Aircraft returned and landed due to nose gear problem. Maintenance inspector found several discrepan...

Attributes
ACN	206413
Time
Date	199203
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : den
State Reference	CO
Aircraft 1
Controlling Facilities	tower : cvg
Operator	common carrier : air carrier
Make Model Name	Large Transport
Person 1
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
ASRS Report	206413
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa other other : unspecified
Resolutory Action	flight crew : declared emergency flight crew : overcame equipment problem other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Aircraft a experienced an air return due to nose strut not fully extending causing the proximity switches to not engage. Upon investigation, it was found that the top bearing on the strut had been improperly assembled. Further into the investigation, it was found that the maintenance manual had no provision for inspection, or even for a maintenance evaluation, of the assembly in question. My involvement in the situation was to inspect the lower part of the inner cylinder prior to installation. The corrective action would be to revise the task procedures to include the area in question and to document the fact that said area has been inspected.

Original NASA ASRS Text

Title: ACFT RETURNED AND LANDED DUE TO NOSE GEAR PROBLEM. MAINT INSPECTOR FOUND SEVERAL DISCREPANCIES INCLUDING PROC MISSING FROM THE MAINT MANUAL THAT MIGHT HAVE PRECLUDED THE ORIGINAL PROBLEM (MECH RPT).

Narrative: ACFT A EXPERIENCED AN AIR RETURN DUE TO NOSE STRUT NOT FULLY EXTENDING CAUSING THE PROX SWITCHES TO NOT ENGAGE. UPON INVESTIGATION, IT WAS FOUND THAT THE TOP BEARING ON THE STRUT HAD BEEN IMPROPERLY ASSEMBLED. FURTHER INTO THE INVESTIGATION, IT WAS FOUND THAT THE MAINT MANUAL HAD NO PROVISION FOR INSPECTION, OR EVEN FOR A MAINT EVALUATION, OF THE ASSEMBLY IN QUESTION. MY INVOLVEMENT IN THE SITUATION WAS TO INSPECT THE LOWER PART OF THE INNER CYLINDER PRIOR TO INSTALLATION. THE CORRECTIVE ACTION WOULD BE TO REVISE THE TASK PROCS TO INCLUDE THE AREA IN QUESTION AND TO DOCUMENT THE FACT THAT SAID AREA HAS BEEN INSPECTED.

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.

Aircraft returned and landed due to nose gear problem. Maintenance inspector found several discrepancies including procedure missing from the maintenance manual that might have precluded the original problem (mechanic report).