A senior mechanic reports forgetting to include in their maintenance paperwork; a re-torque of the m...

Attributes
ACN	850851
Time
Date	200908
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Dusk
Aircraft 1
Make Model Name	Kiowa/Kiowa Warrior/Combat Scout
Operating Under FAR Part	Part 135
Flight Phase	Parked Takeoff
Component
Aircraft Component	Main Rotor
Person 1
Function	Lead Technician
Qualification	Maintenance Airframe Maintenance Powerplant
Experience	Maintenance Technician 25
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Maintenance Deviation - Procedural FAR Deviation - Procedural Published Material / Policy

Narrative:

Upon completion of main rotor blade replacement; I did not annotate a 3 to 8 hour torque check requirement of the main rotor mast nut; as per bell maintenance manual chapter 05 and or; far 135 aaip (inspection procedures). In the engineering report; it should have been noted that M/right mast nut torque check was due when aircraft total time reached XX880.4 to XX885.4. As a result; aircraft flew to aircraft total time XX888.6 before we caught our mistake. We flew flight hours over the torque check. This was not an intended oversight. Working pressure to return aircraft to service was a major factor. As senior mechanic I know better; even though others were involved. I take full responsibility for this action. In hoping others will learn. We must check and recheck paperwork.

Original NASA ASRS Text

Title: A Senior Mechanic reports forgetting to include in their maintenance paperwork; a re-torque of the Main Rotor Mast retention nut on a Bell 206L series helicopter within three to eight hours of flight operations. As a result; the aircraft overflew the required torque check.

Narrative: Upon completion of main rotor blade replacement; I did not annotate a 3 to 8 hour torque check requirement of the main rotor mast nut; as per Bell Maintenance Manual Chapter 05 and or; FAR 135 AAIP (Inspection Procedures). In the engineering report; it should have been noted that M/R mast nut torque check was due when aircraft total time reached XX880.4 to XX885.4. As a result; aircraft flew to aircraft total time XX888.6 before we caught our mistake. We flew flight hours over the Torque Check. This was not an intended oversight. Working pressure to return aircraft to service was a major factor. As Senior Mechanic I know better; even though others were involved. I take full responsibility for this action. In hoping others will learn. We must check and recheck paperwork.

Data retrieved from NASA's ASRS site as of April 2012 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.

A senior mechanic reports forgetting to include in their maintenance paperwork; a re-torque of the main rotor mast retention nut on a bell 206L series helicopter within three to eight hours of flight operations. As a result; the aircraft overflew the required torque check.