# AD 57-05-03: Elevator Push-Pull Tube

- Type: Airworthiness directive
- Status: Current
- Products: Piper PA-23
- Published: August 1, 1957
- Issued: August 1, 1957
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 155 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BF1075B4EC457C638625698B00764C77.0001
- DRS record last changed: November 21, 2025
- Page: https://openairdocs.org/ad/57-05-03

## The airworthiness directive

57-05-03 PIPER: Applies to Model PA-23, Serial Numbers 23-1 to 23-903 Inclusive.

Compliance required at the next 100-hour inspection but not later than May 1, 1957.

The following careful examination and action is required to overcome excessive wear and possible failure of the elevator push-pull tube.

1. Careful examination should be made of the wear area on the elevator push-pull tube at the point where it passes through the fiber rollers. Any tube that shows wear exceeding 0.005 inch must be replaced.

2. Obtain four each of nylon block, Piper P/N 19225-00 and eight AN 960-516 washers. Remove the four bearings, P/N 80012-67 and the six washers, P/N 81342-61 from the fiber roller installation and reuse in the nylon block installation. Install the above parts, except for the rollers, in accordance with the sketch and instructions shown in Piper Service Bulletin No. 151 dated February 11, 1957.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 1A10](https://openairdocs.org/tcds/1A10): Piper Aircraft Inc.; names 1 of 6 models: PA-23

## 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: 155 (155 by airframe model, 0 by engine model)
- Makers: Piper 155

Models with the most aircraft:

- [Piper PA-23](https://openairdocs.org/model/piper-pa-23): 155 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/57-05-03/models.md
Every aircraft: https://openairdocs.org/ad/57-05-03/aircraft.md

Its text cites no advisory circulars or STCs.

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