ANSP info/procedural error involving a The Boeing Company 737-376, VH-TJB, Launceston, TAS on 2 April 1993

The initial clearance passed to the crew of VH-TJB was for cruise at FL 350. Sector 3E contacted Launceston Tower with an amendment for the aircraft to cruise at FL 330. After departure the crew reported on climb to FL 350. The error happened because the Launceston Aerodrome Controller became pre-occupied with another task and omitted to pass the amended level details onto the crew. The situation was recognised and resolved before the aircraft reached FL 330.