An MD88 was dispatched with a worn #1 main landing gear tire. Deferred for 10 cycles. Tire went flat on taxi out. On return to gate #2 main tire went flat. Blocked active runway. Passenger deplaned into busses.

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Attributes
ACN	628624
Time
Date	200408
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-88
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tower : zzz.tower
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	ground : taxi
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : cfi pilot : flight engineer
Experience	flight time last 90 days : 200 flight time total : 8500 flight time type : 675
ASRS Report	628624
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure non adherence : far
Independent Detector	other other : 3
Resolutory Action	other
Consequence	other other other Other
Factors
Maintenance	contributing factor : manuals contributing factor : schedule pressure performance deficiency : inspection performance deficiency : scheduled maintenance performance deficiency : repair
Supplementary
Problem Areas	Aircraft Chart Or Publication Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

While taxiing out for departure, another aircraft behind us asked that we contact them on a discrete frequency. Upon contact, we were notified by the flight crew that they were behind us and our #1 main tire appeared low. This tire had been written up due to wear, however, maintenance released it for 10 additional lndgs. Since we were close to maximum gross weight, we opted to return to the gate to have maintenance inspect the tire. As the captain taxied down the runway as instructed by tower, both left tires went flat. This disabled the aircraft on an active runway. The passenger had to be deplaned down the aft stairs unto 'people movers.' I feel that the FAA's permission to allow 10 additional lndgs on a tire that has been written up is excessive. For yrs it has been 5 additional lndgs, but when the industry began to have financial difficulties, maintenance oversight seems to slide.

Original NASA ASRS Text

Title: AN MD88 WAS DISPATCHED WITH A WORN #1 MAIN LNDG GEAR TIRE. DEFERRED FOR 10 CYCLES. TIRE WENT FLAT ON TAXI OUT. ON RETURN TO GATE #2 MAIN TIRE WENT FLAT. BLOCKED ACTIVE RWY. PAX DEPLANED INTO BUSSES.

Narrative: WHILE TAXIING OUT FOR DEP, ANOTHER ACFT BEHIND US ASKED THAT WE CONTACT THEM ON A DISCRETE FREQ. UPON CONTACT, WE WERE NOTIFIED BY THE FLT CREW THAT THEY WERE BEHIND US AND OUR #1 MAIN TIRE APPEARED LOW. THIS TIRE HAD BEEN WRITTEN UP DUE TO WEAR, HOWEVER, MAINT RELEASED IT FOR 10 ADDITIONAL LNDGS. SINCE WE WERE CLOSE TO MAX GROSS WT, WE OPTED TO RETURN TO THE GATE TO HAVE MAINT INSPECT THE TIRE. AS THE CAPT TAXIED DOWN THE RWY AS INSTRUCTED BY TWR, BOTH L TIRES WENT FLAT. THIS DISABLED THE ACFT ON AN ACTIVE RWY. THE PAX HAD TO BE DEPLANED DOWN THE AFT STAIRS UNTO 'PEOPLE MOVERS.' I FEEL THAT THE FAA'S PERMISSION TO ALLOW 10 ADDITIONAL LNDGS ON A TIRE THAT HAS BEEN WRITTEN UP IS EXCESSIVE. FOR YRS IT HAS BEEN 5 ADDITIONAL LNDGS, BUT WHEN THE INDUSTRY BEGAN TO HAVE FINANCIAL DIFFICULTIES, MAINT OVERSIGHT SEEMS TO SLIDE.

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.