Created Thursday, Jun 17th 2021 15:27Z, last updated Thursday, Jun 17th 2021 15:30Z
A Srilankan Airbus A320-200, registration 4R-ABL performing flight
UL-206 from Muscat (Oman) to Colombo (Sri Lanka), was climbing out of Muscat when the crew noticed their ISIS (Integrated Standby Instrument System) showed unreliable airspeeds. The crew continued the climb to FL350 and continue the flight, about one hour into the flight the indications became reliable. The aircraft landed safely in Colombo about 3:50 hours after departure.
Sri Lanka's Civil Aviation Authority rated the occurrence an incident and opened an investigation.
