What was found
SAL - FLT TA-380 - AFTER TAKEOFF, THE FIRST OFFICER AIRSPEED INDICATOR WENT TO ZERO KNOTS AND FIRST OFFICER''S ALTIMETER HAD A READ-OUT OF 4,000 FEET AT FL 260. THE AIRCRAFT RETURNED TO EL SALVADOR STATION FOR MAINTENANCE. AFTER AN UNEVENTFUL LANDING AT SAL AIRPORT, MAINTENANCE TECHNICIANS PERFORMED TROUBLESHOOTING PER AMM 34-11. IT WAS FOUND THAT ONE OF THE HOSES AT THE F/O''S ALTIMETER DAMAGED. REMOVED AND REPLACED PER AMM 20-10-52. TEST PERFORMED PER AMM 34-11. NORMAL RESULTS WERE FOUND, AIRCRAFT RETURNED TO OPERATION. (X)