AN A320 HAS A HIGH SPD ABORT FOR AN ENG OVERTEMP. ENG ANTI-ICE BLEED WAS DEFERRED INOP OPEN. 4 TIRES GO FLAT AFTER RETURN TO THE GATE.

2000-08 · NASA ASRS report 481282

Date: 2000-08 · Aircraft: A320 · Phase: takeoff

Anomalies: aircraft-equipment-problem-critical|deviation-discrepancy-procedural-mel-cdl|deviation-discrepancy-procedural-published-material-policy

Synopsis

AN A320 HAS A HIGH SPD ABORT FOR AN ENG OVERTEMP. ENG ANTI-ICE BLEED WAS DEFERRED INOP OPEN. 4 TIRES GO FLAT AFTER RETURN TO THE GATE.

Narrative

AN A320 WAS DISPATCHED WITH AN MEL ENG #2 ANTI-ICE VALVE STUCK OPEN. HAD TO DO A FULL THRUST; BLEEDS OFF; THRUST BUMP TKOF FOR PERFORMANCE REQUIREMENTS. HAD TO REJECT TKOF AT 120 KTS (V1 AT 153) DUE TO #2 ENG OVERTEMP (642 DEGS C -- MAX IS 635 DEGS C). AUTOBRAKES REJECTED TKOF FEATURE ENGAGED AND ACFT DECELERATED QUICKLY. BRAKE TEMPS GOT AS HOT AS 830 DEGS C. MAINT ADVISED US TO PROCEED TO GATE WITH BRAKE FANS RUNNING AND DO NOT SET PARKING BRAKE AT GATE. UPON ARR AT GATE; ALL 4 MAINS DEFLATED BECAUSE OF HIGH TEMP FUSE PLUGS. MAINT CAME ON AND WAS NOT SURPRISED IT OVERTEMPED BECAUSE THE AIRPLANE HAD HAD '3 PREVIOUS OVERTEMPS ON TKOF PRIOR IN THE DAY.' (ALL WERE AT OR AFTER V1; SO ALL FLTS CONTINUED TO DEST). AFTER HEARING THIS; I WENT BACK 5-6 PAGES IN LOGBOOK AND DISCOVERED THE PREVIOUS OVERTEMPS -- ALL WERE INSPECTED AT DEST PER THE AIRBUS MAINT MANUAL -- OR SO THEY SAID. HAD I KNOWN ACFT HAD A HISTORY OF OVERTEMPING; I MAY HAVE ELECTED NOT TO TAKE ACFT ON SUCH A HIGH THRUST TKOF WITH HIGH OUTSIDE AIR TEMPS. FURTHERMORE; I CANNOT BELIEVE THIS ACFT WAS NOT TAKEN OTS FOR FURTHER INSPECTION AFTER SECOND OVERTEMP IN A DAY. OBVIOUSLY; A CONTRIBUTING FACTOR WAS OUR MEL CAUSING #2 ANTI-ICE VALVE TO BE STUCK OPEN. BUT THE MEL SPECIFICALLY REQUIRES 'FULL THRUST TKOFS MUST BE MADE.' AND THERE IS NO PROHIBITIONS ON THRUST BUMP USAGE IN MEL. CORRECTIVE ACTIONS SUGGESTED: 1) PROVIDE CREWS WITH A MINIMUM OF 3 DAYS ACFT MAINT HISTORY WITH RELEASE SO THAT WE CAN DETERMINE IF ANY 'PENCIL WHIPPING' IS GOING ON IN MAINT. (THIS SHOULD BE EASY WITH TODAY'S TECHNOLOGY.) THIS SHOULD BE MANDATORY AND NOT ON A 'REQUESTED BASIS OF CREW.' 2) I CAN SEE AN OCCASIONAL OVERTEMP ON ENG WHEN OPERATING IN OUTSIDE AIR TEMPS OF +100 DEGS THAT WE NORMALLY OPERATE IN PHX A AND LAS; BUT SECOND OVERTEMP SHOULD HAVE GNDED ACFT IMMEDIATELY FOR FURTHER ENG/BLEED ANALYSIS. 3) PERHAPS MEL CONCERNING ENG ANTI-ICE VALVE STUCK OPEN SHOULD BE READDRESSED TO CONTAIN LIMITATIONS ON MAX OUTSIDE AIR TEMPS FOR TKOF AND NO THRUST BUMPS ALLOWED WHILE OPERATING UNDER THE MEL PROVISIONS. 4) INCREASE TRAINING ON HOW TO HANDLE SUCH HOT BRAKES ON A REJECTED TKOF; IE; WHAT TEMPS DO TIRE FUSE PLUGS BLOW? WHAT TEMPS SHOULD WE CONSIDER CALLING FIRE EQUIP; ETC?

Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.

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