# AD 64-16-06: Nose Gear Retraction Tubes

- Type: Airworthiness directive
- Status: Current
- Products: Piper PA-30
- Effective: August 20, 1964
- Published: July 21, 1964
- Issued: July 14, 1964
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 878 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B8E43BF2C7FE15CE862569970057FDBD.0001
- DRS record last changed: November 21, 2025
- Page: https://openairdocs.org/ad/64-16-06

## The airworthiness directive

64-16-06 PIPER: Amdt. 767 Part 507 Federal Register July 21, 1964. Applies to Model PA-30 Aircraft, Serial Numbers 30-41, 30-82, 30-83, 30-104 and 30-123.

Compliance required within 25 hours' time in service after the effective date of this AD unless already accomplished.

Because of the possible presence of welds with inadequate penetration in the nose gear retraction tube, replace the present tube with a redesigned nose gear retraction tube, Piper P/N 21109-05.

NOTE: The new tube can be identified by the two bead weld slots on each end of the tube.

(Piper Service Letter No. 409, dated October 9, 1963, provides replacement method instructions.)

This directive effective August 20, 1964.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A1EA](https://openairdocs.org/tcds/A1EA): Piper Aircraft Inc.; names 1 of 3 models: PA-30

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 878 (878 by airframe model, 0 by engine model)
- Makers: Piper 878

Models with the most aircraft:

- [Piper PA-30](https://openairdocs.org/model/piper-pa-30): 878 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/64-16-06/models.md
Every aircraft: https://openairdocs.org/ad/64-16-06/aircraft.md

Its text cites no advisory circulars or STCs.

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