<< >> NASA ASRS Report 164616, November 1990

Flight crew shut down left engine and lost all power to aircraft because right engine also shut down with switch still on. Log book entry for maintenance.

Attributes
ACN	164616
Time
Date	199011
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : sea
State Reference	WA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Widebody, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : instrument
Experience	flight time last 90 days : 180 flight time total : 9000 flight time type : 400
ASRS Report	164616
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : commercial pilot : atp
Experience	flight time last 90 days : 160 flight time total : 18000 flight time type : 700
ASRS Report	164398
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Flight was returning to gate at the request of msp company maintenance control. Since aircraft had been prepared for takeoff, the after landing check was called for and executed. I advised the captain that we would be using external power once we arrived at the gate. As the aircraft came to a stop at the gate, the captain called for the seat belt sign to be turned off. I did so. I then directed my attention to the external power 'avail' light/switch to wait for it to illuminate. At that instant, all power to the aircraft busses had been interrupted and all cri's had gone black. I then looked down at the engine master switches. #1 was off and #2 was on. I then looked back to the external power 'avail' light. It had illuminated, indicating that external power had been connected to the aircraft. I selected external power and thus restored power to the aircraft. The captain said when he shut down engine #1 that both engines had been shut down. He then entered this event into the aircraft maintenance log book.

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Original NASA ASRS Text

Title: FLT CREW SHUT DOWN LEFT ENGINE AND LOST ALL POWER TO ACFT BECAUSE RIGHT ENGINE ALSO SHUT DOWN WITH SWITCH STILL ON. LOG BOOK ENTRY FOR MAINTENANCE.

Narrative: FLT WAS RETURNING TO GATE AT THE REQUEST OF MSP COMPANY MAINT CTL. SINCE ACFT HAD BEEN PREPARED FOR TKOF, THE AFTER LNDG CHK WAS CALLED FOR AND EXECUTED. I ADVISED THE CAPT THAT WE WOULD BE USING EXTERNAL PWR ONCE WE ARRIVED AT THE GATE. AS THE ACFT CAME TO A STOP AT THE GATE, THE CAPT CALLED FOR THE SEAT BELT SIGN TO BE TURNED OFF. I DID SO. I THEN DIRECTED MY ATTN TO THE EXTERNAL PWR 'AVAIL' LIGHT/SWITCH TO WAIT FOR IT TO ILLUMINATE. AT THAT INSTANT, ALL PWR TO THE ACFT BUSSES HAD BEEN INTERRUPTED AND ALL CRI'S HAD GONE BLACK. I THEN LOOKED DOWN AT THE ENG MASTER SWITCHES. #1 WAS OFF AND #2 WAS ON. I THEN LOOKED BACK TO THE EXTERNAL PWR 'AVAIL' LIGHT. IT HAD ILLUMINATED, INDICATING THAT EXTERNAL PWR HAD BEEN CONNECTED TO THE ACFT. I SELECTED EXTERNAL PWR AND THUS RESTORED PWR TO THE ACFT. THE CAPT SAID WHEN HE SHUT DOWN ENG #1 THAT BOTH ENGS HAD BEEN SHUT DOWN. HE THEN ENTERED THIS EVENT INTO THE ACFT MAINT LOG BOOK.

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.