Airworthiness directives › 2014-03-03
AD 2014-03-03 Airworthiness Directives; Cessna Aircraft Company Airplanes
Makes named: cessna. Models named: 310, 320, 340, 401, 402, 411, 414, 421. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to Cessna Aircraft Company Models 310, 320, 340, 401, 402, 411, 414, and 421 airplanes identified in Cessna Aircraft Company Service Bulletin MEB97-4, dated March 24, 1997, certificated in any category.
Compliance
Comply with the actions specified in paragraphs (g) through (i) of this AD, to include all subparagraphs, unless already done.
Required actions
Within 100 hours time-in-service (TIS) after April 7, 2014 (the effective date of this AD) or within 3 calendar months after April 7, 2014 (the effective date of this AD), whichever occurs first, incorporate the operational limitations by accomplishing either paragraph (g)(1) or (g)(2) of this AD, to include all subparagraphs: (1) Incorporate the limitations identified in Appendix 1 of this AD into your airplane maintenance records and install a copy of the approved supplemental airplane flight manual/airplane flight manual supplement (SAFM/AFMS) in Appendix 1 of this AD in the airplane accessible to the pilot; or (2) Install the following placards: (i) Cessna placard part number (P/N) DP0500-13 or a placard that states: “This airplane is prohibited from flight into known icing conditions.” If installing the Cessna placard P/N DP0500-13, obtain the placard following Cessna Aircraft Company Service Bulletin MEB97-4, dated March 24, 1997; and (ii) An additional placard for the applicable airspeed indicator readings listed in paragraph (g)(2)(A) or (g)(2)(B) below, as applicable: (A) If Airspeed Indicator Reads in MPH. Placard states: “For inadvertent encounters with icing conditions, increase published airspeed on approach at least 17 mph.” (B) If Airspeed Indicator Reads in Knots. Placard states: “For inadvertent encounters with icing conditions, increase published airspeed on approach at least 15 KIAS.”
Unsafe condition
This AD was prompted by an investigation of recent and historical icing-related accidents and incidents for the products listed above. We are issuing this AD to prohibit flight into known icing conditions as well as increase the approach speed in case of an inadvertent encounter with icing. This condition, if not corrected, could result in unusual flight characteristics that could lead to loss of control after flight into known icing conditions or an inadvertent encounter with icing conditions. Based on the data, an example of the unusual flight characteristics seen in many of the accidents is high sink speeds that resulted in a hard landing.
Affected ADs
None.
Read the original on the Federal Register →
You just looked this one up by hand
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1