A saab-340B mechanic inadvertently installed a flap control handle incorrectly.

Attributes
ACN	767785
Time
Date	200712
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	SF 340B
Operating Under FAR Part	Part 121
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : powerplant technician : airframe
ASRS Report	767785
Person 2
Affiliation	company : air carrier
Function	maintenance : lead technician
Events
Anomaly	maintenance problem : improper maintenance non adherence : published procedure non adherence : far
Independent Detector	other other : 2
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	contributing factor : briefing contributing factor : manuals performance deficiency : non compliance with legal requirements performance deficiency : training performance deficiency : installation
Supplementary
Problem Areas	Chart Or Publication Maintenance Human Performance Aircraft
Primary Problem	Maintenance Human Performance

Narrative:

I was told by lead mechanic to install a flap control knob. According to mr X; I inadvertently installed the knob incorrectly. I operated the flaps and they went up and down correctly; however; as stated the knob was put on incorrectly; this was the third aircraft I worked and helped on for the night. A pilot observed the flap handle knob installed incorrectly while in-flight. The knob was written up again and the knob was placed on correctly by maintenance. Basically the reference material was insufficient and it being the third aircraft worked on I was fatigued. Having a better visual documentation and perhaps a verification check.

Original NASA ASRS Text

Title: A SAAB-340B MECHANIC INADVERTENTLY INSTALLED A FLAP CONTROL HANDLE INCORRECTLY.

Narrative: I WAS TOLD BY LEAD MECH TO INSTALL A FLAP CTL KNOB. ACCORDING TO MR X; I INADVERTENTLY INSTALLED THE KNOB INCORRECTLY. I OPERATED THE FLAPS AND THEY WENT UP AND DOWN CORRECTLY; HOWEVER; AS STATED THE KNOB WAS PUT ON INCORRECTLY; THIS WAS THE THIRD ACFT I WORKED AND HELPED ON FOR THE NIGHT. A PLT OBSERVED THE FLAP HANDLE KNOB INSTALLED INCORRECTLY WHILE INFLT. THE KNOB WAS WRITTEN UP AGAIN AND THE KNOB WAS PLACED ON CORRECTLY BY MAINT. BASICALLY THE REF MATERIAL WAS INSUFFICIENT AND IT BEING THE THIRD ACFT WORKED ON I WAS FATIGUED. HAVING A BETTER VISUAL DOCUMENTATION AND PERHAPS A VERIFICATION CHK.

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.