# Incident 20230112002849I: Embraer EMB-145, Little Rock, AR, January 12, 2023 - Type: FAA incident report (Accident/Incident Data System), as reported - Date: January 12, 2023, 12:57 local time - Place: Little Rock, AR - Airport: Little Rock - Damage: Minor damage - Phase of flight: Takeoff: Departure Roll - Operating rules: Air carrier (Part 121) - Operator: SIMA - Location: 34.7465° N, 92.2896° W: Placed by OpenAirDocs: center of Little Rock, AR, within about 6 miles (OpenAirDocs) - Nearby events: https://openairdocs.org/map.md?lat=34.7465&lon=-92.2896&mi=10 - Aircraft: N613AE, registered now (https://openairdocs.org/aircraft/N613AE) (OpenAirDocs) - Registry model: Embraer EMB-145 (registry code 3260210, https://openairdocs.org/model/embraer-emb-145) (OpenAirDocs) - Registry engine: Allison AE-3007A (registry code 03030, https://openairdocs.org/engine/allison-ae-3007a) (OpenAirDocs) - Reported make and model: EMBRAER EMB-145 - Reported engine: ALLISON AE 3007A - People aboard: 43 - Fatal injuries: 0 - Other injuries: 0 - FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/) - Page: https://openairdocs.org/incident/20230112002849I ## Narrative As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^. LITTLE ROCK TOWER REPORTS, LITTLE ROCK, AR (LIT):^PRIVACY DATA OMITTED^, E145, LIT-ORD, BLEW A TIRE DURING DEPARTURE RWY4R. ARPT OPS RECOVERED TIRE FOD FROM THE RUNWAY, NOTING THAT THERE MAY BE A SECOND BLOWN TIRE AS WELL. ACFT CONTINUED TO DESTINATION. INJURIES: NONE, DAMAGE: EXTENT UNKNOWN. 01/12/2023 1857Z MAIN CAUSE OF THIS INCIDENT WAS VERIFIED AS THE LEFT HAND OUTBOARD (L/H O/B) MAIN LANDING GEAR (MLG) TIRE TREAD SEPARATION FAILURE. AIRCRAFT HISTORY INDICATES THAT THIS TIRE, SERIAL NUMBER 11455239 WAS INSTALLED ON WHEEL ASSEMBLY, PART NUMBER 3-1641, SN 33620854P, WHEEL AND TIRE ASSEMBLY WAS PLACED ON THE AFFECTED AIRCRAFT ON 22 NOVEMBER 2022 AT 46,268 TLDG. TIRE FAILURE WAS EXPERIENCED AT 46,478 TLDG (210 CYCLES). A TEAR DOWN REPORT WAS REQUESTED FROM THE ASSOCIATED TIRE MANUFACTURER AFTER THIS INCIDENT ON THE L/H O/B MLG TIRE ON THE AFFECTED AIRCRAFT. TIRE TEAR DOWN REPORT A TEARDOWN INSPECTION WAS COMPLETED ON 06 APRIL 2023 BY THE TIRE VENDOR FOR THE TIRE THAT HAD TREAD SEPARATION ON ^PRIVACY DATA OMITTED^ HAVING SERIAL NUMBER # 1145239. TIRE WAS A R2, RETREAD/RECAP COMPLETED BY AN APPROVED VENDOR. TEAR DOWN ACCOUNT OF INCIDENT PILOT FELT YAW AFTER 90 KNOTS AND SMELLED RUBBER. OBSERVED FAILED #1 TIRE ON POST-FLIGHT WALK-AROUND. THE PRESSURE WAS NOT MEASURED AFTER THE INCIDENT, BUT THE TIRE DID NOT RUPTURE OR LOSE PRESSURE AS A RESULT OF THE INCIDENT. TEARDOWN ANALYSIS THE TIRE RECEIVED AN INJURY OR OVERLOAD TO THE OUTBOARD SIDEWALL/SHOULDER. THIS MAY HAVE BEEN FROM RUNNING OVER AN OBJECT THAT BLUNTLY INJURED THE SIDEWALL OR FROM A CROSS-WIND LANDING WHERE THE AIRCRAFT WAS SET-DOWN WHILE KEEPING THE WINDWARD WING LOW, SETTING DOWN FIRST AND POSSIBLY HARD ON THE #1 TIRE AND POSSIBLY HAVING A PROLONGED YAW AND SKID. UNDER INFLATION IS A POSSIBILITY, BUT IN THIS CASE IT PRIMARILY AFFECTED THE OUTBOARD SHOULDER. THE WAY THE TIRE FAILED REMOVED MOST OF THE SHOULDER MATERIAL, MAKING IT HARD TO VERIFY AN UNDERINFLATED CONDITION. THE PAINT TRANSFER FROM THE WHEEL COULD BE A VERIFICATION OF UNDER INFLATION, AS THE BEAD MAY HAVE BEEN WORKING ON THE WHEEL, CAUSING THE PAINT TRANSFER. THIS COULD ALSO BE EXPLAINED-AWAY IF THE WHEEL WAS RECENTLY OVERHAULED AND THE PAINT WAS NOT FULLY CURED. ALIGNMENT ISSUES THAT COULD HAVE POSSIBLY HAD THIS TIRE “TOEING-IN” COULD ALSO EXPLAIN THE A-SYMMETRICAL FATIGUE ON THE OUTBOARD SHOULDER. WHICHEVER EVENT PRECIPITATED THE FAILURE CHAIN, IT OVERHEATED OR INJURED THE OUTBOARD SIDE OF THIS #1 TIRE AND CAUSED A DEGRADATION OF THE CRITICAL AREA AT THE EDGE OF THE UPPER AND LOWER PAIRS OF TREAD REINFORCEMENT PLIES. THIS HAPPENED A-SYMMETRICALLY AND DEFINITELY STARTED ON THE SERIAL NUMBER SIDE, WHICH IS THE OUTBOARD SIDE OF TIRE #1. IF THERE WAS A SPECIFIC INJURY THAT PRECIPITATED THIS FAILURE PROCESS, THE AIRCRAFT MADE A NUMBER OF CYCLES AFTER THE ORIGINAL INJURY AND THE INJURED AREA, THE EDGE OF THE TREAD REINFORCEMENT PLY, EXPANDED CIRCUMFERENTIALLY AND THEN LATERALLY UNTIL THE ENTIRE TREAD CONSTRUCTION ABOVE THE BODY PLIES GAVE WAY. IF THERE WAS NO SPECIFIC INJURY AND THIS FAILURE HAPPENED PURELY FROM OPERATIONALLY INDUCED FATIGUE, THEN CERTAINLY THERE WERE NUMEROUS CYCLES PLACED ON THE TIRE BEFORE THE FAILURE OCCURRED AND IT FAILED IN THE SAME WAY AS DESCRIBED ABOVE. IN CONCLUSION, EVEN THOUGH THIS TIRE DOES NOT HAVE MUCH REMAINING MATERIAL THAT EXACTLY TELLS WHAT THE ROOT CAUSE OF THIS FAILURE WAS, THE EVIDENCE INDICATES THAT THIS TIRE FAILED BECAUSE OF AN INJURY TO THE SHOULDER OR OPERATIONALLY INDUCED FATIGUE WITH SOME EVENT OCCURRING THAT OVERHEATED AND FATIGUED THE SERIAL NUMBER SHOULDER AND LED TO THE LOSS OF THE TREAD AND UNDERLYING REINFORCEMENT PACKAGES. CONCLUSION POSSIBILITIES EXIST WHEREAS THE AFFECTED AIRCRAFT TIRE COULD HAVE BEEN OPERATED WITH A SIDE LOAD DURING LANDING OR TAKEOFF. PREVIOUS TIRE DAMAGE ALSO MAY HAVE OCCURRED BY RUNNING OVER A BLUNT OBJECT, EITHER BY MAINTENANCE OR FLIGHT CREW. BOTH CONDITIONS APPARENTLY CREATING A CREASE AND AFTER FURTHER SUCCESSION CAUSED IMMINENT TREAD SEPERATION. From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.