Narrative:

Was informed that aircraft had an in-flight air/ground fail message and turned around to land and upon landing nose strut collapsed. The night before that plane had a maintenance check. I was involved in the work card which is the servicing of the nose landing gear strut. I followed the work card step by step. At the time I did not see any defects or problems. I am concerned that there might be a malfunction with the equipment or the work card. I would suggest looking over the work card to verify it right and check the equipment. The work card states to use the pressure gauge on the nitrogen bottle; the gauge on the bottle is not suitable for the pressure needed. We have used a strut pressure gauge hooked up to the bottle for a more accurate reading. Put that in the work card.

Related reports:

Google
 

Original NASA ASRS Text

Title: AFTER SVCING THE NOSE STRUT THE PREVIOUS NIGHT; AN EMB-140 ACFT HAD INFLT AIR/GND FAIL MESSAGE AND TURNED AROUND TO LAND. NOSE STRUT COLLAPSED UPON LANDING.

Narrative: WAS INFORMED THAT ACFT HAD AN INFLT AIR/GND FAIL MESSAGE AND TURNED AROUND TO LAND AND UPON LNDG NOSE STRUT COLLAPSED. THE NIGHT BEFORE THAT PLANE HAD A MAINT CHK. I WAS INVOLVED IN THE WORK CARD WHICH IS THE SVCING OF THE NOSE LNDG GEAR STRUT. I FOLLOWED THE WORK CARD STEP BY STEP. AT THE TIME I DID NOT SEE ANY DEFECTS OR PROBS. I AM CONCERNED THAT THERE MIGHT BE A MALFUNCTION WITH THE EQUIP OR THE WORK CARD. I WOULD SUGGEST LOOKING OVER THE WORK CARD TO VERIFY IT RIGHT AND CHK THE EQUIP. THE WORK CARD STATES TO USE THE PRESSURE GAUGE ON THE NITROGEN BOTTLE; THE GAUGE ON THE BOTTLE IS NOT SUITABLE FOR THE PRESSURE NEEDED. WE HAVE USED A STRUT PRESSURE GAUGE HOOKED UP TO THE BOTTLE FOR A MORE ACCURATE READING. PUT THAT IN THE WORK CARD.

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.