New cartridge fitted to exhaust gas analyser - starboard side. Spare adapter plug fitted to carburettor air scoop for temperature gauge line. Engines run up on ground. Petrol pressure on starboard engine too low. Petrol pump removed.
Original petrol pump valve and seat ground in to remove uneveness.
Pump fitted to engine. Engines run up on ground and tested in air. Both engines okay. Engines, instruments and aircraft approved okay by Miss Earhart. During most of the day on June 30th attempts were made by our Wireless Operator, Mr. H. Balfour, to obtain time signals for chronometer setting at the request of Captain Noonan and Miss Earhart.