# AD 87-03-02: Tail Deicing System

- Type: Airworthiness directive
- Status: Current
- Products: Saab AB, Saab Aerosystems 340A (SAAB SF340A)
- Effective: February 12, 1987
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-5511
- Registered aircraft: 8 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BB4149C1042DA347862569F30057608E.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/87-03-02

## The airworthiness directive

87-03-02 SAAB FAIRCHILD: Amendment 39-5511. Applies to Model SF-340A series airplanes, serial numbers 03 through 044, certificated in any category. Compliance is required as indicated below, unless previously accomplished. To prevent partial loss of control as a result of an inoperative tail deicing system, accomplish the following:

A. Within the next 90 days after the effective date of this AD, install a tail deicer valve heater blanket and its associated equipment in accordance with SAAB Fairchild Service Bulletin SF340-30-015, Revision 1, dated December 13, 1985.

B. An alternate means of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM-113, FAA, Northwest Mountain Region.

C. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base for the accomplishment of the modification required by this AD.All persons affected by this directive who have not already received the appropriate service document from the manufacturer may obtain copies upon request to SAAB Aircraft, Product Support AB, S-58188, Linkoping, Sweden. This document may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or the Seattle Aircraft Certification Office, 9010 East Marginal Way South, Seattle, Washington.

This amendment becomes effective February 12, 1987.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A52EU](https://openairdocs.org/tcds/A52EU): Saab AB; names 1 of 2 models: 340A (SAAB SF340A)

## 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: 8 (8 by airframe model, 0 by engine model)
- Makers: Saab-Fairchild 8

Models with the most aircraft:

- [Saab-Fairchild 340A](https://openairdocs.org/model/saab-fairchild-340a): 8 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/87-03-02/models.md
Every aircraft: https://openairdocs.org/ad/87-03-02/aircraft.md

Its text cites no advisory circulars or STCs.

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