Maintenance technician reported finding replacement tires severely underinflated from shop.

Narrative:

Aircraft came in on a through trip with [a maintenance alert] assigned for #2 main tire worn. When installing gear pins; I found exposed cords on #1; #2; [and] #4 main tires. My partner was [retrieving a replacement] tire for assigned [maintenance alert] tire. I sent him to get the 2 additional tires while I jacked the aircraft and began removal of #1 [and] #2 tire assemblies. Found that all 3 replaced tires came from the shop significantly under-inflated. We just barely completed work before end of our shift; without delay to flight.

Original NASA ASRS Text

Title: Maintenance Technician reported finding replacement tires severely underinflated from shop.

Narrative: Aircraft came in on a through trip with [a maintenance alert] assigned for #2 main tire worn. When installing gear pins; I found exposed cords on #1; #2; [and] #4 main tires. My partner was [retrieving a replacement] tire for assigned [maintenance alert] tire. I sent him to get the 2 additional tires while I jacked the aircraft and began removal of #1 [and] #2 tire assemblies. Found that all 3 replaced tires came from the shop significantly under-inflated. We just barely completed work before end of our shift; without delay to flight.

Data retrieved from NASA's ASRS site 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.

Attributes
ACN	1688286
Time
Date	201908
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Make Model Name	B737-900
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Main Gear Wheel
Person 1
Function	Technician
Qualification	Maintenance Airframe Maintenance Powerplant
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy