2003-10 · NASA ASRS report 594795
THE ACR DISPATCHER ADDED FERRY FUEL FOR AN MD80 FLT INTO BUR WITHOUT THE CAPT'S CONCURRENCE. THE CAPT HAD NOT REQUESTED THE FERRY FUEL.
DISPATCH RELEASE TO BUR WITH 15500 LBS OF FERRY FUEL. PULLED FLT PLAN FOR NIGHT VFR FLT TO BUR; FUEL LOAD SHOWED RELEASE FUEL 30262 LBS; FERRY 15488 LBS; TOTAL BURN 22252 LBS. PLAN ARR FUEL 23488 LBS. THE TPS (TKOF PERFORMANCE COMPUTER) SHOWED OUR ZFW TO BE 104000 LBS. THIS WOULD PUT OUR LNDG WT AT APPROX 128000 LBS; 2000 LBS BELOW MAX LNDG WT. I CALLED DISPATCHER AND ASKED WHY WE WERE FERRYING ALL THAT FUEL INTO AN ARPT WITH A RWY LENGTH OF 5802 FT. HIS REPLY WAS THAT THE COMPUTER TOLD HIM TO ADD IT; THAT IT WOULD SAVE THE COMPANY $100; SO HE DID. I ASKED IF HE THOUGHT THAT WAS WISE CONSIDERING THE RWY LENGTH AND HE REPLIED THAT IT WAS PART OF OUR FUEL COST SAVING PROGRAM AND THEN ADDED THAT HE MIGHT BE ABLE TO REACH THE FUELER AND STOP HIM FROM ADDING THE ADDITIONAL FUEL IF I WANTED HIM TO. I TOLD HIM THAT I DID INDEED WANT HIM TO STOP THE ADDITIONAL FUEL FROM BEING ADDED AND I WOULD CALL HIM FROM THE ACFT FOR A NEW RELEASE FUEL NUMBER. THE FLT WAS RE-RELEASED WITH 28300 LBS OF FUEL AT XA32Z AND WE DEPARTED ON TIME. I DO NOT THINK WE SHOULD HAVE A COMPUTER PROGRAM THAT ONLY LOOKS AT DOLLARS SAVED WHILE IGNORING SHORT RWY LENGTHS AT UNNECESSARILY HIGH LNDG WTS. NOR SHOULD WE HAVE DISPATCHERS BLINDLY FOLLOWING THE DICTATES OF THOSE PROGRAMS. NO FLT SHOULD BE FERRYING RETURN TRIP FUEL INTO ARPTS WITH RWYS CONSIDERED SHORT BY OUR OPS SPECS. SUPPLEMENTAL INFO FROM ACN 594903: CAPT ARRIVED AT AIRPLANE WITH FLT PAPERS AND SAID WE WOULD BE GETTING NEW RELEASE REFLECTING DELETION OF FERRY FUEL. CAPT DISAGREED WITH DISPATCHER'S DECISION TO ADD 15500 LBS OF FERRY FUEL INTO BURBANK'S 5800 FT RWY BECAUSE IT WOULD SAVE $100. I AGREED. THE EXTRA FUEL WOULD HAVE US LNDG NEAR MAX ALLOWABLE LNDG WT AT 128000 LBS VERSUS 112000 LBS. WITHOUT THE ADDED FUEL INCREASED OUR FLAPS 40 VREF BY 9 KTS OR 7 KTS; BASED ON 131 KTS AND 122 KTS RESPECTIVELY. FROM BASIC AERODYNAMICS CLASS I BELIEVE THAT A 7 KT INCREASE IN LNDG SPD INCREASES LNDG DISTANCE BY DOUBLE; OR 14 FT. THOUGH RELATIVELY SMALL INCREASE IN DISTANCE; I BELIEVE THIS IS WHERE DISPATCH SHOULD USE JUDGEMENT AND OVERRIDE THE FUEL SAVINGS PROGRAM. DOES $100 PAY FOR THE ADDED WEAR AND TEAR ON BRAKES AND ENGS AND INCREASED RISK OF GOING OFF THE END OF THE RWY? THOUGH TECHNICALLY POSSIBLE TO DO; I DON'T BELIEVE IT IS GOOD OPERATING PRACTICE.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.
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