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|
Attributes | |
ACN | 707062 |
Time | |
Date | 200608 |
Local Time Of Day | 0601 To 1200 |
Place | |
Locale Reference | airport : eham.airport |
State Reference | FO |
Altitude | agl single value : 0 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Operator | common carrier : air carrier |
Make Model Name | B747-200 |
Operating Under FAR Part | Part 121 |
Flight Phase | ground : takeoff roll |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain observation : company check pilot |
Qualification | pilot : atp |
Experience | flight time last 90 days : 75 flight time total : 15000 flight time type : 5500 |
ASRS Report | 707062 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer instruction : trainee |
Events | |
Anomaly | aircraft equipment problem : critical |
Independent Detector | other flight crewa other flight crewb |
Resolutory Action | flight crew : rejected takeoff |
Consequence | other |
Supplementary | |
Problem Areas | Airport Flight Crew Human Performance Aircraft |
Primary Problem | Flight Crew Human Performance |
Narrative:
In a B747-200 at 790000 pounds takeoff weight; we pushed back. Ground advised a long taxi around taxiway B from spot right ramp. We taxied from taxiway right ramp around the entire airport on taxiway B around runway 36C because of departures out to runway 36L. This is the longest taxi route possible at eham airport. We took the runway (runway 36L) and cleared for takeoff as a check airman. I was doing operating experience with new hire student. I gave him the aircraft and completed checklist. As first officer pushed up thrust lever; there was a muffled bang type sound. Since we had a 90 degree crosswind from the left; I felt maybe we had compressor stalled the downwind engine; but all parameters for engines normal. Also; the aircraft had rolled a small amount and first officer was a little aggressive on brakes and stopped aircraft roll. No other indications showed abnormal so we started takeoff roll. At about 110 KTS another bang and aircraft began vibrating very heavy. Since we also had a lot of birds on takeoff; I felt we had an engine problem and had took in birds. The aircraft seemed to stop accelerating so I took over and rejected takeoff. We stopped on runway 36L. Post-reject revealed 3 blown tires all on rear body and various damage to fuselage and landing gear from tire rubber. 20 mins later; as expected; 5 more thermalled from overheat from reject. Runway inspection revealed first tire blew at takeoff roll. Hence first 'bang' possibly tire had overheated on long taxi although after reject all brakes show initially 1/4 in the yellow on temperature monitors. Really tire should not blown only thermalled early on. Second tire blew at 110 KTS and third sometime later -- all engines no damage.
Original NASA ASRS Text
Title: B747-200 FLT CREW HAS TIRES FAIL ON TKOF ROLL; REJECT TKOF AT EHAM; FO.
Narrative: IN A B747-200 AT 790000 LBS TKOF WT; WE PUSHED BACK. GND ADVISED A LONG TAXI AROUND TXWY B FROM SPOT R RAMP. WE TAXIED FROM TXWY R RAMP AROUND THE ENTIRE ARPT ON TXWY B AROUND RWY 36C BECAUSE OF DEPS OUT TO RWY 36L. THIS IS THE LONGEST TAXI RTE POSSIBLE AT EHAM ARPT. WE TOOK THE RWY (RWY 36L) AND CLRED FOR TKOF AS A CHK AIRMAN. I WAS DOING OPERATING EXPERIENCE WITH NEW HIRE STUDENT. I GAVE HIM THE ACFT AND COMPLETED CHKLIST. AS FO PUSHED UP THRUST LEVER; THERE WAS A MUFFLED BANG TYPE SOUND. SINCE WE HAD A 90 DEG XWIND FROM THE L; I FELT MAYBE WE HAD COMPRESSOR STALLED THE DOWNWIND ENG; BUT ALL PARAMETERS FOR ENGS NORMAL. ALSO; THE ACFT HAD ROLLED A SMALL AMOUNT AND FO WAS A LITTLE AGGRESSIVE ON BRAKES AND STOPPED ACFT ROLL. NO OTHER INDICATIONS SHOWED ABNORMAL SO WE STARTED TKOF ROLL. AT ABOUT 110 KTS ANOTHER BANG AND ACFT BEGAN VIBRATING VERY HVY. SINCE WE ALSO HAD A LOT OF BIRDS ON TKOF; I FELT WE HAD AN ENG PROB AND HAD TOOK IN BIRDS. THE ACFT SEEMED TO STOP ACCELERATING SO I TOOK OVER AND REJECTED TKOF. WE STOPPED ON RWY 36L. POST-REJECT REVEALED 3 BLOWN TIRES ALL ON REAR BODY AND VARIOUS DAMAGE TO FUSELAGE AND LNDG GEAR FROM TIRE RUBBER. 20 MINS LATER; AS EXPECTED; 5 MORE THERMALLED FROM OVERHEAT FROM REJECT. RWY INSPECTION REVEALED FIRST TIRE BLEW AT TKOF ROLL. HENCE FIRST 'BANG' POSSIBLY TIRE HAD OVERHEATED ON LONG TAXI ALTHOUGH AFTER REJECT ALL BRAKES SHOW INITIALLY 1/4 IN THE YELLOW ON TEMP MONITORS. REALLY TIRE SHOULD NOT BLOWN ONLY THERMALLED EARLY ON. SECOND TIRE BLEW AT 110 KTS AND THIRD SOMETIME LATER -- ALL ENGS NO DAMAGE.
Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.