# AD 83-14-08: Stall Characteristics

- Type: Airworthiness directive
- Status: Current
- Products: Piper PA-38-112
- Effective: August 26, 1983
- Published: July 21, 1983
- Issued: July 12, 1983
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-4691
- Registered aircraft: 442 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/562EE35F17AC576C862569A6005C94ED.0001
- DRS record last changed: November 21, 2025
- Page: https://openairdocs.org/ad/83-14-08

## The airworthiness directive

83-14-08 PIPER: Amendment 39-4691. Applies to Model PA-38-112 (S/Ns 38-78A0001 through 38-79A0582) airplanes certificated in any category.

Compliance: Required within the next 100 hours time-in-service after the effective date of this AD, unless already accomplished.

To standardize and improve the stall characteristics, accomplish the following:

a) Install Piper Flow Strip Installation Kit, Part No. 763-930.

b) Replace the airspeed indicator with Piper Part No. 61906-02 or 61905-02, or alter the original airspeed indicator markings to read as follows:

1) Red radial 138 knots.

2) Yellow arc from 110 to 138 knots.

3) Green arc from 52 to 110 knots.

4) White arc from 49 to 89 knots.

If the instrument is remarked, it must be accomplished by a certificated and appropriately rated instrument repair station.

c) Insert Piper Part No. 761-658, Revision 3, dated December 18, 1978, containing performance information applicable to airplanes with Kit P/N 763-930 installed in the Pilot's Operating Handbook.

d) Airplanes may be flown in accordance with FAR 91.197 to a location where this AD may be accomplished.

e) An equivalent method of compliance with this AD may be used if approved by the Manager, New York Aircraft Certification Office, FAA, Room 202, 181 South Franklin Avenue, Valley Stream, New York 11581.

Piper Service Letter No. 876 dated April 12, 1979, covers the subject matter of this AD.

This amendment becomes effective on September 27, 1983.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A18SO](https://openairdocs.org/tcds/A18SO): Piper Aircraft Inc.; names 1 of 1 models: PA-38-112

## 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: 442 (442 by airframe model, 0 by engine model)
- Makers: Piper 442

Models with the most aircraft:

- [Piper PA-38-112](https://openairdocs.org/model/piper-pa-38-112): 442 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/83-14-08/models.md
Every aircraft: https://openairdocs.org/ad/83-14-08/aircraft.md

Its text cites no advisory circulars or STCs.

## NTSB investigations that cite this AD (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB ATL85FA147](https://openairdocs.org/ntsb/ATL85FA147), Apr 26, 1985: Piper PA-38-112 (N2490A), Monroe, NC, destroyed, 1 fatal

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