# AD 74-14-04: Reduced Weight Placard

- Type: Airworthiness directive
- Status: Current
- Products: Piper PA-28-151
- Effective: August 14, 1974
- Published: August 8, 1974
- Issued: August 2, 1974
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-1916
- Registered aircraft: 961 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/64AB2D6AA315B56486256E1200498FB7.0001
- DRS record last changed: November 21, 2025
- Page: https://openairdocs.org/ad/74-14-04

## The airworthiness directive

74-14-04 PIPER: Amendment 39-1886 as amended by Amendment 39-1916. Applies to Piper PA-28-151 airplanes serial numbers 28-7415001 through 28-7415530, 28-7415532 through 28-7415534, and 28-7415537 through 28-7415538, certificated in all categories. Compliance required as indicated. To insure required positive margin of safety, accomplish the following:

  (a) Effective immediately and until further notice by airworthiness directive, flight operations shall be conducted at 2150 pounds or less for normal category operation and 1825 pounds or less for utility category operations.

  (b) Within ten hours time in service after receipt of this airmail letter, install a placard on the instrument panel in full view of the pilot with the following wording:

"NORMAL CATEGORY MAXIMUM GROSS WEIGHT - 2150 POUNDS, UTILITY CATEGORY MAXIMUM WEIGHT - 1825 POUNDS. THIS PLACARD INSTALLED PER FAA AIRWORTHINESS DIRECTIVE ISSUED JUNE 12, 1974."

The letters on the above placard shouldbe at least one eighth inch in height and on a suitable material which can be expected to remain affixed in position and resist deterioration.

  (c) The maximum weights specified in the limitation section of the PA-28-151 airplane flight manual must be changed by appropriate entry from 2325 pounds to 2150 pounds for normal category and from 1950 pounds to 1825 pounds for utility category. Note: The forward center of gravity limit in normal category operation becomes 85.1 inches aft of datum.

  (d) After installation of Piper Kit 760878V in accordance with Piper Service Bulletin Number 424 or equivalent modification approved by the Chief, Engineering and Manufacturing Branch, FAA, Southern Region, the airplane may be operated up to 2325 pounds gross weight in the normal category and up to 1950 pounds gross weight in the utility category. After modification the placard as called for in paragraph (b) is to be removed and the limitation section of the PA-28-151 Airplane Flight Manual must reflect maximum weights of 2325 and 1950 for normal and utility categories respectively.

Amendment 39-1886 was effective July 8, 1974 and was effective upon receipt for all recipients of the airmail letters dated June 12, 1974 and June 19, 1974 which contained this amendment.

This Amendment 39-1916 becomes effective August 14, 1974.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 2A13](https://openairdocs.org/tcds/2A13): Piper Aircraft Inc.; names 1 of 18 models: PA-28-151

## 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: 961 (961 by airframe model, 0 by engine model)
- Makers: Piper 961

Models with the most aircraft:

- [Piper PA-28-151](https://openairdocs.org/model/piper-pa-28-151): 961 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/74-14-04/models.md
Every aircraft: https://openairdocs.org/ad/74-14-04/aircraft.md

Its text cites no advisory circulars or STCs.

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