# AD 90-13-10: Cockpit Voice & Flight Data Recorders

- Type: Airworthiness directive
- Status: Current
- Products: Maryland Air Industries F-27, F-27A, F-27B, F-27F, F-27G, F-27J and F-27M
- Effective: July 23, 1990
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-6636
- Docket: 90-NM-43-AD
- Registered aircraft: 1 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/865DF70F5E4C216386256A2500619B5D.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/90-13-10

## The airworthiness directive

90-13-10 FOKKER: Amendment 39-6636. Docket No. 90-NM-43-AD. Applicability: Model F27 series airplanes, Serial Numbers 10102 through 10684, 10686, 10687, and 10689 through 10692, certificated in any category.

Compliance: Required within 180 days after the effective date of this AD, unless previously accomplished.

To prevent loss of cockpit voice recorder and flight data recorder information, accomplish the following:

A. Modify the voice recorder by installing wiring, an impact switch, a power relay, and a circuit breaker, in accordance with Fokker Service Bulletin F27/23-27, dated August 14, 1989.

B. Modify the flight data recorder by installing wiring, an impact switch, a power relay, and a circuit breaker, in accordance with Fokker Service Bulletin F27/31-11, dated August 14, 1989.

C. 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.

NOTE: The request should be submitted directly to the Manager, Standardization Branch, ANM- 113, FAA, Northwest Mountain Region, and a copy sent to the cognizant FAA Principal Maintenance Inspector (PMI). The PMI will then forward comments or concurrence to the Standardization Branch, ANM-113.

D. Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD.

All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to Fokker Aircraft USA, Inc., 1199 N. Fairfax Street, Alexandria, Virginia 22314. These documents may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 17900 Pacific Highway South, Seattle, Washington, or the Standardization Branch, 9010 East Marginal Way South, Seattle, Washington.

This amendment (39-6636, AD 90-13-10) becomes effective on July 23, 1990.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 7A1](https://openairdocs.org/tcds/7A1): Maryland Air Industries Inc.; names 7 of 12 models: F-27, F-27A, F-27M, F-27J, F-27F, F-27B, F-27G

## 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: 1 (1 by airframe model, 0 by engine model)
- Makers: Fairchild 1

Models with the most aircraft:

- [Fairchild F-27F](https://openairdocs.org/model/fairchild-f-27f): 1 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/90-13-10/models.md
Every aircraft: https://openairdocs.org/ad/90-13-10/aircraft.md

Its text cites no advisory circulars or STCs.

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