AD 94-25289
Published 1994-10-13 · 1 model · 9 US-registered tails affected · Federal Register
Airworthiness Directives; Jetstream Aircraft Limited (Formerly British Aerospace, Regional Airlines Limited) Jetstream Model 3101 Airplanes Federal Register ↗
Abstract
This document proposes to revise an earlier proposed airworthiness directive (AD), which would have superseded AD 91-08-01. That AD currently requires the following on Jetstream Aircraft Limited (JAL) Jetstream Model 3101 airplanes: revising the maximum speed for flaps at 50 degrees from 153/149 knots indicated airspeed (KIAS) to 130 KIAS; and limiting the maximum flap extension to 20 degrees anytime ice is present on the airplane. The previous notice proposed to provide the option of incorporating a flap system modification that would eliminate the requirements of AD 91-08-01. Since publication of that proposal, the Federal Aviation Administration (FAA) has re-examined all information related to this subject, and has determined that the flap system modification should be made mandatory rather than optional. The proposed actions are intended to prevent sudden pitch down of the airplane during icing conditions, which could lead to loss of control of the airplane.
Applicability · by US fleet size
- AIRBORNE EDGE 9 tails
Compliance instructions
Required actions, compliance times, parts/serial numbers and methods of compliance are in the Federal Register publication — not paraphrased here. Read AD on Federal Register ↗