A fokker 100 after a flap control valve was installed it was discovered the removed valve was reinst...

Attributes
ACN	439865
Time
Date	199906
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Fokker 100
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance ground : parked
Flight Plan	None
Person 1
Function	maintenance : technician
Qualification	technician : airframe technician : powerplant
ASRS Report	439865
Person 2
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : powerplant technician : airframe
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : far non adherence : published procedure
Independent Detector	aircraft equipment other aircraft equipment : flap indicator
Resolutory Action	none taken : detected after the fact
Consequence	other
Factors
Maintenance	performance deficiency : installation performance deficiency : repair
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

I was notified by my shop steward that the hydraulic shutoff valve I removed from aircraft xyz was the same serial number on the new parts tag. He said the aircraft had faulted again in dfw with a flap disagreement, which it had a long history of. I removed the valve from the aircraft during which I had gotten skydrol 500 in my eyes and could not see for about 30 mins. I tried to keep working because time was short and I needed to complete the job as soon as possible. I apparently installed the old valve back on the aircraft. I completed a flap test with no faults.

Original NASA ASRS Text

Title: A FOKKER 100 AFTER A FLAP CTL VALVE WAS INSTALLED IT WAS DISCOVERED THE REMOVED VALVE WAS REINSTALLED INADVERTENTLY.

Narrative: I WAS NOTIFIED BY MY SHOP STEWARD THAT THE HYD SHUTOFF VALVE I REMOVED FROM ACFT XYZ WAS THE SAME SERIAL NUMBER ON THE NEW PARTS TAG. HE SAID THE ACFT HAD FAULTED AGAIN IN DFW WITH A FLAP DISAGREEMENT, WHICH IT HAD A LONG HISTORY OF. I REMOVED THE VALVE FROM THE ACFT DURING WHICH I HAD GOTTEN SKYDROL 500 IN MY EYES AND COULD NOT SEE FOR ABOUT 30 MINS. I TRIED TO KEEP WORKING BECAUSE TIME WAS SHORT AND I NEEDED TO COMPLETE THE JOB ASAP. I APPARENTLY INSTALLED THE OLD VALVE BACK ON THE ACFT. I COMPLETED A FLAP TEST WITH NO FAULTS.

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.

A fokker 100 after a flap control valve was installed it was discovered the removed valve was reinstalled inadvertently.