Airworthiness Directive

AD 2010-18-12 75 FR 53861 Active

Federal Aviation Administration · 14 CFR part 39

Requires you to do a one-time inspection of the flap operating system for an unapproved latch plate design installation, with replacement as necessary.

FR document
2010-21741
Amendment
39-16426
Published
2010-09-02
Effective
2010-10-07
Models covered
1

Last live check: 2026-08-19

This page is a reference Record, not an airworthiness or compliance determination. Official FAA and manufacturer sources control over our restatement, subject to governing law. Check applicability, current requirements and incorporated documents before acting. The owner or operator remains responsible for airworthiness and required records under 14 CFR 91.403 and 91.417, as applicable. Terms of Use: /terms.
AD

2010-18-12

FR doc 2010-21741 · 75 FR 53861

AD 2010-18-12Published 2010-09-02Effective 2010-10-07

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Requires you to do a one-time inspection of the flap operating system for an unapproved latch plate design installation, with replacement as necessary.

Published in the Federal Register as AD 2010-18-01; the FAA corrected the number to AD 2010-18-12 in a later notice, listed with this record. The printed number still reaches this page.

1 correction to this AD FAA · 2010-09-23

Correction published 2010-09-23

Issued by
Federal Aviation Administration
Published
2010-09-23
Document
Federal Register 2010-23745 · Final rule; correction

The FAA is correcting an airworthiness directive (AD) that published in the Federal Register. That AD applies to the products listed above. The AD number in the 14 CFR Part 39 section and the Sec. 39.13 [Amended] section is incorrect. This document corrects that error. In all other respects, the original document remains the same.

A correction restates part of an AD that was published incorrectly. It is not an additional requirement and it does not change the AD number or its effective date.

Source: Federal Register document 2010-23745, retrieved 2026-08-17

Full official abstract

We are adopting a new airworthiness directive (AD) for all Robert E. Rust, Jr. Models DeHavilland DH.C1 Chipmunk 21, DH.C1 Chipmunk 22, and DH.C1 Chipmunk 22A airplanes. This AD requires you to do a one-time inspection of the flap operating system for an unapproved latch plate design installation, with replacement as necessary. This AD results from a report of a latch plate failing in service that was not made in accordance with the applicable de Havilland drawing. We are issuing this AD to detect and correct an unauthorized latch plate design installation which could result in an un-commanded retraction of the flaps. This failure could lead to a stall during a landing approach.

More directives for de Havilland DHC-1 Chipmunk

  1. AD 2003-17-16 Airworthiness Directives; Robert E. Rust Models DeHavilland DH.C1 Chipmu... Effective 2003-10-10
  2. AD 2003-05-05 Airworthiness Directives; Robert E. Rust Models DeHavilland DH.C1 Chipmu... Effective 2003-04-25
  3. AD 2003-05-06 Airworthiness Directives; Robert E. Rust Models DeHavilland DH.C1 Chipmu... Effective 2003-04-25

All de Havilland DHC-1 Chipmunk directives

Applies to 1 model in our index