Air carrier medium large transport lost a tire tread during takeoff from phl, continued to mia.

Attributes
ACN	161987
Time
Date	199011
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mia airport : phl
State Reference	PA
Altitude	agl bound lower : 0 agl bound upper : 30
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : iah
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : initial
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 210 flight time total : 8000 flight time type : 2500
ASRS Report	161987
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	none taken : anomaly accepted
Consequence	other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Lost tread from #3 main tire on takeoff. No indication of tire failure in cockpit or cabin (had a dead heading captain and first officer sitting directly over wing in cabin). As aircraft lifted off, right main indicator went unsafe and green indicators for the other gear went out. All engine INS remained steady and normal. No airframe vibration or any other nose. Misdiagnosed problem as a gear indication problem. No calls from other sources advising of a failure. Was selcaled by the company an hour after takeoff to advise that phl tower had found rubber on the runway and that it might have been my aircraft. Had advised phl departure when initially contacted them that we would operate at reduced airspeed while we sorted out gear indication problem. Also talked to company maintenance about the problem before continuing on to mia. Had expected to have to visually verify gear down in mia (company major maintenance base). When advised of rubber on runway, knew what the problem was. Didn't change decision to inspect gear through the floor view port, but now knew why. Tire tread (recap) tore up trailing edge of right flap and dented engine nacelle. Small chunk went through engine. Treat al gear/airframe problems during takeoff phase as tire failures.

Original NASA ASRS Text

Title: ACR MLG LOST A TIRE TREAD DURING TKOF FROM PHL, CONTINUED TO MIA.

Narrative: LOST TREAD FROM #3 MAIN TIRE ON TKOF. NO INDICATION OF TIRE FAILURE IN COCKPIT OR CABIN (HAD A DEAD HDG CAPT AND F/O SITTING DIRECTLY OVER WING IN CABIN). AS ACFT LIFTED OFF, RIGHT MAIN INDICATOR WENT UNSAFE AND GREEN INDICATORS FOR THE OTHER GEAR WENT OUT. ALL ENG INS REMAINED STEADY AND NORMAL. NO AIRFRAME VIBRATION OR ANY OTHER NOSE. MISDIAGNOSED PROB AS A GEAR INDICATION PROB. NO CALLS FROM OTHER SOURCES ADVISING OF A FAILURE. WAS SELCALED BY THE COMPANY AN HR AFTER TKOF TO ADVISE THAT PHL TWR HAD FOUND RUBBER ON THE RWY AND THAT IT MIGHT HAVE BEEN MY ACFT. HAD ADVISED PHL DEP WHEN INITIALLY CONTACTED THEM THAT WE WOULD OPERATE AT REDUCED AIRSPD WHILE WE SORTED OUT GEAR INDICATION PROB. ALSO TALKED TO COMPANY MAINT ABOUT THE PROB BEFORE CONTINUING ON TO MIA. HAD EXPECTED TO HAVE TO VISUALLY VERIFY GEAR DOWN IN MIA (COMPANY MAJOR MAINT BASE). WHEN ADVISED OF RUBBER ON RWY, KNEW WHAT THE PROB WAS. DIDN'T CHANGE DECISION TO INSPECT GEAR THROUGH THE FLOOR VIEW PORT, BUT NOW KNEW WHY. TIRE TREAD (RECAP) TORE UP TRAILING EDGE OF RIGHT FLAP AND DENTED ENG NACELLE. SMALL CHUNK WENT THROUGH ENG. TREAT AL GEAR/AIRFRAME PROBS DURING TKOF PHASE AS TIRE FAILURES.

Data retrieved from NASA's ASRS site as of July 2007 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.