E8-1821
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.
Scoped source model wording
Source publication: 2008-02-05 · Document E8-1821. Independent observation edition: selected-ad-source-text-extension-3.0.0.
These are exact source model cells or numbered groups. Every original condition remains in the full clause below. A cell can remain readable while its model tokenization is UNKNOWN. Manufacturer identity remains unresolved; installation, aircraft applicability, compliance and current legal status have not been determined.
(1) 525
UNKNOWN model tokenization: no model keys were inferred from this cell or list.
Ranges, shorthand, broken tokens and parenthetical or slash names have not been expanded or resolved as aliases.
(2) 525A
UNKNOWN model tokenization: no model keys were inferred from this cell or list.
Ranges, shorthand, broken tokens and parenthetical or slash names have not been expanded or resolved as aliases.
(3) 525B
UNKNOWN model tokenization: no model keys were inferred from this cell or list.
Ranges, shorthand, broken tokens and parenthetical or slash names have not been expanded or resolved as aliases.
No source observation establishes aircraft applicability or compliance. See the complete original applicability clause and official source links below.
Applicability text in this publication
Applicability
(c) This AD applies to the following airplane models and serial
numbers that have a cockpit mounted pilot relief tube installed and
are certificated in any category:
------------------------------------------------------------------------
Models Serial No.
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(1) 525............................. 0001 through 0637.
(2) 525A............................ 0001 through 0347.
(3) 525B............................. 0001 through 0152.
------------------------------------------------------------------------
Effective-date text
This AD becomes effective on March 11, 2008.
Publication context
Historical effective date recorded in the publication: 2008-03-11. This date does not establish which directive controls today.
The publication records no affected prior directives in its Affected ADs paragraph. This says nothing about the number of directives applicable to an aircraft.
Affected ADs
(b) None.
Official sources
Read the Federal Register HTML publication · Read the official PDF publication
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.