It was discovered that the medium large transport maintenance manual had incorrect torque values for...

Attributes
ACN	210986
Time
Date	199205
Day	Wed
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : ord
State Reference	IL
Altitude	agl bound lower : 0 agl bound upper : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	other
Person 1
Affiliation	company : air carrier
Function	other personnel other
Qualification	other other : other
ASRS Report	210986
Events
Anomaly	non adherence : far other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Chart Or Publication
Air Traffic Incident	other
Situations
Publication	Unspecified

Narrative:

At the time was performing a nose tire change on an medium large transport. The work was being done per the company maintenance manual, for the tire change. This procedure included torquing the axle nut for the nose tire installation. In a conversation at a later date, the subject of torque on the medium large transport nose tire was discussed. At that time it was determined that the maintenance manual was incorrect on torque values for nose tire installation. This caused concern on my part and the reason behind filing this report. The aircraft had returned to service before I was aware of this discrepancy in the maintenance manual. The correct department was made aware of this discrepancy.

Original NASA ASRS Text

Title: IT WAS DISCOVERED THAT THE MLG MAINT MANUAL HAD INCORRECT TORQUE VALUES FOR THE NOSE GEAR TIRE. THE ACFT HAD ALREADY DEPARTED.

Narrative: AT THE TIME WAS PERFORMING A NOSE TIRE CHANGE ON AN MLG. THE WORK WAS BEING DONE PER THE COMPANY MAINT MANUAL, FOR THE TIRE CHANGE. THIS PROC INCLUDED TORQUING THE AXLE NUT FOR THE NOSE TIRE INSTALLATION. IN A CONVERSATION AT A LATER DATE, THE SUBJECT OF TORQUE ON THE MLG NOSE TIRE WAS DISCUSSED. AT THAT TIME IT WAS DETERMINED THAT THE MAINT MANUAL WAS INCORRECT ON TORQUE VALUES FOR NOSE TIRE INSTALLATION. THIS CAUSED CONCERN ON MY PART AND THE REASON BEHIND FILING THIS RPT. THE ACFT HAD RETURNED TO SVC BEFORE I WAS AWARE OF THIS DISCREPANCY IN THE MAINT MANUAL. THE CORRECT DEPT WAS MADE AWARE OF THIS DISCREPANCY.

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.

It was discovered that the medium large transport maintenance manual had incorrect torque values for the nose gear tire. The aircraft had already departed.