What was found
INSTALLED, TESTED, AND FOUND 10 PERCENT OFF ON THE LOW SIDE, ALL RANGES. SENT BACK TO OVERHAUL SHOP. TEST PROCEDURE INDICATES A 10 MINUTE WARM-UP PERIOD IS REQUIRED. INDICATOR WAS REINSTALLED IN AIRCRAFT. WARMED UP FOR 10 MINUTES AND TESTED. FOUND TO BE ACCURATE. CONTROL NR 98-4-13.