AD 71-18-03

Airworthiness directive · Left Nose Wheel Door Hinge · Wheel well doors (Apache Modification STC SA598SW)

Effective
September 2, 1971
Published
September 1, 1971
Issued
August 20, 1971
Models
PA-23, PA-23-160, PA-23-235, PA-23-250 (Navy UO-1), PA-E23-250
Data sheet
TCDS1A10
Registered aircraft
1,267 matched by model
Product
Aircraft · Small airplane
Amendment
39-1278

Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed November 21, 2025.

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The airworthiness directive

71-18-03 PIPER AIRCRAFT CORPORATION: Amdt. 39-1278. Applies to Piper PA- 23 series airplanes, modified by installing nose wheel well doors in accordance with Supplemental Type Certificate SA598SW, certificated in all categories.

Compliance required within the next fifty hours' time in service after the effective date of this airworthiness directive, unless already accomplished.

To prevent interference between the left rear nose wheel door hinge and Piper P/N 17238-00 or -04 tube assembly, accomplish the following:

Replace existing left rear nose wheel well door hinge and hinge bracket parts with redesigned parts in accordance with J. W. Miller Aviation, Inc., Engineering Order B1 to Drawing 201, dated June 4, 1969, or with equivalent parts and methods approved by the Chief, Engineering and Manufacturing Branch, Southwest Region, Federal Aviation Administration, Fort Worth, Texas.

(NOTE: Copies of J. W. Miller Aviation, Inc., Engineering Order B1 to Drawing 201 may be obtained from the company at P.O. Box 16203, San Antonio, Texas 78216.)

This amendment becomes effective September 2, 1971.

Affected TCDS · 1

The type certificate data sheets for the models this AD names, matched by model and maker.

Registered aircraft · 1,267

Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.

By aircraft maker
  • Piper1,267 aircraft
By year built
19531995
Registered aircraft by year built: 1,010 aircraft
19531
19549
195534
195634
195745
195850
195960
196048
196127
196228
196332
196428
196545
196660
196731
196839
196949
197019
197124
197227
197344
197449
197536
197652
197735
197836
197946
198011
198110
19951

257 with no year recorded

By model

Aircraft

See all 1,267 aircraft