COMPANY MGMNT RELIEVED CAPT OF THE ASSIGNMENT OF OPERATING A B747-200 WHEN HE REFUSED TO TAKE THE FLT DUE TO MALFUNCTIONING OR FAILED FUEL QUANTITY GAUGES. HE WAS ALSO INSTRUCTED TO NOT MAKE AN ENTRY IN THE MAINT LOGBOOK OF FUEL GAUGE DISCREPANCIES; OR TO ALLOW THE FE TO MAKE AN ENTRY EITHER. ANOTHER FLC WAS ASSIGNED TO TAKE THE FLT.

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ON NOV/XA/99; MYSELF (CAPT); FO AND FE WERE ASSIGNED TO OPERATE ACR X FLT SCHEDULED TO OPERATE TLV TO PARIS CDG. THIS WAS OUR SECOND ATTEMPT TO FLY THIS ACFT; HAVING REFUSED 2 DAYS EARLIER DUE TO INACCURATE FUEL QUANTITY GAUGES WHEN RELATED TO FLT MANUAL AND DRIP STICK INDICATIONS. OF THE 7 TANKS WE WOULD USE DURING THIS FLT; WE CONSIDERED 6 TOO INACCURATE -- AS FOLLOWS: #1 AND #4 RESERVE AND #3 MAIN TANK INDICATORS WERE MAINT DDPG DEFERRED AS UNSVCABLE. CTR WING WAS APPROX 4000 LBS LOW INDICATION; #1 AND #4 MAIN; FOLLOWING EXTENSIVE CREW AND COMPANY COMPUTATION WERE DETERMINED TO BE INDICATING 2000 LBS AND 2400 LBS LOW; OR 6.5 AND 7.7% RESPECTIVELY (ONLY 1 MAIN TANK INDICATOR MAY BE DEFERRED). ALTHOUGH OUR PREVIOUS MAINT WRITE-UP OF 2 DAYS EARLIER HAD BEEN CLRED BY COMPANY MAINT AS WITHIN LIMITS BASED UPON FALSE AND INCORRECT STICK READINGS. WE CONTACTED COMPANY OPS AND HAD A CONFERENCE CALL WITH MYSELF. THE CEO; CHIEF PLT; ACR; AND CHIEF FE. THE CHIEF PLT CONCURRED WITH OUR METHOD AND CALCULATIONS AND AT NO TIME DID ANY OF THE ABOVE QUESTION THE VALIDITY OR ACCURACY OF OUR STATEMENTS. SUBSEQUENT TO OUR CONFERENCE CALL AND LATER BEING 'RELEASED FROM DUTY' BY MR COMPANY MGR SPECIFICALLY DIRECTED ME NOT TO MAKE ANY ENTRY INTO THE MAINT LOG AND ALSO TO PREVENT FE FROM MAKING ANY ENTRY. THIS IS NOT ONLY DANGEROUS BUT OF QUESTIONABLE LEGALITY. COMPANY MGMNT SUBSEQUENTLY ASSIGNED ANOTHER CREW AND IT APPEARS ATTEMPTED TO DECEIVE THEM OF THE SIT. THE ACFT DEPARTED TLV TO PARIS ON NOV/XA/99 AT APPROX XA00 TO PARIS CDG WITH OVER 400 PAX AND A TKOF WT OF APPROX 820000 LBS (MAX). THIS WAS A CLR AND DELIBERATE ATTEMPT BY COMPANY MGMNT TO COERCE AND INTIMIDATE A CREW INTO OPERATING A NON AIRWORTHY ACFT AND FURTHER; TO FALSIFY A CONDITION BY NOT ALLOWING US TO ENTER THE DISCREPANCIES INTO THE MAINT LOG.