<< >> NASA ASRS Report 791533, June 2008

MD80 first officer reports start valve open light on in flight after maintenance for start valve light not working on ground during start.

Attributes
ACN	791533
Time
Date	200806
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 26000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zzz.artcc
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	791533
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : start valve open light other flight crewa other flight crewb
Resolutory Action	flight crew : declared emergency flight crew : landed in emergency condition
Consequence	other
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Ambiguous

Narrative:

On the first push out the left start valve open light did not illuminate. We returned to the gate and maintenance replaced the left start valve. Maintenance then checked to see if the left valve would illuminate open and it did not. Maintenance then found a bleed line on top of the engine that came off and reattached the line. The left engine then started fine. On taxi out captain wanted us to review the new bulletin on start valve open light. We reviewed this procedure at the hold short line. Climbing through 26000 ft captain noticed the left start valve open light illuminated. He declared an emergency and started a turn back to ZZZ. I never did put the QRH back in my kitbag; but had it out just in case. I ran the start valve open; single engine landing; emergency; cruise; and descent checklist. After that was done I worked the radios while captain flew the plane. We had an uneventful smooth overweight landing.

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Original NASA ASRS Text

Title: MD80 FO REPORTS START VALVE OPEN LIGHT ON IN FLIGHT AFTER MAINTENANCE FOR START VALVE LIGHT NOT WORKING ON GROUND DURING START.

Narrative: ON THE FIRST PUSH OUT THE L START VALVE OPEN LIGHT DID NOT ILLUMINATE. WE RETURNED TO THE GATE AND MAINT REPLACED THE L START VALVE. MAINT THEN CHKED TO SEE IF THE L VALVE WOULD ILLUMINATE OPEN AND IT DID NOT. MAINT THEN FOUND A BLEED LINE ON TOP OF THE ENG THAT CAME OFF AND REATTACHED THE LINE. THE L ENG THEN STARTED FINE. ON TAXI OUT CAPT WANTED US TO REVIEW THE NEW BULLETIN ON START VALVE OPEN LIGHT. WE REVIEWED THIS PROC AT THE HOLD SHORT LINE. CLBING THROUGH 26000 FT CAPT NOTICED THE L START VALVE OPEN LIGHT ILLUMINATED. HE DECLARED AN EMER AND STARTED A TURN BACK TO ZZZ. I NEVER DID PUT THE QRH BACK IN MY KITBAG; BUT HAD IT OUT JUST IN CASE. I RAN THE START VALVE OPEN; SINGLE ENG LNDG; EMER; CRUISE; AND DSCNT CHKLIST. AFTER THAT WAS DONE I WORKED THE RADIOS WHILE CAPT FLEW THE PLANE. WE HAD AN UNEVENTFUL SMOOTH OVERWT LNDG.

Data retrieved from NASA's ASRS site as of May 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.