MD80 flight crew has generator and pressurization problems; descends; declares emergency; overcomes equipment problems; cancels emergency and continues flight.

Home

Browse by month

Random

Latest

About

Contact

Attributes
ACN	694735
Time
Date	200604
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 33000
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	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	694735
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	aircraft equipment other aircraft equipment : eicas other flight crewa other flight crewb
Resolutory Action	flight crew : overcame equipment problem flight crew : declared emergency
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

While at cruise at FL330 we noticed that the AC xtie light had illuminated. Per our QRH procedure we checked each generator for volts and frequency and they were normal. Approximately 5 mins later we lost several system; and it seemed we were losing pressurization. We declared an emergency to steeply descend to FL250. Once we reached FL250 we noticed that the left generator had been lost. We completed the QRH AC xtie lockout procedure and started to regain pressurization. After monitoring the situation and starting the APU; the captain decided to terminate the emergency and proceed. No further problems were encountered.

Original NASA ASRS Text

Title: MD80 FLT CREW HAS GENERATOR AND PRESSURIZATION PROBS; DSNDS; DECLARES EMER; OVERCOMES EQUIP PROBS; CANCELS EMER AND CONTINUES FLT.

Narrative: WHILE AT CRUISE AT FL330 WE NOTICED THAT THE AC XTIE LIGHT HAD ILLUMINATED. PER OUR QRH PROC WE CHKED EACH GENERATOR FOR VOLTS AND FREQ AND THEY WERE NORMAL. APPROX 5 MINS LATER WE LOST SEVERAL SYS; AND IT SEEMED WE WERE LOSING PRESSURIZATION. WE DECLARED AN EMER TO STEEPLY DSND TO FL250. ONCE WE REACHED FL250 WE NOTICED THAT THE L GENERATOR HAD BEEN LOST. WE COMPLETED THE QRH AC XTIE LOCKOUT PROC AND STARTED TO REGAIN PRESSURIZATION. AFTER MONITORING THE SITUATION AND STARTING THE APU; THE CAPT DECIDED TO TERMINATE THE EMER AND PROCEED. NO FURTHER PROBS WERE ENCOUNTERED.

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.