LAHORE - The on-going go-slow of PALPA continues for the fifth day, PIA spokesman said here on Wednesday. First officer S. Jamal was on a scheduled flight duty on PK 787 on Wednesday, 28 July from Jinnah International Airport, Karachi to London, Heathrow scheduled to depart at 0930 AM. The departure was rescheduled at 1030 AM due to operational reasons when first officer S Jamal refused to fly the aircraft and left the cockpit. Because of his last minute refusal to operate the flight, a delay of over five hours occurred. Another first officer had to be called on duty and the flight was unnecessarily delayed due to the negligence of first officer S Jamal. Managing Director PIA, Captain Muhammad Aijaz Haroon has ordered an immediate inquiry against first officer S. Jamal for his negligence in duty, spokesman concluded.