Incident at ST. JOHN'S INTL NL (CYYT)

2010-07-06: UPDATE TSB: A10A0070: Speed Air 02, a Provincial Airlines Beech 200 (Registration C-GMWR) was departing St John's, NL for Stephenville, NL, when the pilot declared an emergency due to smoke in the cockpit at 10:20 UTC. The aircraft returned to St John's and landed safely at 10:32 UTC. Maintenance personnel had conducted a pressure wash of the engines during routine maintenance the previous night which had caused the smoke upon departure.

2010-06-23: SPR02, Beech 200, departed from Runway 11 in St. John?s. On the initial contact, the pilot advised of smoke in the cockpit and declared an emergency. Aircraft landed at 10:32Z without incident. TSB Case Closed.

2010-06-24: UPDATE Maintenance & Manufacturing: On take-off from St. John?s, the crew noted a strong odor in the cabin and cockpit. As they continued to climb out the smell increased and a smoke-like haze was noted throughout the aircraft. The checklist was completed and the crew received clearance to proceed back to St. John?s for an uneventful landing. Prior to landing it was noted that the smell and haze was gradually dissipating.A detailed inspection and operational check of all systems were carried out. The source was determined to the presence of a residue from the engine compressor wash solution utilized during the prior maintenance visit the night before. Although an engine cleaning rinse and engine run-up was completed following the wash, there was still enough residual solution in the engine and environmental system, to produce the resulting odor and haze once take-off and climb power was achieved in conjunction with the bleed air system. In addition to the thorough inspection and cleaning of the engine bleed air and environmental ducting, additional engine compressor rinses and subsequent high power run-ups were completed by maintenance to ensure that the systems were completely purged of any remaining cleaning solution. The aircraft was released back into service.