A B737-900 was discovered to have the leading edge standby shutoff valve electrical connector discon...

Attributes
ACN	697692
Time
Date	200605
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-900
Operating Under FAR Part	Part 121
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
ASRS Report	697692
Person 2
Affiliation	company : air carrier
Function	oversight : supervisor
Events
Anomaly	maintenance problem : improper maintenance non adherence : far non adherence : published procedure
Resolutory Action	flight crew : took evasive action none taken : detected after the fact
Factors
Maintenance	contributing factor : work cards performance deficiency : non compliance with legal requirements performance deficiency : inspection performance deficiency : installation performance deficiency : logbook entry performance deficiency : scheduled maintenance
Supplementary
Problem Areas	Aircraft Chart Or Publication Maintenance Human Performance
Primary Problem	Maintenance Human Performance

Narrative:

In this event a cannon plug for the leading edge standby shutoff valve was found disconnected in the left hand main wheel well. The mechanic that found this asked me if I had noticed this condition since I was the last mechanic to do a service check on the aircraft 2 days earlier. During my inspection I did not see the cannon plug in a disconnected condition; nor did I work on any systems with this discrepancy. Callback conversation with reporter revealed the following information: the reporter stated he had no knowledge of the disconnected connector on the autoslat control valve. During the service check the inspection work accomplished by the reporter in the main wheel well did not involve the autoslat control valve and the disconnected electrical connector was not observed.

Original NASA ASRS Text

Title: A B737-900 WAS DISCOVERED TO HAVE THE LEADING EDGE STANDBY SHUTOFF VALVE ELECTRICAL CONNECTOR DISCONNECTED.

Narrative: IN THIS EVENT A CANNON PLUG FOR THE LEADING EDGE STANDBY SHUTOFF VALVE WAS FOUND DISCONNECTED IN THE LEFT HAND MAIN WHEEL WELL. THE MECH THAT FOUND THIS ASKED ME IF I HAD NOTICED THIS CONDITION SINCE I WAS THE LAST MECH TO DO A SVC CHK ON THE ACFT 2 DAYS EARLIER. DURING MY INSPECTION I DID NOT SEE THE CANNON PLUG IN A DISCONNECTED CONDITION; NOR DID I WORK ON ANY SYSTEMS WITH THIS DISCREPANCY. CALLBACK CONVERSATION WITH REPORTER REVEALED THE FOLLOWING INFO: THE REPORTER STATED HE HAD NO KNOWLEDGE OF THE DISCONNECTED CONNECTOR ON THE AUTOSLAT CONTROL VALVE. DURING THE SERVICE CHECK THE INSPECTION WORK ACCOMPLISHED BY THE REPORTER IN THE MAIN WHEEL WELL DID NOT INVOLVE THE AUTOSLAT CONTROL VALVE AND THE DISCONNECTED ELECTRICAL CONNECTOR WAS NOT OBSERVED.

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.

A B737-900 was discovered to have the leading edge standby shutoff valve electrical connector disconnected.