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A B767 was dispatched in non compliance with an airworthiness directive with a vertical stabilizer barrel nut replaced but not torqued correctly.
| Attributes | |
| ACN | 450208 |
| Time | |
| Date | 199909 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : parked ground : maintenance |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | maintenance : technician |
| Qualification | technician : powerplant technician : airframe |
| ASRS Report | 450208 |
| Events | |
| Anomaly | aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure non adherence : far |
| Resolutory Action | none taken : unable |
| Consequence | other |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Chart Or Publication Aircraft |
| Primary Problem | Maintenance Human Performance |
Narrative:
On sep/xa/99, I replaced 1 barrel nut for the vertical stabilizer attach bolts. When torquing bolt, I used the torque value given on the pending airworthiness directive card xzzx (1800-2200 inch pounds). The torque value given in the air carrier job card is 7800-8800 inch pounds.
Original NASA ASRS Text
Title: A B767 WAS DISPATCHED IN NON COMPLIANCE WITH AN AIRWORTHINESS DIRECTIVE WITH A VERT STABILIZER BARREL NUT REPLACED BUT NOT TORQUED CORRECTLY.
Narrative: ON SEP/XA/99, I REPLACED 1 BARREL NUT FOR THE VERT STABILIZER ATTACH BOLTS. WHEN TORQUING BOLT, I USED THE TORQUE VALUE GIVEN ON THE PENDING AIRWORTHINESS DIRECTIVE CARD XZZX (1800-2200 INCH LBS). THE TORQUE VALUE GIVEN IN THE ACR JOB CARD IS 7800-8800 INCH LBS.
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.