AC 121-26 DATE 6/29/81 ADVISORY CIRCULAR .
DEPARTMENT OF TRANSPORTATION Federal Aviation Administration Washington, D.C.
FARGUIR?WCEMR!I'T3RIAL, , Subject: AIRE0R!IS- REQUIRED mTA 1 l PURPOSE. This advisory circular provides guidance as to acceptable methods for canpliance with changes to the Federal Aviation Regulations (FAR) 121,97(b) and
121.117(b).
2 BACK-. The Federal Aviation Administration determined that previous rules which described airport data and its dissemination were inadequate. The National Transportation Safety Board (NTSB) Report 72-17 also stated that irregularities in the collection and dissemination of airport information cause the air carrier operational control system to be ineffective. Therefore, .Sections 121.97 and
121.117 were changed to require the affected carriers to establish a program to obtain, maintain, and distribute specific data on the airports that they use.
3 DISCUSSION. The new rules, Sections 121,97(b) and 121.117'(b) I state that in pertinent part, after September 9, 1981, each air carrier or mmercial operator must show that it has an approved system for obtaining, maintaining, and distributing to appropriate personnel current aeronautical data for each airport that it uses to ensure a safe operation at that airport. The aeronautical data must include the following: (1) Airports, (2) Runways, clearways, and stopways, (3) Displaced thresholds, (4) Obstacles, (5) Instrument flight procedures, and (6) Special information.
4 aATASYSTEIMREQUIRWEN!B. The objective of this requirement is that each carrier develop a system that provides apprapriate flight and ground personnel all the current airport data necessary for the safe operation of each flight. The Administrator will apprave any system that can be demnstrated to meet this objective, The principal operations inspector assigned to each carrier is the appropriate person fran which to se& approval.
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BERNARD A. GEIER Acting Director of Flight Operations Initiated by: AFO- 260