A contract maintenance manager for a repair station reports about an A319 that had diverted due to p...

Narrative:

I am a maintenance manager for company 'X'; a line maintenance contractor at ZZZ. I handle on-call aircraft maintenance with airlines. Back in july 2010; I was called in for an air carrier A319 aircraft maintenance problem; flight crew stated that after switching ground power to APU power; ECAM has status message 'avionics smoke' and has previous writeups. Also found circuit breaker (C/B) D6 'avionic vent control' was popped; resetting C/B did not help clear ECAM status message. Further trouble shooting found C/B AA7 'ext pwr EGIU1 115vac' popped; reset same; still ECAM message would not clear. Under the direction of air carrier maintenance controller mr.'Y' who was very helpful and guided me [through] the troubleshooting and avionics equipment ventilation computer(aevc) test and [found] 'skin air outlet valve' at fault. Maintenance control advised me to proceed with MEL 21-26-04 and perform maintenance procedures. Then; coming to work [a few days later]; I received a call from mr.'Z'; air carrier program manager stating that the A319 aircraft that I had worked on was diverted to ZZZ1 due to pressurization problem occurred after taking off from ZZZ. I have verbally stated to mr.'Z' that I did follow the MEL procedures under direction of maintenance controller mr. 'Y'

Original NASA ASRS Text

Title: A Contract Maintenance Manager for a repair station reports about an A319 that had diverted due to pressurization problems on an outbound flight after he had deferred and manually 'closed' the skin outlet valve [extract valve].

Narrative: I am a Maintenance Manager for Company 'X'; a Line Maintenance Contractor at ZZZ. I handle On-call aircraft maintenance with airlines. Back in July 2010; I was called in for an air carrier A319 aircraft maintenance problem; flight crew stated that after switching ground power to APU power; ECAM has status message 'Avionics Smoke' and has previous writeups. Also found circuit breaker (C/B) D6 'Avionic Vent Control' was popped; resetting C/B did not help clear ECAM Status message. Further trouble shooting found C/B AA7 'Ext Pwr EGIU1 115vac' popped; reset same; still ECAM message would not clear. Under the direction of air carrier Maintenance Controller Mr.'Y' who was very helpful and guided me [through] the troubleshooting and Avionics Equipment Ventilation Computer(AEVC) test and [found] 'skin air outlet valve' at fault. Maintenance Control advised me to proceed with MEL 21-26-04 and perform maintenance procedures. Then; coming to work [a few days later]; I received a call from Mr.'Z'; air carrier Program Manager stating that the A319 aircraft that I had worked on was diverted to ZZZ1 due to pressurization problem occurred after taking off from ZZZ. I have verbally stated to Mr.'Z' that I did follow the MEL procedures under direction of Maintenance Controller Mr. 'Y'

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.

Attributes
ACN	897457
Time
Date	201007
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	Parked
Component
Aircraft Component	Pressurization System
Person 1
Function	Other / Unknown
Qualification	Maintenance Avionics Maintenance Powerplant Maintenance Airframe
Experience	Maintenance Lead Technician 30 Maintenance Technician 10
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Maintenance

A contract maintenance manager for a repair station reports about an A319 that had diverted due to pressurization problems on an outbound flight after he had deferred and manually 'closed' the skin outlet valve [extract valve].